Scientific Publications. 



ANTS, B£ES, ANI> WASPS. A Becord of Obserrations on the Habits of the 

 Social Hymenoptera. By Sir John Litbbock, Bart., M. P., F. E. S., etc., author 

 of "Origin of Civilization, and the PrimitiYe Condition of Man^'* etc., etc. With 

 Colored Plates. ISnio, cloth, $2.00. 

 " lliis volume contains the record of various experiments made with ants, bees, and 

 wasps during the last ton years, with a view to test ttaeir mental condition and powers 

 of sense. The principal point in which Sir John^s mode of experiment differs from 

 those of Huber, Forel, McCook, and others, is that he has careftilly watched and 

 marked particular insects, and has had their nests under observation for long periods 

 — one of his ants^ ueats haviDg been under constant inspection ever since 1874. His 

 observations are made principally upon ante because they show more power aod flexi- 

 bility of mind ; and the value of his studies is that they belong to the department of 

 original research.^^ 



" 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. As a contribution to insect 

 psychology, it will be long before this book finds a parallel." — London Aihenceum. 



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

 BiBOT, author of " Heredity," etc. Translated from the French by William 

 Huntington Smith. 12mo, cloth, $1.50. 



" M. Eibot rednces diseases of memory to law, and his treatise is of extraor- 

 dinary iateieat"—P/iUadelp/ua Press. 



"Kot merely to scientific, bnt to all thinking men, this Tolume will prove 

 intensely interesting."— iVew) York Observer. 



^'^M. Ribot has bestowed the most painstaking attention upon his theme, 

 and numerous examples of tbe conditions considered greatly increase the value 

 and interest ol the vol\ime.'*''—FhUaddphia North American. 



"To the general reader the work is made entertaining by many illnstratinnB 

 connected with snch names as LionaeuB, Newton, Sir Walter Scott, Horace Yer- 

 net, Gnstave Dorfi, and many others." — Sarrisburg TUegraph. 



"The whole subject is presented with a FrenchmaQ's vivacity of style."— 

 Providence Journal. 



**It is not too mnch to say that in no single work have so many cnrioaa 

 eases been brought together and interpreted lu a scientific majoneT.^^— Boston 

 Evening Traveller. 



MYTH AND SCIENCE. By Tito Vigmoli, tl2mb, cloth, price, $1^. 



" His book is ingenioas ; . . . his theory of how science gradually diflTeren- 

 tiated from and conquered myth is extremely well wrought out, and is probably in 

 essentials correct."— Sizfttrday Eeview. 



"The book is a strong one, and &r more interesting to the general reader than its 

 title would indicate. The learning, the acuteness, the strongreasoning power, and the 

 scientific spirit of the author, command admiration."— i^tsui xork Chrisuafi Advocate. 



** An attempt made, with much abihtv and no small measure of success, to trace the 

 origin and development of the myth. Ihe author has pursued his inquijy vrith much 

 patience and ingenuity, and has produced a very readable and luminous treatise."— 

 P/iUadelpMa North American. 



"It is a curious if not startling contribution both to psychology and to the eai-Iy 

 history of man's development." — New York World. 



For sale by aU booksellers ; or sent by mail, post'paid, on receipt qf price. 

 New York: D. APPLETON & CO., 1, 3, & 5 Bond Street. 



