50 A List of 



XXXIII. Sight : an Exposition of the Principles of Monocular and 

 Binocular Vision. By Joseph le Conte, LL.D. Second Edition. 

 With 132 Illustrations. $s. 



XXXIV. Illusions : a Psychological Study. By James Sully. Third 

 Edition. $s. 



XXXV. Volcanoes : what they are and what they teach. 

 By Professor J. W. Judd, F.R.S. With 96 Illustrations on 

 Wood. Fourth Edition. $s. 



XXXVI. Suicide : an Essay on Comparative Moral Statistics. By Pro- 

 fessor H. Morselli. Second Edition. With Diagrams. 5^. 



XXXVII. The Brain and its Functions. By J. Luys. With 

 Illustrations. Second Edition. $s. 



XXXVIII. Myth and Science : an Essay. By Tito Vignoli. Third 

 Edition. With Supplementary Note. 5.5-. 



XXXIX. The Sun. By Professor Young. With Illustrations. Third 

 Edition. 5*. 



XL. Ants, Bees, and 'Wasps : a Record of Observations on the 

 Habits of the Social Hymenoptera. By Sir John Lubbock, Bart., 

 M.P. With 5 Chromo-lithographic Illustrations. Ninth Edition. 



5*. 



XLI. Animal Intelligence. By G. J. Romanes, LL.D., F.R.S. 



Fourth Edition. $s. 



XLII. The Concepts and Theories of Modern Physics. By 

 J. B. Stallo. Third Edition. 5*. 



XLIII. Diseases of Memory : an Essay in the Positive Psychology. 

 By Professor Th. Ribot. Third Edition. 5*. 



XLIV. Man before Metals. By N. Joly. With 148 Illustrations. 

 Fourth Edition. $s. 



XLV. The Science of Politics. By Professor Sheldon Amos. Third 

 Edition. 5-r. 



XLVI. Elementary Meteorology. By Robert H. Scott. Fourth 

 Edition. With numerous Illustrations. $s. 



XLVII. The Organs of Speech and their Application in the 

 Formation of Articulate Sounds. By Georg Hermann 

 Von Meyer. With 47 Woodcuts. 5*. 



XLVIII, Fallacies. A View of Logic from the Practical Side. By 

 Alfred Sidgwick. Second Edition. 5.$-. 



XLIX. Origin of Cultivated Plants. By Alphonse de Candollc. 

 Second Edition. $s. 



L. Jelly-Fish, Star-Fish, and Sea-Urchins. Being a Research 

 on Primitive Nervous Systems. By G. J. Romanes. With 

 Illustrations. 5-y. 



