4 THE AMERICAN SCIENCE SERIES. 



ZOOLOGY. By A. S. PACKARD, Professor in Brown Univer- 

 sity. 

 Advanced Course. Large I2mo. Pp. 719. $3.00. 



Designed to be used either in the recitation-room or in the 

 laboratory. It will serve as a guide to the student who, with a 

 desire to get at first-hand a general knowledge of the structure 

 of leading types of life, examines living animals, watches their 

 movements and habits, and finally dissects them. He is pre- 

 sented first with the facts, and led to a thorough knowledge 

 of a few typical forms, then taught to compare these with 

 others, and finally led to the principles or inductions growing 

 out of the facts. 



From A. E. VERRILL, Professor of Zoology in Yale College : ' ' The 

 general treatment of the subject is good, and the descriptions of 

 structure and the definitions of groups are, for the most part, clear, 

 concise, and not so much overburdened by technical terms as in sev- 

 eral other manuals of structural zoology now in use." 



Briefer Course. i2mo. Pp. 334. $1.40. 



The distinctive characteristic of this book is its use of the 

 object method. The author would have the pupils first examine 

 and roughly dissect a fish, in order to attain some notion of 

 vertebrate structure as a basis of comparison. Beginning then 

 with the lowest forms, he leads the pupil through the whole 

 animal kingdom until man is reached. As each of its great 

 divisions comes under observation, he gives detailed instruc- 

 tions for dissecting some one animal as a type of the class, and 

 bases the study of other forms on the knowledge thus obtained. 



From HERBERT OSBORN, Professor of Zoology, Iowa Agricultural 

 College : " I can gladly recommend it to any one desiring a work of 

 such character. While I strongly insist that students should study 

 animals from the animals themselves, a point strongly urged by 

 Prof. Packard in his preface, I also recognize the necessity of a 

 reliable text-book as a guide. As such a guide, and covering the 

 ground it does, I know of nothing better than Packard's." 



From D. M. FISK, Professor of Natural History, Hillsdale College : 

 " The 'Briefer Courses ' of Packard and Martin have been adopted, 

 and for these reasons : I. They are brief ; the lessened mechanical 

 labor of mastering a text leaves time for more observation and for 

 comparison of authorities. 2. They are clear ; the work of cutting 

 away needless nomenclature has been done with skill. 3. They are 

 authoritative ; serious students can have confidence in even brief and 

 dogmatic statements, knowing they come from a master, and not from 

 a mere compiler. 4. Thev are fresh ; fossils are good in their places, 

 but a fossil text-book in science is a fraud on youth." 



