Fauna of the national parks of the United States : a preliminary survey of faunal relations in national parks Q Science
Zur Geschichte der Physik an der Iniversität Würzburg; Festrede zur Feier des dreihundert und zwölften Stiftungstages der Julius-Maximilians-Universität, gehalten am 2ten Januar 1894 Q Science
The natural history of British shells, including figures and descriptions of all the species hitherto discovered in Great Britain .. Q Science
Darwin, and after Darwin. An exposition of the Darwinian theory and a discussion of post-Darwinian questions Q Science