248 



to use the common method of adding a toxic to a non-toxic 

 substance and judging the penetration of the former by the 

 plasmolytic action of the mixture." Among other of Osterhout's 

 conclusions is the proteid (and not lipoid) nature of the cell 

 membrane. 



W. H. Blanchard, who has described more than forty species 

 and forms of Ruhus during the last few years, writes in the Sep- 

 tember Bulletin thus: "I venture to say and say with confi- 

 dence, that eight species include the great bulk of our blackberries, 

 perhaps ninety per cent, of them." 



NEWS ITEMS 



Dr. Bradley M. Davis, formerly of Cambridge, Mass., has 

 been appointed assistant professor of botany at the University 

 of Pennsylvania. 



We learn from the Evening Sun (Oct. 19) of the resignation of 

 Dr. M. T. Cook as plant pathologist for the State of Delaware 

 and Delaware College, to accept a similar position with the 

 State of New Jersey and Rutgers College. 



Dr. N. L. Britton was the host at a dinner given on October 

 23, 191 1, in honor of Professors W. L. Johannsen, R. H. Harper, 

 W. G. Marquette and Mr. A. B. Stout. The staffs of the 

 Columbia University, Barnard College, College of the City of 

 New York, Normal College, New York Botanical Garden and 

 Brooklyn Botanic Garden were present. 



Dr. W. H. Brown (Hopkins '10) has gone to Manila as botanist 

 to the Philippine Bureau of Science. 



At the New York Botanical Garden Mr. A. B. Stout has been 

 appointed director of the laboratories to succeed Mr. F. J. 

 Seaver who has been appointed a curator. Dr. W. A. Murrill 

 has gone to the Pacific coast to collect fleshy fungi. 



Mr. C. A. Schwarze has been appointed an assistant in botany 

 at Columbia University. 



