32 A List of 



XXV. Education as a Science. By Alexander Bain, LL.D. Fourth 



Edition. Crown 8vo,"5J. 



XXVI. The Human Species. By Professor A. de Quatrefages. Third 



Edition. Crown 8vo, 5-r. 



XXVII. Modern Chromatics. With Applications to Art and In- 

 dustry. By Ogden N. Rood. With 130 original Illustrations. 

 Second Edition. Crown 8vo, 5-y. 



XXVIII. The Crayfish : an Introduction to the Study of Zoology. By 

 Professor T. H. Huxley. With 82 Illustrations. Fourth Edition. 

 Crown 8vo, 5*. 



XXIX. The Brain as an Organ of Mind. By H. Charlton Bastian, 

 M.D. With numerous Illustrations. Third Edition. Crown 

 8vo, 5-r. 



XXX. The Atomic Theory. By Prof. Wurtz. Translated by G. 



Cleminshaw, F.C.S. Third Edition. Crown 8vo, 5*. 



XXXI. The Natural Conditions of Existence as they affect 

 Animal Life. By Karl Semper. With 2 Maps and 106 

 Woodcuts. Third Edition. Crown 8vo, 5^. 



XXXII. General Physiology of Muscles and Nerves. By Prof. 

 J. Rosenthal. Third Edition. With Illustrations. Crown 8vo, 



5*. 



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

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

 With 132 Illustrations. Crown 8vo, 5*. 



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

 Edition. Crown 8vo, 5-r. 



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

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

 Wood. Third Edition. Crown 8vo, $s. 



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

 H. Morselli. Second Edition. With Diagrams. Crown 8vo, 5*. 



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

 Illustrations. Second Edition. Crown 8vo, $s. 



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

 Edition. Crown 8vo, 5-r. 



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

 Edition. Crown 8vo, 5^. 



XL. Ants, Bees, and "Wasps : a Recorc^ of Observations on the 

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

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

 Crown 8vo, 5-r. 



