Geology began at Union in 1809 when Thomas Brownell was hired to teach a course in mineralogy. At that time mineralogy was closely allied to chemistry, which was also under his purview. Much of the search for new chemical elements at that time was focused on exotic minerals of unusual composition. Brownell was dispatched to Europe to study and to purchase specimens, instructional aids, and apparatus for teaching the new courses. During the following ten years he added to the mineral collection through his own efforts in the field and donations from alumni and others. When he left to become Bishop of Connecticut the collection, for which he had maintained a partial catalogue, numbered about 2000 specimens.
Joel Nott, one of Eliphalet’s sons, was added to the faculty about 1820. He took over teaching mineralogy and chemistry upon Brownell’s departure. His close association with geology is evidenced by his inclusion in an expedition to the Michigan Territory in 1821.
The records concerning geological instruction are sparse during the late 1820’s and early ’30’s. Joel Nott seems to have left the college during that time. His brother, John Nott, may have been involved in teaching geological subjects as one of the faculty in Natural Philosophy, but this cannot readily be determined. Geology during the nineteenth century was typically included in the broader field of natural history and at Union College the professor of natural history normally would teach botany, zoology, and geological subjects. Mineralogy, however, was taught by a chemist, at least until the latter part of the century.
In 1834 Benjamin F. Joslin is listed as a professor of natural philosophy, a position he held until at least 1838, but he appears to have been mostly, if not exclusively concerned with biological instruction. Mineralogy was almost certainly taught in 1833-36 by Chester Averill, an adjunct professor of chemistry and languages, and he was apparently replaced in 1836 by Edward Savage, an assistant professor of languages and chemistry.
Chester Averill died of tuberculosis in 1836, leaving a wife and infant son, Chester Jr.. The younger Averill completed a degree at Union in 1857. He subsequently became a member of the first Geological Survey of California, headed by Josiah Whitney (after whom Mt. Whitney was named). Whitney clearly had an association with Union College, as curator of the college mineral collection, and as an advisor to Eliphalet Nott concerning Nott’s investment in the Bristol Mines in Connecticut. That venture was a financial disaster, but apparently not to the detriment of Whitney’s relationship with Nott, for Eliphalet wrote an enthusiastic letter supporting Whitney’s candidacy for the directorship of the California Geological Survey.
Edward Savage, of whom little record remains, left the college in 1839, to be replaced by Jonathan Pearson, as assistant professor of natural philosophy and chemistry. Pearson is well known for the diary he kept through most of his considerable time at the college, but he was also of great importance as the curator of the college museum, including the mineral collection.
Starting around 1840 geology became a part of the curricular offering, along with mineralogy, and separate textbooks were used for geology and mineralogy. The advent of a curriculum in engineering in 1845 added a strong practical element, to which geology no doubt contributed through study of ore minerals, mining and metallurgy. In the college catalogue of 1852 a Botany and Mineralogy Department is mentioned for the first time, likely a reflection of Pearson’s main interests. The curriculum and structure of the college was apparently quite fluid throughout most of the latter half of the century, with course offerings and departmental designations appearing and disappearing from year to year. However, mineralogy remained an important part of the Science Course, as reflected in descriptions of Analytical Chemistry from the college bulletin: “When [the student] has in this manner acquired sufficient confidence in his skill, he can proceed to the actual Analysis of Minerals, Soils, Manures, (etc.)” and “Mineralogists will have access to the College [mineral] Cabinet, and can also take a full course with the blowpipe, and in Qualitative and Quantitative Analysis.”
In 1858, the Wheatley Collection was purchased by Edward Delavan and donated to the college. This important collection has been the core of the departmental collections (described elsewhere) ever since. The close connection between chemistry and mineralogy continued with the addition of the Wheatley collection, and Charles Chandler (appointed to the faculty in 1857 as an assistant professor of analytical chemistry) became curator of the museum. In 1865 Maurice Perkins took over from Chandler, including duties as museum curator.
Harrison Webster (’62) joined the faculty as a tutor in Natural History in 1868, and soon advanced to a regular faculty position. His responsibility for geology is evidenced by his later assumption of a professorship of geology and natural history at the University of Rochester. Webster was a major actor in the faculty movement opposing President Potter during this time and he left the college for Rochester in 1883. His replacement was another alumnus, James Stoller (’84), first as a tutor then as a professor. Stoller’s duties increased with the retirement of Jonathon Pearson in 1885. Webster returned to the College as its president in 1888 (the first non-clergy to hold that position) and he again taught in the department of biology and geology.
The first full-fledged geologist at Union College was added to the faculty in 1894 in the person of Charles S. Prosser, who as acting Professor of Geology was responsible for the department of Geology and Paleontology. At this point there was a fairly complete curriculum in geology: Geology, Historical Geology, Paleontology, Economic Geology, Areal Geology, Field Geology, and Mineralogy and Lithology. The Wheatley Collection had become part of the Geology Department in 1890, and during his brief stay at the college (until 1899), Prosser put considerable effort into rehabilitating and adding to the collection, especially with paleontologic specimens. Prosser’s ambitions for a strong geology department appear to have initially received some support from the trustees and administration of the college, but apparently not to his satisfaction. He left for Ohio State where he soon became chair of the geology department.