Comstock, J. L. Outlines of Geology: Intended as a Popular Treatise on the Most Interesting Parts of the Science. Third Edition. New York: Robinson, Pratt & Co., 1838. (190 x 120 mm) pp. 384. Engraved figures throughout. Bound in strawberry patterned black cartonnage. Some foxing and browning consistent with age and type of paper. Splitting along hinge, but firmly bound. Overall GOOD condition. John Lee Comstock’s Outlines of Geology (1838) is an introduction to the geological sciences, crafted for both students and general readers. Drawing on other scientific texts of the time, Comstock explores the most compelling aspects of geology, from rock formations to the history of the Earth, while also engaging in the 19th-century debate over whether the biblical "days" of creation represent vast geological epochs. Blending scientific inquiry with broader philosophical and theological questions, Comstock's work serves as both an educational guide and a thought-provoking discussion on the relationship between geology and religious interpretation.