Building for Eternity: The History and Technology of Roman Concete Engineering in the Sea. Oxford: Oxbow Press, 2014. 352 pp. (Editor and co-author).
Humayma Excavation Project, 2: Nabataean Campground and Necropolis, Byzantine Churches, and Early Islamic Domestic Structures. Boston: American Schools of Oriental Research: 2014. 594 pp. (Co-author)
Humayma Excavation Project, 1: Resources, History, and the Water-Supply System. Boston: American Schools of Oriental Research: 2010. 540 pp.
Oxford Handbook of Engineering and Technology in the Classical World. Oxford: Oxford University Press, 2008. 865 pp., 150 illus. (editor)
Deep-Water Shipwrecks off Skerki Bank: The 1997 Survey. Journal of Roman Archaeology, Suppl. 58. Portsmouth R.I., 2004. 224 pp., 228 illus. (co-author).
Greek and Roman Technology: A Sourcebook. London: Routledge, 1997. xxiv + 624 pp. (co-author).
The Harbours of Caesarea Maritima, vol. II: The Finds and the Ship. BAR Intl. Series, 594. Oxford: British Archaeological Reports, 1994. xv + 272 pp. 71 figs., 44 pls. (editor and co-author).
Classical Views/Echos du monde classique vols. 30 (1986) to 37 (1994). (co-editor).
The Harbours of Caesarea Maritima, Vol. I: The Site and the Excavations. Oxford: British Archaeological Reports, 1989. 517 pp., 307 illus. (editor and contributor).
The Roman Port and Fishery of Cosa. Princeton: Princeton University Press, 1987. 750 pp., 661 illus., 489 figs. (Contributing author).
Bronze Age, Greek and Roman Technology: A Select, Annotated Bibliography. New York: Garland Publishing, New York. xvi + 515 pp.
Greek and Roman Mechanical Water-Lifting Devices: The History of a Technology. Toronto: University of Toronto Press, 1984. xiv + 458 pp., 170 illus.
Sources of Innovation in Later Etruscan Tomb Design. Rome: Giorgio Bretschneider Editore, 1982. 134 pp., 60 plates.
Greek Numismatic Art. Cambridge MA: Fogg Art Museum, 1975.
“Extreme durability in ancient Roman concretes.” American Ceramic Society Bulletin 97.5 (2018) 22-28. (second co-author).
“The Modular Planning of Roman Fortifications in the Near East: Principles and Process.” Pp. 237-72 in W.D. Ward, ed., The Socio-Economic History and Material Culture of the Roman and Byzantine Near East: Essays in Honor of S. Thomas Parker. Piscataway NJ: Gorgias Press, 2017.
“From Church to Farmhouse: The Re-Use of Christian Structures in Early Islamic Humayma.” Studies in the History and Archaeology of Jordan 12 (2015) 263-78.
“Technology, innovation, and trade: research into the engineering characteristics of Roman maritime concrete.” Pp. 107-19 in D. Robinson, A. Wilson, eds., Maritime Archaeology and Ancient Trade in the Mediterranean. Oxford: Oxford Centre for Maritime Archaeology, 2011. (principal co-author).
“A millennium of rainfall, settlement and water management at Humayma, southern Jordan, c. 2,050–1,150 BP (100 BC to AD 800).” Pp. 302-24 in S Mithen, E. Black, eds., Water, Life and Civilisation: Climate, Environment and Society in the Jordan Valley. Cambridge: Cambridge University Press, 2011. (co-author).
“Ancient Harbors in the Mediterranean.” Pp. 809-33 in A. Catsambis, B. Ford, D.L. Hamilton, eds., The Oxford Handbook of Maritime Archaeology. New York: Oxford University Press, 2011. (principal co-author)
“Trajan’s Engineers and the Roman Fort at al-Humayma (Ancient Hawara), Jordan,” pp. 535-48 in Studies in the History and Archaeology of Jordan, X. Amman: Department of Antiquities, 2009.
“Testing the Waters: The Role of Sounding-Weights in Ancient Mediterranean Navigation.” Pp. 119-76 in R.L. Hohlfelder, ed., The Maritime World of Ancient Rome. Memoirs of the American Academy in Rome, Suppl. 6. Ann Arbor: University of Michigan Press, 2008.
