OPINION OF THE PUBLIC PRESS. 



" Such a little treatise is just the thing for our schools and academies and 

 no time should be lost in introducing it." New York Mirror. 



" This is a most excellent work, and we would most respectfully recom- 

 mend it to our common school tru tees, as worthy of introduction into the 

 temples of learning under their supervision." New York New Era. 



"The plan and arrangement of the work are admirable, and eminently 

 calculated to facilitate the progress of the pupil. We recommend it to 

 teachers and he;ids of families." Philadelphia Sat. Chronicle. 



" We know of no books better calculated to convey elementary instruction 

 than these, and heart.ly recommend those which have appeared." Brothet 

 Jonathan. 



"We cannot too earnestly recommend it to public attention." Cincinnati 

 Enquirer. 



" Decidedly one of the best elementary works on the subject with which 

 we have ever met." New York Lancet. 



"The information it contains is at once lucid, intelligible, and satisfactory; 

 it forms an excellent text-book for classes in schools, and cannot fail to 

 infuse into the young mind a knowledge and love of Natural History. It 

 is concise ;md comprehensive, and must if adopted iu seminaries of learning 

 be exceedingly useful in inculcating a correct knowledge of the elements o 

 Zoology. The plan is excellent, and must be found eminently useful." 

 Alexandria Gazette. 



" It is one of the most valuable works of the kind we have erer read. 

 Such are the books we like to see disseminated among the people." Neu> 

 Orleans American. 



"The reputation of the author is a guarantee that the work is a good one. 

 On examination we find it to be so. It is an ad nirable compend of the 

 subjects of which it treats: we should think, indeed, that it would attract 

 the attention of teachers, both from its cheapness, and the admirable manner 

 in which it is arranged." Cincinnati Gazette. 



" The Second Book: this number treats of all animals that in infancy 

 feed on the milk of their mothers; from the human being down to the mus- 

 quito-catching bat. Like the " First Book," it is divided into questions and 

 answers, and a glossary ; and is illustrated by six plates. It is as cheap as 

 dirt ; and contains an abundance of useful information. There are thousands 

 of persons in this country, and millions in Europe, who do not know that 

 whales give milk." New York Era. 



"We do not know a more useful set than this promises to be: and IS." 

 New York Aurora. 



" We hesitate not to say that it is a valuab'e work, and fully entitled to 

 the high encomiums bestowed upon it; taken as a whole the work may be 

 justly regarded as invaluable to schools." New York Standard. 



" It is a most valuable work, and one which we believe has no superior in 

 our seminaries, we know of nothing equal to it. It is very flatteringly 

 recommended by the most distinguished men in France and in the United 

 States, and deserves it." New York Courier and Enquirer. 



Ruschenberger's Second-Book of Natural History. "This is another 01 

 those useful volumes, which Dr. Ruschenbeiger is so beneficially in editing. 

 His former volume has already been received into some of our public school, 

 nnd we hope both it and the present may find ihur way into all." American 

 Medical Intelligencer. 



The present work, is in our opinion quite a desideratum, and abounds 

 with information of the most useful and, at the same time, most necessary 

 character, every parent should place it in the hands of his children, and no 

 public instructor should neglect to give it a place in his academy. Phil* 

 delphia Spirit of the Times. 6 



