The International Sdentifle 5«n«s.— (Continued.) 3 



88. THE CONCEPTS AND THEORIES OP MODERN PHYSICS. By J. B. 

 Stalio. $1.75. 



39. THE BRAIN AOT) ITS FUNCTIONS. By J. Luts, Hospice SalpStriSre, 



Paris. "With 6 Illustrations. $1.50. 



40. MYTH AND SCIENOE. By Tito Vihholi. $1.50. 



41. DISEASES OF MEMORY : An Essay in the Positive Psychology. By Tn. 



RiBOT, author of " Heredity." $1.50. 



42. ANTS, BEES, AND WASPS. A Record ol Observations of the Habits of 



the Social Hymenoptera. By Sir John Ltibbook, Bart., F. R. S., etc. $2.00. 



43. THE SCIENCE OF POLITICS. By Professor Sheldon Amos. $1.75. 



44. ANIMAL INTELLIGENCE. By Geobge J. Romanes, M. D., F. R. S. $1.75. 



45. MAN BEFORE METALS. By Professor N. Jolt, Science Faculty of Tou- 



louse. With 148 niustrations. $1.75. 

 48. THE ORGANS OF SPEECH AND THEIR APPLICATION IN THE 

 FORMATION OF ARTICULATE SOUNDS. By Professor G. H. ton 

 Meteb, University of Zurich. With 47 Illustrations. $1.75. 



4?. FALLACIES ; A View of Logic from the Practical Side. By Alpbed 

 SiDOWiCK, B. A., Oxon. $1.75. 



48. ORIGIN OF CULTIVATED PLANTS. By Alphonse de Candollb. $2.00. 



49. JELLY-FISH, STAR-FISH, AND SEA-URCHINS. A Research on Primi- 



tive Nervous Systems. By Geobge J. Romanes, M. D., F. R. S. With 63 

 niustrations. $1.75. 



50. THE COMMON SENSE OP THE EXACT SCIENCES. By William Kmo- 



DON Cliepoed. With 100 Figures. $1.50. 



51. PHYSICAL EXPRESSION : Its Modes and Principles. By Pbancis Wak- 



NBB, M.D., Assistant Physician, London Hospital. With 51 niustrations 

 $1.75. 



52. ANTHROPOID APES. By Professor Robekt Habtmann University of 



Berlin. With 63 Illustrations. $1.75. 



53. THE MAMMALIA IN THEIR RELATION TO PRIMEVAL TIMES. By 



Professor OscAB Schmidt, University of Strasburg. With 61 niustrations. 

 $1.50. 



54. COMPARATIVE LITERATURE. By Professor H. M. Posnett, M. A., Uni- 



versity College, Auckland. $1.75. 



55. EARTHQUAKES AND OTHER EARTH MOVEMENTS. By Prof essor John 



Milne, Imperial College of Engineering, Tokio. With 38 Figures. $1.75. 



56. MICROBES, FERMENTS, AND MOULDS. By E. L. TEOtrEssABT. With 



107 niustrations. $1.50. 



57. THE GEOGRAPHICAL AND GEOLOGICAL DISTRIBUTION OF ANI- 



MALS. By Professor Angelo Heilpein, Academy of Natural Sciences, 

 Philadelphia. $2.00. 



58. WEATHER. A Popular Exposition of the Nature of Weather Changes from 



Day to Day. With 96 Diagrams. By Hon. Ralph Abbeceombt. $1,75. 