“Social and Technological Strategies for the Design of Nabataean Water-Supply Systems in Hyper-Arid Environments.” Pp. 301-14 in E. Hermon, ed., L’eau comme patrimoine; de la Méditerranée à l’Amerique du Nord. Québec: Les Presses de L’Université Laval, 2008.
“The Roman Maritime Concrete Study: Brief Summary of Fieldwork from 2002 to 2005.” Pp. 297-304 in R.L. Hohlfelder, ed., The Maritime World of Ancient Rome. Memoirs of the American Academy in Rome, Suppl. 6. Ann Arbor: University of Michigan Press, 2008. (co-author).
“Nabataean Water Supply, Irrigation, and Agriculture.” Pp. 217-49 in K. Politis, ed., World of the Nabataeans, vol. 2. Stuttgart: Steiner Verlag, 2007.
“Nabataean Water Supply Systems: Appropriateness, Design, and Evolution.” Pp. 167-74 in Studies in the History and Archaeology of Jordan IX. Amman: Department of Antiquities 2007.
“From Nabataean King to Abbasid Caliph: The Enduring Attraction of Hawara/al-Humayma, a Multi-Cultural Site in Arabia Petraea.” Pp. 447-56 in T.E. Levy, P.M. Daviau, R.W. Younker, M. Shaer, eds. Crossing Jordan: North American Contributions to the Archaeology of Jordan. London: Equinox, 2007."
“Well-Pumps for Dummies: Was there a Roman Tradition of Popular, Sub-Literary
Engineering Manuals?” 39 pp. ms. to appear in F. Minonzio ed., Problemi
di Macchinismo in Ambito Romano. Como 2004.
“Design, Materials, and the Process of Innovation in Roman Force Pumps.” 46 pp. ms. to appear in J. Pollini, ed., Terra marique:Studies in Honor of Anna Marguerite McCann. Oxford: Oxbow Press, 2004.
“‘Romanization’ at Hawara (Humayma)? The Character of ‘Roman’ Culture at a Desert Fortress.” Pp. 353-60 in Studies in the History and Archaeology of Jordan VIII. Amman: Department of Antiquities, 2004.
“The Roman Maritime Concrete Study (ROMACONS): Fieldwork at Portus, Anzio, Santa Liberata, Cosa, 2002-2003.” Pp. 185-94 in F. Maniscalco, ed., Mediterraneum. Tutela e Valorizzazione dei beni culturali ed ambientali, vol. 4: Tutela del partimonio culturale sommerso—Protection of Underwater cultural Heritages. Naples: 2004. (Co-author).
“Nabataean Water Supply.” Pp. 39-42, 55-60 in R. Rosenthal-Heginbottom, ed., The Nabataeans in the Negev. Haifa: Hecht Museum, 2003.
“Water-Supply in Jordan,” pp. 603-14 in B. MacDonald et al. ed., The Archaeology of Jordan. Sheffield: Sheffield Academic Press, 2001.
“King, Emperor, Priest, and Caliph: Cultural Change at Hawara (Ancient al-Humayma) in the First Millennium AD,” pp. 569-580 in Studies in the History and Archaeology of Jordan, VII. Amman: Department of Antiquities, 2001.
“Irrigation,” and “Water-Lifting,” pp. 183-302 in Ö. Wikander, ed., Handbook of Ancient Water Technology. Leiden: Brill, 2000.
“Landscape and Cityscape in the Hisma: The Resources of Ancient Al-Humayma.” Pp. 175-88 in Studies in the History and Archaeology of Jordan, VI. Amman: Department of Antiquities, 1997.
“Artifactual Evidence for the History of the Harbors of Caesarea.” Pp. 359-77 in A. Raban, K.G. Holum, eds., Caesarea Maritima. A Retrospective after Two Millennia. Leiden: Brill, 1996. (co-author).
“The Origins and Design of Nabataean Water-Supply Systems.” Pp. 707-19 in Studies in the History and Archaeology of Jordan, V. Amman: Department of Antiquities, 1995.
“The Origins, Early History, and Applications of the Pyoulkos (Syringe).” Pp. 83-119 in G. Argoud, ed., Science et vie intellectuelle à Alexandrie (Ier-IIIe siècle après J.C.). Saint-Étienne, 1995. (Co-author).
