IMPORTANT FOR 



4 



Teachers of Botany and General Biology. 



Haematococcus has long been recognized as one of the most valuable 

 one-celled motile plants for demonstration and study with elementary 

 classes in biology. Many teachers have difficulty in finding the ma- 

 terial. A memoir on this interesting organism, by Mr. T. E. Hazen, 

 illustrated with two colored plates, has just been published in the 

 Memoirs of the Torrey Botanical Club, volume six, part three, in which 

 the entire life-history has been carefully described and figured, and 

 numerous errors of the ordinary text-books corrected. The brochure 

 is specially adapted for the use of elementary students in botany and 



1 



general biology, and can be secured for classes at special rates as noted 

 below. 



Price, 50 cents; ten copies or more by express to one address at 

 half-price. 



Address, Tt^ditor^ Torrey Botanical Cliihy 



Columbia University, New York City. 



IMPORTANT TO 



Libraries and Botanical Laboratories. 



The most important contribution to tlic knowledge of the Bryophytes of this country 

 since tlie publication of Sullivant's Icones Muscorum has recently appeared as Vohime 

 Seven of the Memoirs of the Torrey Botanical Club, entitled, 



h 



The Hepaticae and Anthocerotes 



of California 



) 



^_ 



By MARSHALL AVERY HOWE, of Columbia University. 



r 



With Thirty-Five Heliotype Plates. 



; 



J 



While this work is specifically devoted to West Coast Species, the illustrations, 

 which are the finest representations of the Ilepaticac that have yet appeared, render 

 the work of general and direct interest to all students of botany. The work should be 

 in every library consulted by botanical students. Price, unbound, $3.00, postpaid. 



I 

 I 



Address. I,. M. UNDItRWOOD, 



Cohiinbia University, New York City. 



