orogeny. Career In 1889 Adams was appointed Lecturer in Geology at McGill University. He was appointed Logan Professor of Geology after the retirement of John William Dawson in 1892 and held this position until his own retirement in 1924. Though he was working full-time at McGill, he continued to spend summers in the field, financed by the GSC. In 1891 he began working on the Grenville of eastern Ontario, and by the following year had started to work on the Haliburton, Ontario area. His work there, carried out after 1896 with Alfred Barlow of the GSC, was published as a GSC Memoir in 1908, and became a classic of Canadian geology. The rocks, which included unusual alkaline rocks, were not merely mapped, but studied in detail using petrographic and chemical methods, and firm conclusions were drawn about their petrogenesis, all of which was unusual for a GSC Memoir at that time. At the same time, Adams was also studying the peculiar petrological characteristics of a group of alkaline intrusions of much later geological age (now known to be Early Cretaceous), called by him the "Monteregian Hills." This work would be continued by his students, notably Joseph Austin Bancroft (1882-1957), who succeeded Adams as Logan Professor at McGill. Inspired by his observations on the flow of metamorphosed limestones in the Grenville, Adams began a series of pioneer experimental studies of the physical properties of rocks at high pressures and temperatures, carried out in collaboration with John Thomas Nicholson, Professor of Engineering at McGill. This was well before comparable work was carried out in Germany or the United States. Though the experimental apparatus was primitive compared with that later developed at Harvard University and the Geophysical Laboratory in Washington, D.C., Adams' work was highly regarded by the newly founded Carnegie Institution for Science, which supported him financially, and attempted to persuade him to move to the Institution. Adams remained at McGill, where he served as the Dean of the Faculty of Applied Science and then as Vice-Principal to the University. He served as President of the International Geological Congress held in Toronto in 1913, and was President of the Geological Society of America in 1917. He received many honors during his career, first becoming a Fellow of the Royal Society of Canada in 1896, a Fellow of the Royal Society (of Great Britain) in 1907, a Foreign Honorary Member of the American