her entire academic career at Bedford College, where in 1886, she became a demonstrator of botany. She was also the first full-time head of the geology department from 1890 to 1920, and helped form a separate geography department while still teaching a large amount of geology classes. She was also head of the botany department from 1891 to 1908 and head of the geography department from 1916 to 1920. Raisin accepted an offer of the post of Vice Principal of the college in 1898, but resigned in 1901 due to the high work load. The following year Raisin was elected a fellow of University College. She was also a member of the Geologists' Association for 67 years, one of the longest serving members. The main focus of Raisin's research was in the study of rocks using microscope petrology and mineralogy, topics in which she published 24 papers between 1887 and 1905, counting community oriented works with Bonney. The larger part of these papers were distributed in three Journals: Quarterly Journal of the Geological Society; Geological Magazine; and the Proceedings of the Geologists' Association. In particular she studied chert, serpentines, and spilites. In 1887, her first paper was read to the Geological Society of London by T.G. Bonney, since women were not allowed to present papers back then. She was seen as a leading expert on metamorphic facies; the characteristic mineral assemblages form under similar temperatures and pressures. She also worked on the microcrystalline formation of chert in Jurassic-era and published her findings in her well-known paper Proceedings of the Geologists' Association in 1903. Raisin became a fellow of the Linnean Society of London in 1906 and in 1919, after the society changed its rules to allow women, also became a fellow of the Geological Society of London at age 64. Career research Throughout her research, Catherine Raisin has worked on various projects pertaining to petrology and mineralogy. Upon her research, she focused on: The study of rocks in the Ardennes and region of Whales, analyzing the stratigraphy of rocks from the geological time scale of the Cambrian and Devonian periods. Raisin focused on rock formations as a result of slaty cleavage and over-thrust faults and foldings Research on the analysis of metamorphism pertaining to rocks in South Devon, England which resulted in findings of two distinct rock compositions (slaty cleavage and metamorphism) between South Devon and the adjacent regions The