“The Technology of King Herod’s Harbour.” Pp. 49-67 in R.L. Vann, ed., Caesarea Papers. Straton’s Tower, Herod’s Harbour, and Roman and Byzantine Caesarea. Journal of Roman Archaeology, Suppl. 5. Ann Arbor, 1992.
“The Water-Supply System of Ancient Auara: Preliminary Results of the Humeima Hydraulic Survey.” Pp. 269-76 in Studies in the History and Archaeology of Jordan, IV. Amman: Department of Antiquities, 1992.
“Water Works.” Pp. 883-93 in D.N. Freedman, etc., Anchor Bible Dictionary, vol. VI. New York: Doubleday, 1992.
“Aqueducts, Cisterns, and the Strategy of Water Supply at Nabataean and Roman Auara (Jordan).” Pp. 45-62 in A. Trevor Hodge, ed., Future Currents in Aqueduct Studies. Leeds: Francis Cairns, 1991.
“Eine nabatäische Talsperre in der Nähe von Humeima (das antike Auara) in Jordanien.” Pp. 65-71 in Günther Garbrecht, ed., Historische Talsperren, 2. Stuttgart: Wittwer, 1991.
“The Evolution of Harbour Engineering in the Ancient Mediterranean World.” In S. Ladstätter, F. Pirson, T. Schmidts, eds, Harbours and Harbour Cities in the Eastern Mediterranean, BYZAS, 19 (2015) 509-22.
“Greek and Roman Technology.” In Oxford Bibliographies in Classics. Ed. Dee Clayman. New York: Oxford University Press, 2014. http://www.oxfordbibliographies.com. 62 ms. pp.
“Roman Hydraulic Concrete and the Roman Maritime Concrete Study (ROMACONS): A Summary of Recent Fieldwork 2005-2007.” Acta Instituti Romani Finlandiae 128 (2011) 109-20. (co-author).
“Harena sine calce: Building Disasters, Incompetent Architects, and Construction Fraud in Ancient Rome.” Acta Instituti Romani Finlandiae 128 (2011) 9-27.
“Chemical, mineralogical and petrographic characterization of Roman ancient hydraulic concretes cores from Santa Liberata, Italy, and Caesarea Palestinae, Israel.” Periodico di Mineralogia 80 (2011) 99-120. (co-author).
“Geology, Materials, and the Design of the Roman Harbour of Soli-Pompeiopolis, Turkey: the ROMACONS field campaign of August 2009.” International Journal of Nautical Archaeology 39 (2010) 390-99. (co-author).
“A Group of Exceptionally Heavy Ancient Sounding Leads: New Data Concerning Deep-Water Navigation in the Roman Mediterranean,” Mariner’s Mirror 96 (2010) 136-48. (co-author).
“Preliminary Report of the Humayma Excavation Project, 2002, 2004-2005, The Roman Fort, Part I: Geophysical Reports, Praetorium and Horreum.” Mouseion 8 (2008) 119-58. (co-author).
“Preliminary Report of the Humayma Excavation Project, 2002, 2004-2005: The Roman Fort, Part II: Latrine, Plaster Bins/Basins, Hydraulic Probes, Weapon-Platform/Ascensus and Defensive Ditch.” Mouseion 8 (2008) 159-83. (co-author).
“The Concrete Construction of the Roman Harbours of Baiae and Portus Iulius, Italy: The ROMACONS 2006 field season,” International Journal of Nautical Archaeology 37 (2008) 374-92. (co-author).
“Preliminary Report of Excavations at al-Humayma, Ancient Hawara, 2004 and 2005.” Annual of the Department of Antiquities of Jordan 52 (2008) 309-42. (co-author).
“A Comparison of the Chemical and Engineering Characteristics of Ancient Roman Hydraulic Concrete with a Modern Reproduction of Vitruvian Hydraulic Concrete.” Archaeometry 50.4 (2008) 576-90. (co-author).
“Comment on a recent article concerning the hydraulic system of the Roman Wreck at Grado, Gorizia, Italy,” International Journal of Nautical Archaeology 36 (2007) 415-17. (Principal co-author).
“Constructing the Harbour of Caesarea Palaestina: New Evidence From the Romacons Field Campaign of October 2005,” International Journal of Nautical Archaeology 36 (2007) 409-15. (Co-author).
