34 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. 5-r. 



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

 Edition. 5^. 



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

 By Professor J. W. Judd, F.R.S. With 92 Illustrations on 

 Wood. Third Edition. $s. 



XXXVI. Suicide : an Essay on Comparative Moral Statistics. By Prof. 

 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. Second 

 Edition. 5-r. 



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

 Edition. 5-y. 



XL. Ants, Bees, and Wasp3 : a Record of Observations on the 

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

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



5t* 



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

 Third Edition. 5*. 



XLII. The Concepts and Theories of Modern Physics. By 

 J. B. Stallo. Third Edition. 5^. 



XLIII. Diseases of the Memory ", An Essay in the Positive Psycho- 

 logy. By Prof. Th. Ribot. Second Edition. 5*. 



XLIV. Man before Metals. By N. Joly, with 148 Illustrations. 

 . Third Edition. 5*. 



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

 Edition. $s. 



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

 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. $s. 



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



Alfred Sidgwick. 5^. 

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



5*- 

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



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



Illustrations. $s. 



