PRINCIPLES OF ZOOLOGY NOTICES OF THE PKESS. 



" The announcement of this work some time ago, as being in a course of 

 preparation, excited 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 eye, and for the use of 

 students. As it has no rival, we suppose its adoption will be almost univer- 

 sal 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 work is designed as a text book for schools and colleges, and as 

 an exposition of the interesting science of which it treats, it has many ob- 

 vious advantages over any other treatise extant. It is the joint production 

 of two gentlemen, whose researches in natural history have enlarged the 

 domain'of human knowledge, and one of whom stands confessedly at the 

 head of the science of the age. It hence contains the latest and most 

 approved classifications, with explanations and illustrations borrowed from 

 the forms of animated nature, both living and extinct, and made accurate 

 and perfect by the fullest acquaintance with the present condition of zoo- 

 logical science. As a text book it is admirably conceived. 



" The presence of Prof Agassiz in the United States, has given a new 

 impulse to every branch of natural history, and we are happy to find him 

 thus associated with Dr. Gould, one of our leading American naturalists, 

 in explaining his favorite science to the youth of our schools and colleges." 

 Providence Journal. 



"No such work had previously appeared in our country. The produc- 

 tion is worthy of the great names under whose care it has been prepared. 

 Prof. Agassiz has a world-wide reputation, and Dr. Gould is regarded by the 

 scientific men of Europe as the most eminent naturalist of our country. 

 Schools and Academies will find it opens up a new and attractive study 

 for the young, and in no country is there a finer field opened up to the 

 naturalist than in our own." Cliristian Alliance, Boston. 



" Anew 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. 



" This is entirely a new field in American elementary literature, no simi- 

 lar treatise existing in this country. At fii'st sight, the work appeared to 

 us too abstruse for beginners, and" for the iise of those whom the author 

 aims to benefit the scholars in our common schools. A more careful 

 examination convinces us that any teacher or scholar, who is in earnest to 

 understand the subject, will find the application necessary at the commence- 

 ment comparatively trifling, while the subsequent benefit will be immense. 

 This is the first volume of the woi'k, and is devoted to Comparative Physi- 

 ology, 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. 



