acquainted. The Jirst part contains all that is necessary for the student 

 to know before entering upon practical botany, after which only more 

 extensive works can be read with profit. In the second part the true 

 order of Nature seems to have been arrived at. The tables of analysis 

 and arrangement of the Natural Orders are such that one can scarcely 

 fail to be led at once to the object of his search. 



The individual descriptions also seem to secure scientific accuracy 

 without that abbreviated and almost algebraic style too much in vogue 

 in elementary works. And I cannot doubt but that for your labors you 

 will receive the encouragement and thanks of both the practical botanist 

 and the beginner, to whose pleasure and profit you have so eminently 

 contributed. Very respectfully yours, 



Williams College, Oct. 1, 1847. PAUL A. CHADBOURNE. 



From Dr. A. G. Skinner, Greene Co., I-ndiana. 



I regard Wood's Botany as a work exhibiting great labor, carefal re- 

 search, illustrating the principles of botanic science in a clear, correct, 

 concise and interesting manner,- combining, in a happy degree, correct- 

 ness and fullness of description with brevity and perspicuity of language, 

 and in a manner calculated to engage the attention and memory of the 

 student in botany ; in fact, supplying a want which has long been seri- 

 ously felt by those commencing the science. 



From Horace Silsbee, A.M., Principal of Blue Hill Academy, Me. 



I have omitted no opportunity to recommend the " Class-Book of 

 Botany," and to explain its superior merits. Its scientific classifications, 

 and copious and discriminating descriptions of species are qualities 

 which not only facilitate an acquaintance with the science, but also ren- 

 der it very improving as a means of mental discipline. 



Blue Hill, Me., Jan. 28, 1848. 



Got ham, Me., Feb., 1848. 



Messrs. Crocker & Brewster — I have used Wood's Class-Book of Botany, with classes 

 pursuing that study, for two seasons. The briefest experience in conducting a class witli that 

 work, will be sufficient, I believe, to convince any one of its superiority to the school manuals 

 on the subject, previously in use. 



The first edition accomplished an important service, in the matter of guiding one from the 



airtificial to the natural system. A still more important work has been accompUshed, in the 



Tier passes to a knc 

 the natural and only philosophical system, without the machinery of tne artificial. Its descrip- 



second, in the construction of synoptical tables, by which the learner passes to a knowledge of 



lions are clear, distinguishing, sufficiently full. It is the '' Class-Book of Botany." 



EDWARD P. WESTON, Principal of Gorham Seminary. 



From Dr. Young, Slate Botanist, Bangor, Me. 

 " Wood's Botany, last edition, is the best in use ;— a very excellent work." 



F>-om Dr. S. B. Mead, Augusta, III. 



With your Class-Book I am much pleased, and would recommend it to Botanists in the 



Northern, Middle and Western States, as a valuable work, containing descriptions of all the 



plants hitherto detected in those States, in a cheap portable form. Such a work is much needed 



in the West, and I trust will have a large circulation. 



WILL BE PUBLISHED IN THE ENSUING SUMMER, 



FIRST LESSONS IN BOTANY; 



designed for Common Schools, «fcc., throughout the United States— by the author of the 

 ^ Class-Book of Botany." This little work will contain, in the form of questions and answers, 

 most of the elementary principles of Botany, expressed with as much clearness and simplicity 

 as the case will admit of It will thus be adapted to the comprehension of children at a com- 

 paratively early age, and is calculated to awaken in them habits of investigation, and an abiding 

 interest in this most delightful science. The systematic part will conduct the pupil, by easy 

 steps, to an acquaintance with the Natural System of Classification, and to the most approved 

 methods of Tabtdar Analysis. A miniature Flora, containing descriptions of some of the 

 most common and obvious plants, both native and cultivated, in the United States, is added as a 

 means for preliminary exercises in practical Botany. Thus it will be seen that this work may 

 be regarded as a stepping-stone to the " Class-Book," and others of that rank, but never as a 

 .substitute for them.— The work will be illust'ved with numerous engravings. 



