Das Sinnesleben der Insekten: eine Sammlung von experimentellen und kritischen Studien über Insektenpsychologie Q Science
Catalogue of a stratigraphical collection of Canadian rocks prepared for the World’s Columbian Exposition, Chicago, 1893 Q Science
The solar system: a descriptive treatise upon the sun, moon, and planets, including an account of all the recent discoveries Q Science
The birds of North and Middle America : a descriptive catalogue of the higher groups, genera, species, and subspecies of birds known to occur in North America, from the Arctic lands to the Isthmus of Panama, the West Indies and other islands of the Caribbean sea, and the Galapagos Archipelago Q Science