[IMPORTANT FOR 



Teachers of Botany and General Biology. 





^ * 



TTaematococcus has long l>een recognized as one of tlic 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 



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, ^diior^ Torrey Botanical Club, 



; Columbia University, New York City, 



IMPORTANT TO 



fl L 



Libraries and Botanical Laboratories. 



The must important contribution to the knowledge of tlie Bryophytes of this country 

 shicc the publication of Sullivant's Icones Muscorum has recently appeared as Volume 

 Seven of the Memoirs of the Torrey Botanical CUib^ entitled^ 



The Hepaticae and Anthocerotes 



of California 



r 



H to 



J 



By MARSHALL AVERY HOWE, of Columbia University. ■ 



With Thirty-Five Heliotype Plates. 



A 



■ n 



■ ri 



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

 whicli are the finest representations of the Hepaticae 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. Trice, unbound, $3.00, postpaid. 



Address, X. 3f. UNDI^RWOOD, 



Columbia University, New York City. 



