Seientifie Publications. 
ANTS, BEES, AND WASPS. A Record of Observations on the Habits of the 
Social Hymenoptera, By Sir Joun Lvusxoos, Bart., M. P., F.R.8., ete., author 
of “Origin of Civilization, and the Primitive Condition of Man,” etc., ete. With 
Colored Plates. 12mo, cloth, $2.00. 
“This volume contains the record of various experiments made with ants, bees, and 
wasps during the last ten years, with a view to test their mental condition and powers 
of sense. The priscipal point in which sir John’s mode of experiment differs from 
those of Huber, Forel, MeCook, and others, is that he has carefully watched and 
marked particular insects, and has had their nesta undcr observation for long periods 
—one of his ants’ nests having been under constant inspection ever since 1874. His 
observations are made principally upon ants because they show more power and flexi- 
bility of mind; and the value of his studies is that they belong to the department of 
original research.” 7 
We have no hesitation in saying that the author has presented us with the most 
valuable series of observations on a special subject that has ever been produced, charm- 
ingly written, full of logical deductions, and, when we consider his multitudinous en- 
gagements, a remarkable illustration of economy of time. Asa contribution to insect 
psychology, {4 will be long before this book finds a parallel."—London Atheneum. 
DISEASES OF MEMORY: An Essay in the Positive Psychology. By Ta 
Rigor, author of “Heredity,” ete Translated from the French by William 
Huntington Smith. 12mo, cloth, $1.50. 
_“M. Ribot reduces diseases of memory to law, and his treatise is of extraor- 
dinary interest.""—Philadelphia Prese. 
“Not merely to scientific, but to all thinking men, this volume will prove 
intensely interesting."—New York Observer. 
“M. Ribot has bestowed the most painstaking attention upon his theme, 
and numerous examples of the conditions considered greatly increase the value 
and interest ot the volume.” — Philadelphia North American. 
“To the general reader the work is made entertaining by many illustrations 
connected-with such names as Linueus, Newton, Sir Walter Scott, Horace Ver- 
net, Guatave Doré, and many others.”"—Harrisburg Telegraph. 
“The whole subject is pri ted with a Frenchman's vivacity of style."— 
Providence Journal. 
“Tt is not too much to say that in no single work have so many curious 
eases been brought together and interpreted in a scientific manner.” —Boston 
Hvening Traveller. 
MYTH AND SCIENCE. By Trro Vicnout. 12mo, cloth, price, $1.50. 
oun book Ly ingentons} = his fosar of nee science gradually differen- 
‘jated from and conquered myth is extremely well wrought out, and i i 
esscntials corrent, "= Saturday Review. sl a sain 
“The book is a strong one, and far more interesting to the general reader than its 
title would indicate. The learning, the acuteness, the strong reasoning power, and the 
scientific spirit of the author, command admiration."—New York Christian Advocate. 
“An attempt made, with much ability and no small measure of success, to trace the 
a and development of the my fs the author has pursued his inquiry with much 
enc genuity, and has produced a very readable and i ise."— 
Philadelphia North American. P i ra sass cans 
“It is a corious if not startling contribution both t ¥ 
kistory of man’s developmen meow York World. a ae ia 
For sale by all booksellers ; or sent by mail, post-paid, on receipt of price. 
New York: D. APPLETON & CO., 1, 3, & 5 Bond Street. 
