RECOMMENDATORY NOTICES. 



OPINION OF WILLIAM S. ZANTZINGER, M.D. 

 MESSRS. TURNER AND FISHER : 



The flattering reception which the previous volumes of Dr. Ruschenberger's Series have met 

 with from the public, has already proved that his efforts to diffuse a taste for the study of 

 Natural History, especially among the younger members of the community, and the means 

 elected for the purpose have been fully appreciated. Any commendation of the present number 

 of the Series, " The Elements of Botany,' 1 would therefore seem almost superfluous. 



It is certainly admirably adapted for "beginners, whether young or old," containing a large 

 amount of information in a small compass, and easy of comprehension. 



WILLIAM S. ZANTZINGER, M.D. 



Philadelphia, April 25, 1844. 



OPINION OF SAMUEL GEORGE MORTON, 

 Professor of Anatomy and Physiology, Pennsylvania Medical College. 

 MESSRS. TURNER AND FISHER: 



I have carefully examined the Elements of Botany, constituting part of Dr. Ruschenberger's 

 Series of " First Books of Natural History," and am highly pleased with the plan and details 

 of the work. It appears to combine whatever is requisite in elementary science, and is well 

 calculated to mingle pleasure and instruction in the mind of the learner. 



SAMUEL GEORGE MORTON, M.D. 



May 7, 1844. 



OPINION OF THOS. D. MUTTER, M.D. 



Professor of the Institutes and Practice of Surgery, in the Jefferson Medical College, Phila. 

 MESSRS. TURNER AND FISHER: 



Gentlemen, I have just examined the " Elements of Botany," by Dr. Ruschenberger, and 

 heartily recommend the work to the notice of all who desire information on the subject of 

 which it treats. Like the previous numbers of the Series, it fully sustains the high reputation of 

 its author. Respectfully, yours, &c. 



THOS. D. MUTTER, M.D. 



OPINION OF JOSEPH CARSON, M.D. 

 Professor of Materia Medico in the Philadelphia College of Pharmacy. 



To MESSRS. TURNER AND FISHER : 



1 have examined the " Elements of Botany," belonging to Ruschenberger's Series, and regard 

 it as the best book of the kind that has fallen under my observation. The descriptions are 

 accurate ; and, as every thing required by the learner is presented succinctly and lucidly, a full 

 knowledge of rudimentary Botany may be obtained from it. Aa a pocket volume, it will be of 

 advantage to the adept, who has occasion often to refresh his memory upon first principles. 

 Even the general reader may derive information from the account of plants employed in th 

 arts, or affording articles of luxury. Modest as is the form of this little production, it is en- 

 dowed with high merit, and cannot fail to be useful to the public, by whom it will be appreciated. 



Very sincere.,.** j. CARSON. 



Philadelphia, April 18, 1844. 



OPINION OF ROBERT BRIDGES, M.D. 



Lecturer on Chemistry. 

 MESSRS. TURNER AND FISHER: 



Gentlemen, I have read and examined somewhat in detail the " Element* of Botany," by 

 Dr. Rusck.nberger, and can state with pleasure that it is calculated to sustain the reputation 

 of the Scries of " First Books," of which it constitutes a part 



Very respectfully, yours, &c. 



ROBERT BRIDGES, 

 PUUdelphfc, April 20, 1844, 



