PRINCIPLES OF ZOOLOGY. 



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"A new and highly valuable publication, intended for a school book, but which will 



be found equally interesting and important for all to study Such a work as this 



has long been a great desideratum, and we rejoice that a want so strongly felt, has now, 

 at length, been so well and so completely supplied." Boston Atlas. 



" The work is admirably adapted to the use of schools and colleges, and ought to be 

 made a study in all our higher seminaries, both male and female."- New- Tor k Observer. 



" To the testimony which is furnished by their distinguished 

 scholarship, we may add, however, that the classifications of the 

 work are so admirably arranged, and its des- 

 criptions given with so much simplicity and 

 clearness of language, that the book cannot 

 fail of its practical aim to facilitate the pro- 

 gress of the beginning student. It is a work 

 for schools." New-York Recorder. 



" The announcement of this work some time 

 ago, as being in a course of preparation, ex- 

 cited a high degree of interest among teachers, 

 students, and the friends of science. The names 

 of its authors gave ample assurance that it was no compilation drawn from other works 

 no mere reconstruction of existing materials. The work will undoubtedly meet the 

 expectations that have been formed of it, and already it has been adopted as a text-book 

 in several colleges. ' It breaks new ground; as is said in the preface, 'some of its topics 

 have not been touched upon in the language, unless in a strictly technical form, and in 

 scattered articles.' The volume exhibits throughout great labor and care in preparing it 

 for the public eve, and for the use of students. As it has no rival, we suppose its adop- 

 tion will be almost universal in literary institutions, and it will do much to awaken in the 

 minds of multitudes an enthusiastic love of natural history." Christian Reflector $ 

 Watchman. 



" This is entirely a new field in Arnei-i- 



can elementary literature, no similar 



treatise existing in this country- At first 



sight, the work appeared to us too ab- 

 struse for beginners, and for the use of 



f hose whom the authors aim to benefit 



the scholars in our common schools. A 



more careful examination convinces us 



that any teacher or scholar, who is in 



eai-nest to understand the subject, will 

 find the application necessary at the com- 

 mencement comparatively trifling, while the subsequent benefit will be immense. This 

 is tiie first volume of the work, and is devoted to Comparative Physiology, on which branch 

 it is exceedingly complete. It is freely illustrated with the necessary wood cuts. The 

 names of the authors will be a higher guarantee for scientific accuracy than any judgment 

 we might pronounce." New- York Commercial Advertiser. 



" It is designed chiefly for the use of schools and colleges, and as an epitome of the 

 subject on which it treats, contains more in a small space, than any book of the kind that 

 has yet fallen under our notice." Saturday Gleaner, Philadelphia. 



