Early American history; history of science; intellectual history; environmental history.
The New Worlds of Thomas Robert Malthus: Rereading the Principle of Population (Princeton: Princeton University Press, 2016), Alison Bashford co-author
Ogres and Omnivores: Early American Historians and Climate History. (In William and Mary Quarterly. 72 :25-32, 2015)
Round about the Earth: Circumnavigation from Magellan to Orbit. (Fall 2012)
The Secret Lives of Plants. (In Environmental History, Vol. 10, 2005)
Subject Matter: Technology, the Body, and Science on the Anglo-American Frontier, 1500-1676. (2001)
An Anxious Pursuit: Agricultural Innovation and Modernity in the Lower South, 1730-1815. (1993)