Hitchcock (1793-1864), was a noted naturalist and geologist at Amherst College and is best remembered for his pioneering studies of New England's geology and paleontology. He discovered evidence of glaciation in western Massachusetts and performed early pioneering studies in vertebrate paleontology and paleoichnology in the Triassic sandstones of Connecticut and Massachusetts. He also completed the first comprehensive geological survey of Massachusetts. Hitchcock originally published the first part of his massive study of the geology of Massachusetts, the economical portion, in 1832. The 1841 volume is the first edition of the entire compilation of his surveys. The plates are handsome lithographic renderings of scenery and geological phenomena in Massachusetts, as well as fossils. One of the plates is a large folding handcolored map of Massachusetts. The study was completed over several years and was the first detailed geological survey of a state to be carried to completion.