The wild fowl of the United States and British possessions : or, The swan, geese, ducks, and mergansers of North America Q Science
Manual of geology: treating of the principles of the science with special reference to American geological history, for the use of colleges, academies, and schools of science Q Science
The New Haven mathematical colloquium. Lectures delivered before members of the American Mathematical Society in connection with the summer meeting, held September 5th to 8th, 1906, under the auspices of Yale University Q Science