“Comment on a recent article concerning the hydraulic system of the Roman Wreck at Grado, Gorizia, Italy,” International Journal of Nautical Archaeology 36 (2007) 415-17. (Co-author).“Reproducing a Roman maritime structure with Vitruvian pozzolanic concrete.” Journal of Roman Archaeology 19 (2006) 29-52. (Co-author).
“The ROMACONS Project: A contribution to the historical and engineering analysis of hydraulic concrete in Roman maritime structures.” International Jounal of Nautical Archaeology 33 (2004) 199-229. (Co-author).
“Preliminary Report of the al-Humayma Excavation Project, 2000, 2002.” Annual of the Department of Antiquities of Jordan 47 (2003) 37-64. (Co-author).
“Sennacherib, Archimedes, and the Water-Screw: The Context of Invention
in the Ancient World.” Technology and Culture 44 (2003) 1-26. (Co-author).
“New Dedicatory Inscriptions from Humayma (Ancient Hawara), Jordan.” Zeitschrift für Papyrologie und Epigraphik 140 (2002) 103-21. (Co-author)
“The discovery of ancient history in the deep sea using advanced deep submergence technology,” Deep-Sea Research I.47 (2000) 1591-1620. (Co-author)
“Ancient Sounding-weights: a contribution to the history of Mediterranean navigation,” Journal of Roman Archaeology 13 (2000) 293-310.
“Preliminary Report of the al-Humayma Excavation Project, 1995, 1996, 1998,” Annual of the Department of Antiquities of Jordan 43 (1999) 411-50. (Co-author)
“Water,” and “Windmills.” In G.W. Bowersock, P. Brown, O. Grabar eds., Late Antiquity: A Guide to the Postclassical World, pp. 745-46, 748-49. Cambridge: Harvard University Press, 1999.
“Humeima.” In E. Meyers, ed., Oxford Encyclopedia of Archaeology in the Near East, vol. 3, pp. 121-22. Oxford: Oxford University Press, 1997.
“Water-Lifting Devices at Herculaneum and Pompeii in the Context of Roman Technology,” Bulletin Antieke Beschaving, Supp. (1996) 67-77.
“Preliminary Report of the Humeima Excavation Project, 1993,” Annual of the Department of Antiquities of Jordan 39 (1995) 317-54. (Co-author).
“An Ancient Lead Sounding-Weight in the National Maritime Museum,” Sefunim: Bulletin of the National Maritime Museum, Haifa 8 (1994) 29-34, pl. II.
“The Humeima Excavation Project, Jordan: Preliminary Report of the 1993 Season,” Echos du monde classique/Classical Views 13 (1994) 141-79. (Co-author).
“The Humeima Excavation Project, Jordan: Preliminary Report of the 1991-1992 Seasons,” Annual of the Department of Antiquities of Jordan 37 (1993) 461-502. (Co-author).
“The Humeima Excavation Project, Jordan: Preliminary Report of the 1992 Season,” Echos du monde classique/Classical Views 12 (1993) 123-58. (Co-author).
“The Humeima Excavation Project: Preliminary Report of the 1991 Season,” Echos du monde classique/Classical Views 11 (1992) 137-69.
“Hellenistic and Roman Elements in Nabataean Hydraulic Technology.” Pp. 473-97 in G. Argoud et al. eds., L'Eau et les Hommes en Méditerranée et en Mer Noire dans L'Antiquité. Athens: Centre de Recherches Néo-Helléniques, 1992.
“The Harbour of Caesarea Palestinae: A Case Study of Technology Transfer in the Roman Empire.” (Co-author). Pp. 387-421 in Mitteilungen, Leichtweiß-Institut für Wasserbau 117 (1992).
“The Human Side of Hellenistic and Roman Water-Lifting Technology” Pp. 359-385 in Mitteilungen, Leichtweiß-Institut für Wasserbau 117 (1992).
“The Humeima Hydraulic Survey: Preliminary Report of the 1989 Season.” Annual of the Department of Antiquities of Jordan 34 (1990) 285-311.
“The Humeima Hydraulic Survey, 1989,” Echos du monde classique/Classical
Views 9 (1990) 145-63.
