The Mammals of Colorado: An Account of the Several Species Found Within the Boundaries of the State, Together with a Record of Their Habits and of Their Distribution . By Edward Royal Warren, S.B., Director of the Museum of Colorado College. With three maps and a full series of illustrations reproduced from photographs taken from nature. New York and London, G. P. Putnam's Sons. The Knickerbocker Press. 1910. 12mo, pp. xxxiv + 300, 3 maps and 84 text-cuts. $3.50.