The American Science Series. 5 
Packard’s Zoology. ApvancEepD CouRsE. 
By A. S. PackarD, Professor in Brown University. viii+722 pp. 8vo. 
Designed for college classes, to be used either in the recita- 
tion-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 presented 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. 
Packard’s Zoology. Brizrer CouRSE. viii+338 pp. remo. 
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 
instructions for dissecting some one animal as a type of the 
class, and bases the study of other forms on this. 
Packard’s First Lessons in Zoology. ELemEntary 
COURSE. viiit290 pp. 12mo. 
In scope this book differs considerably from those men- 
tioned above. Since it is meant for young beginners, it de- 
scribes but few types, mostly those of the higher orders, and 
discusses their relations to one another and to their surround- 
ings. The aim, however, is the same with that of the others ; 
namely, to make clear the general principles of: the science, 
‘rather than to fill the pupil’s mind with a mass of what may 
appear to him unrelated facts. Classification is fully treated. 