“Humayma.” Pp. 270-274 in D. Homès-Frederiq, J.B. Hennessy, eds., Archaeology of Jordan, II: Field Reports (Leuven: Peeters, 1989).
“Exploration du système hydraulique de Humayma (1986-87),” Revue Biblique 96 (1989) 243-48.
“The Humayma Hydraulic Survey: Preliminary Report of the 1987 Season,” Annual, Department of Antiquities of Jordan 32 (1988) 155-69.
“Nabataean and Roman Water Use in Edom: The Humayma Hydraulic Survey, 1987,” Classical Views/Echos du monde classique 32 (1988) 117-29.
“The Technology of Roman Harbours,” International Journal of Nautical Archaeology 17 (1988) 117-29 .
Miscellaneous catalogue entries in K.G. Holum et al., King Herod’s Dream: Caesarea on the Sea (New York: Norton, 1988).
“Ancient Lead Circles and Sounding Leads from Israeli Coastal Waters,” Sefunim, Annual of the National Maritime Museum of Israel 7 (1988) 27-40.
“Technology and Society in Ancient Edom,” Transactions of the Royal Society of Canada Ser. 5, vol. 2 (1987) 163-74.
“The Humayma Hydraulic Survey: Preliminary Report of the 1986 Season,” Classical Views/Echos du monde classique 31 (1987) 263-72.
“The Humayma Hydraulic Survey: Preliminary Report of the 1986 Season,” Annual, Department of Antiquities of Jordan 30 (1986) 253-60 .
“The Water-Supply Systems of Nabataean and Roman Humayma,” Bulletin of the American Schools of Oriental Research 262 (1986) 49-76, 27 figs. (co-author) .
“Herod and Vitruvius: Preliminary Thoughts on Harbour Engineering at Sebaston, the Harbour of Caesarea Maritima.” Pp. 165-72 in A. Raban (ed.), Harbour Archaeology, British Archaeological Reports, Intl. Ser., 257 (Oxford: BAR, 1985).
“Caesarea Ancient Harbour Excavation Project, 1984 Season,” Classical Views/Echos du Monde Classique 29 (1985) 239-42, 1 fig.
“A Roman Water Mill on the Crocodilion River near Caesarea.” Zeitschrift des Deutschen Palästina-Vereins 100 (1984) 137-52.
“The Caesarea Ancient Harbor Excavation Project (C.A.H.E.P.): Preliminary Field Report on the 1989-83 Seasons,” Journal of Field Archaeology 11 (1984): 281- 305.
“Survey and Excavation at the Nabataean and Roman City of Humayma (Jordan),”Classical Views/Echos du monde classique 28 (1984) 235-48.
“The Caesarea Harbour Excavation Report.” Pp. 113-37 in Nautical Archaeology: Progress and Public Responsibility, Edited by S.B.M. Langley, R.W. Unger. (Oxford: BAR, 1984) .
“The Caesarea Ancient Harbour Excavation Project: 1982 Season,” Israel Exploration Journal 33 (1983) 119-21.
“A Roman Sheave Block from the Harbour of Caesarea Maritima (Israel),” International Journal of Nautical Archaeology 12:2 (1983) 155-7.
“Sebastos: Herod’s Harbour at Caesarea Maritima,” Biblical Archaeologist 46:3 (1983) 133-43. (Co-author)
“The Caesarea Ancient Harbour Excavation Project (C.A.H.E.P.): 1982 Season of Excavation,” Classical Views/Echos du monde classique 2:2 (1983) 159-67.
“A Bucchero Boat-Shaped Dish and Globular Aryballos in the National Maritime Museum,” Sefunim: Annual, National Maritime Museum, Israel 6 (1981) 27-33.
“An Echo of Hesiod’s Theogony vv.190-2 in Jude 13,” New Testament Studies 25 (1979) 492-503.
“Technical Aspects of Etruscan Rock-cut Tomb Architecture,” Römische Mitteilungen 85 (1978) 283-314.
“Underwater Survey and Excavation in the Port of Pyrgi (Santa Severa), 1974,” Journal of Field Archaeology 4 (1977) 297-308.
“An Unpublished Sassanian Seal, with a comment on the deportation of Armenians to Cyprus in A.D. 578,” Levant, Annual of the British School of Archaeology in Jerusalem 8 (1976) 161-4.
