* BOTANY BY OBSERVATION. * 



SCIENCE PEIMER 

 OF BOTANY. 



Br J. D. HOOKER, C. B., P. K. S. 



FrLLY ILLCSTRATED. 



18mo. Flexible cloth. 



A very iDtftreating and valuable little 

 work, deaigned to supply ao element- 

 ary knowledge of the principal facts of 

 plant-life, together with the means of 

 training beginners in the way to ob- 

 serve plants methodically and accu- 

 rately. 



FIRST BOOK OF 

 BOTANY. 



By ELIZA A. YOUMANS. 



Designed to Cultivate the Observ- 

 ing and Reasoning Powers 

 of Children. 



The true objective method applied 

 to elementary scieDce-teachinp. Plants 

 themselves are the objects of stndy. 

 Tne pnpil is told very little, and from 

 the beginning throughout he is sent to 

 the plant to get bis knowledge of the 

 plant. 



DESCKIPTIVE 

 BOTANY. 



By ELIZA A. YOCMANS. 



A Practical Guide to the Classifica- 

 tion of Plants, with a 

 Popular Flora, 



Introduces the pupil to tbe study of 

 Botany by the direct observation of 

 vegetable forms. 



TMa book takes the place of the au- 

 thor's "Second Soak of Botany,^' but 

 pmMea a complete course in itself, no 

 other book being necessary. 



PHYSIOLOGICAL 

 BOTANY. 



By ROBERT BENTLEY, F. L. S., 

 Prof of Botany in King's College, Lond. 



Prepared as a Sequel to " Descrip- 

 tive Botany," by Eliza A. 

 Youmans. 



Designed to give an elementary ac- 

 count of Stmclural and Physiological 

 Botany, or of the inner and minute 

 mechanism and activities of plants. 



It treats of what the parts of a plant 

 are built up, and what functions they 

 perform in its hittory as a living being. 



HENSLOWS 



BOTANICAL CHAETS. 



Thorouahly Modified and Adapted 



for Use in the United States, 



by Eliza A. Youmans. 



Six Charts mounted on rollers, con- 

 taining nearly five hundred flgnres 

 colored to the life, which represent 

 twenty-four orders and more than forty 

 species of plants. An invaluable aid 

 in making the stndy of Botany interest- 

 ing and attractive. 



New Y9rk : D. AP]g;.ETON & CO., 1, 3, & 5 Bond Street. 



