A Model BoLanical TexL-Book 



LEAVITT'S OUTLINES OF BOTANY, $1.00 



With Cray's Field, Forest and Garden Flora, . 1 .80 



With Gray's Manual of Botany, .... 2.25 



For the High School Laboratory and Class Room. 



By ROHERT (IRKENLEAF LEAVITT, A. M., of the Ames 

 Botanical Laboratory. I'repared at the request of the Botan- 

 ical Department of Harvard University. 



THE practical exercises and experiments have l)een so chosen that they 

 may be performed by schools with even simple apparatus. The in- 

 structions for laboratory study are placed in divisions by themselves, 

 preceding the related chapters of descri|)iive text. The book combines the 

 best features of the newest methods with that lucidity and definiteness which 

 have given Dr. Gray's text-books their extraordinary success. It pays special 

 attention to ecology, but morjjhology and physiology are also fully treated. 

 Tlie illustrations number 384, and have been drawn with great care and 

 accuracy. The appendix contains valual)le suggestions for the teacher, and 

 the index is very comjilete., 



American Book Company 



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PSYCHE 



A JOURNAL OF ENTOMOLOGY 

 Established in 1874 



Pu])lisl)es technical pajjers by recognized authorities, and]K)]Mdar articles 

 characterized by high scieniific accuracy, giving particular attention to ex- 

 l)erimental work. A synopsis of current entomological literature appears in 

 each number. Much space is given to problems connected with the insect 

 fauna of New England. 



Six Numbers a year: — February, A])iil, June, .\ugust, ( tctober, Decem- 

 ber. Annual subscription ( )ne Dollar. 

 CAMliRtDCK. Eniomoi.ouicai. ( itui, 234 Berkeley St., Boston, l" . S. .A. 



THE PLANT WORLD, 



An Illustrated Monthly Magazine of Popular Botany. 



$1.00 a year. Established 1897 12 numbers 



Official Organ of the Wild Flower Preservation Society of America. 

 If you are interested in Botany the PI.,\NT WORLD will interest you. 

 If you are a teacher of Botany, the PLANT WORLD will hel|) you 

 by keeping you in touch with modern botanical thought. 

 Edited by Francis E. Lloyd 



Teachers College, Columbia University, 

 Send two cent stamji for sami)le copy. New York City. 