“A Possible Physiological Basis for the Term urinator, 'Diver',” American Journal of Philology 97 (1976) 22-9.
“Regulatory Planning and Individual Site Development in Etruscan Necropoleis,” Journal of the Society of Architectural Historians 35 (1976) 204-218.
“The Galleoti Tomb at Chiusi; the Construction Techniques of the Etruscan Barrel- Vaulted tombs,” Studi Etruschi 44 (1976) 69-85.
“A Reproduction of an Etruscan Tomb in the Parco dei Mostri at Bomarzo,” Art Bulletin 57 (1975) 410-17.
“Greek Myth and Etruscan Imagery in the Tomb of the Bulls at Tarquinia,” American Journal of Archaeology 79 (1975) 189-200.
“Underwater Excavations at the Etruscan Ports of Populonia and Pyrgi,” Journal of Field Archaeology 1 (1974) 398-402.
“The Tombs of the Caecina Family at Volterra; Some Corrections,” Latomus 33 (1974) 870-73.
“An Etruscan Satyr Mask in the Fogg Art Museum,” Harvard Studies in Classical Philology 76 (1972) 259-26.
80 book reviews, abstracts, reports.
More than 190 refereed public papers and invited lectures since 1976.
Invited lecture for the Archaeological Institute of America, Princeton chapter, “Hauarra: A Trajanic Auxiliary Fort on the Arabian Frontier in Jordan,” 12 November 2015.
Refereed paper presented at American Schools of Oriental Research Annual Meeting, Atlanta: “The Legacy and the Promise: Two Centuries of Research at Humayma,” 21 November 2015.
Refereed paper presented at American Schools of Oriental Research Annual Meeting, San Diego, “The Trajanic Auxiliary Fort at Hauarra (modern Humayma), Jordan,” 21 November 2013.
Invited lectures to the Department of Classics, Memorial University, St. John’s, “’Sand without Lime’: Building Disasters, Incompetent Architects, and Construction Fraud in Ancient Rome.” “Greek and Roman Agricultural Technology.” 2 October 2014.
Invited co-participant in presentation to CAVI, “Summer Research in the Department of Greek and Roman Studies,” 18 September 2014.
Invited paper presented to a special session for Trevor Hodge, at the Classical Association of Canada Annual Meeting, Montreal, 9 May 2014, “The Water-Supply System at Nabataean, Roman, and Modern Hawara: Local Adaptations of the Regional “Technological Shelf.”
Invited lecture to the BC Underwater Archaeology Society, Victoria, “Coring Concrete in Roman Harbours.” 9 April 2014.
Invited lecture to the Pharos Society, Vancouver, “Energy, Prime Movers, and Machines in the Ancient Greek World,” 24 February 2014.
CAC Central Canada Lecturer for 2013-14: invited lectures at Brock University, University of Western Ontario, Wilfrid Laurier University, University of Toronto, York University, Queen’s University, Carleton University, Concordia University, Université Laval, “’Sand without Lime’, Building Disasters, Incompetent Architects, and Construction Fraud in Ancient Rome.” McMaster University, “Building for Eternity: Investigating the Secrets of Roman Concrete.” Wilfrid Laurier University, “The Magical Site of Hawara, Jordan.” 28 October-8 November 2013.
Refereed paper presented at American Schools of Oriental Research Annual Meeting, Baltimore, “Where Did Roman Expertise in Maritime Hydraulic Concrete Come from?”, 22 November 2013.
Invited lecture at American Center of Oriental Research, Amman, “ ‘Sand without lime,’ Roman Building Disasters,” 21 September 2011.
Refereed paper presented to 12th International Conference on the History and Archaeology of Jordan, Berlin, Germany, “From Church to Farmhouse: The Re-use of Christian Structures in Early Islamic Humayma,” 10 May 2013.
Invited lecture to the Classical Association of Vancouver Island, “From Church to Farmhouse: The Fate of Christians and Churches in Early Islamic Humayma (Jordan),” 14 March 2013.
Invited paper to DAI—Istanbul Conference Harbours and Harbour Cities in the Eastern Mediterranean: New Discoveries and Approaches, “The Evolution of Harbour Engineering in the Ancient Mediterranean World,” 31 May 2011.
