Describir: An elementary treatise on mineralogy and geology, designed for the use of pupils,- for persons, attending lectures on these subjects,- and as a companion for travellers in the United States of America. Illustrated by six plates / by Parker Cleaveland, professor of mathematics and natural philosophy, and lecturer on chemistry and mineralogy, in Bowdoin College; fellow of the American Academy; member of the American Philosophical Society; of the American Geological Society; corresponding member of the Linnaean Society of New England; of the Academy of Natural Sciences of Philadelphia; honory member of the Lyceum of Natural history of New York; member of the wernerian Natural History Society of Edinburgh; of the Geological Society of London; fellow of the Mineralogical Society of Jena; of the Mineralogical Society of Dresden, &c.