A History of the Growth of the Steam-Engine

by Robert Henry Thurston

27. THE HUMAN SPECIES. By Professor A. de Quatrefages, Membre de l’Institut. $2.00.

28. THE CRAYFISH: An Introduction to the Study of Zoology. By T. H. Huxley, F. R. S. With 82 Illustrations. $1.75.

29. THE ATOMIC THEORY. By Professor A. Wurtz. Translated by E. Cleminshaw, F. C. S. $1.50.

30. ANIMAL LIFE AS AFFECTED BY THE NATURAL CONDITIONS OF EXISTENCE. By Karl Semper. With 2 Maps and 106 Woodcuts. $2.00.

31. SIGHT: An Exposition of the Principles of Monocular and Binocular Vision. By Joseph Le Conte, LL. D. With 132 Illustrations. $1.50.

32. GENERAL PHYSIOLOGY OF MUSCLES AND NERVES. By Professor J. Rosenthal. With 75 Illustrations. $1.50.

33. [ILLUSIONS: A Psychological Study]. By James Sully. $1.50.

34. THE SUN. By C. A. Young, Professor of Astronomy in the College of New Jersey. With numerous Illustrations. $2.00.

35. VOLCANOES: What they Are and what they Teach. By John W. Judd, F. R. S., Professor of Geology in the Royal School of Mines. With 96 Illustrations. $2.00.

36. SUICIDE: An Essay in Comparative Moral Statistics. By Henry Morselli, M. D., Professor of Psychological Medicine, Royal University, Turin. $1.75.