Archaeological Institute of America Norton lectures at Edmonton AL, Tucson AZ, Phoenix AZ (“ ‘Sand without lime,’ Roman Building Disasters”), 7, 12, 13 April 2011. Archaeological Institute of America Norton lectures at San Antonio TX (“Herodotus, Aristotle, and Sounding Weights”), Lubbock TX (“ ‘Sand without lime,’ Roman Building Disasters”), College Station TX (“Herodotus, Aristotle, and Sounding Weights”; “ ‘Sand without lime,’ Roman Building Disasters”), 22, 23, 24 February 2011.
Invited presentation on “the excitement of research” to the Royal Society of Canada AGM banquet, Ottawa, 27 November 2010.
Archaeological Institute of America Norton lectures at Knoxville TN (“ ‘Sand without lime,’ Roman Building Disasters”; “Herodotus, Aristotle, and Sounding Weights”), Williamsburg VA (“ ‘Sand without lime,’ Roman Building Disasters”), Baltimore MD (“Herodotus, Aristotle, and Sounding Weights”), Oxford MI (“ ‘Sand without lime,’ Roman Building Disasters”), Nashville TN (“ ‘Sand without lime,’ Roman Building Disasters”), 26, 28, 29 October, 2, 4 November 2010.
Refereed paper presented to Second International Conference on Historical Mortars, Prague, “How Did Expertise in Maritime Hydraulic Concrete Spread through the Roman Empire,” 24 September 2010.
Invited paper presented to Topoi Colloquium “Central Places in Arabia during the Hellenistic and Roman periods,” Humbold University, Berlin, “Hawara: A Case Study of the Spread of Water-supply Technology in the Nabataean Kingdom, 4 December 2009.
Invited keynote address to conference “Who Owns Underwater Cultural Heritage?” at Brock University, St. Catharines Ontario: “Herodotus, Aritotle, and Sounding Weights: The Deep Sea as a Frontier in the Classical World,” 23 October 2009.
Invited lecture to Department of Mechanical Engineering, University of Rochester, “Harena sine calce: Building Disasters, Incompetent Architects, and Construction Fraud in Ancient Rome,” 17 February 2009.
Ridgway Memorial Lecture to Archaeological Institute of American, Seattle, "Harena sine calce: Building Disasters, Incompetent Architects, and Construction Fraud in Ancient Rome." 10 October 2008.
Invited lectures to Institute of Archaeology, Oxford, “Building for Eternity: Investigating the Secrets of Roman Hydraulic Concrete,” “Herodotus, Aristotle, and Sounding Weights: The Deep Sea as a Frontier in the Classical World.” 18 and 20 February 2008.
Invited keynote address at Conference “Building Roma Aeterna”, American Academy in Rome, “Arena sine calce: Building Disasters, Incompetent Architects, and Construction Fraud in Ancient Rome.” 27 March 2008Invited lectures for the Archaeological Institute of America, “Building for Eternity: Investigating the Secrets of Roman Hydraulic Concrete,” Salem, OR, 8 November 2007. “Kings, Soldiers, Priests, and Caliphs: The magical Site of Hawara in Jordan’s Southern Desert,” Eugene, OR 7 November 2007 and Portland, OR, 9 November 2007.
Distinguished Professor's lecture, UVic, “Herodotus, Aristotle, and Sounding Weights: The Deep Sea as a Frontier in the Classical World.” 6 December 2007.Refereed poster session at Annual Meeting of the Archaeological Institute of America, San Diego: “Foundations of Empire: Research on the engineering characteristics of Roman Maritime concrete.” 5 January 2007. (Awarded First Prize).
Invited lectures for the Archaeological Institute of America, “Building for Eternity: Investigating the Secrets of Roman Hydraulic Concrete,” Lynchburg Va., 27 April 2006 and Charlottesville Va., 28 April 2006. “Kings, Soldiers, Priests, and Caliphs: The magical Site of Hawara in Jordan’s Southern Desert,” Charlottesville Va., 28 April 2006.
The 2006 Brockington Visiting Lecturer at Queen’s University: 11 October 2006, “Aristotle, Sounding Weights, and the Deep Sea: Marine Science and Ancient Navigation in the Mediterranean.” 12 October 2006: “The Foundations of Empire: New Research into the Character of Roman Hydraulic Concrete.”