SCIENCE 



New Series. 



Vol. VIII. No. 187. 



Feiday, July 29, 1898. 



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The Nature and Development of Animal Intelligence 



By Wesley Mills, M,D., D.V.S., F.R.S.C. 



Professor of Physiology in McGill University, Montreal 



Jut!u,r of "A7iimal Physiology," There are chapters on hiberna- 



The subject is approached from "Comparative Physiology," "The ^'""^ ''"'^ ''^^''"^ ^^"^"^ ^^"^ ^'^^ 



the point of view of comparative ^^^ .^^ ^^^^^^ ^^^^ ^ .^^^^_ , , psychological standpoint, also on 



psychology. the physical correlation to psychic 



Cloth, 8vo. Price, $2.00. development. 



ON MATHEMATICS /i^ PBEPABATION. 



Infinitesimal Analysis. By wm. b. smith 



The volume treats rather fully and in a modern spirit the Elementary Theory and Applications of the 

 ■Calculus, so as to meet the wants of undergraduates in general, while fitting and stimulating the few to pass 

 ■on into differential Equations and the Theory of Functions. More than usual attention has been given to 

 Hyperbolic Functions, Maxima and Minima, Operators, Tortuous Curves, Partial Derivatives, Multiple Inte- 

 gration, Jaoobians, Gamma Functions, etc. The author will be remembered as having been for some years 

 Professor of Mathematics in the University of Missouri and at Tulane University of New Orleans. A few 

 years ago he prepared for the use 

 of students in his classes a work 

 of which another teacher of math- 

 ematics, at that time in one of the 

 New York State Normal Schools, 

 wrote. 



" Its chief merit is tiiat it gives not 

 only linowledge, but ttie significance 

 of knowledge, hence its glow and 

 inspiration." 



— Missouri School Journal. 



The aim in the new volume is 

 to enable the student of the Cal- 

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 a modern spirit and to acquire all 

 the necessary equipment for the 

 study of the higher Theory. 



IN PBEPABATION. 



Elementary Theory of Functions 



By' James Harkness and Frank Morley 



The authors are already known 

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 on the Theory of Functions " for 

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 theoretical mathematics. 



BY THE SAME AUTHORS. 



A Treatise on 



The Theory of Functions 



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 for those who wish to acquire 

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 ject as is necessary for the pursu- 

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