News and Notes 



307 



tains about Denver, Colorado. A large collection of fungi was 

 made at elevations ranging from 6,000 to 14,000 feet. During a 

 part of the time he was accompanied by Professor E. Bethel, of 

 the East Denver High School. 



Dr. Melchior Treub, for many years director of the famous 

 botanical garden at Buitenzorg, Java, and director of the Depart- 

 ment of Agriculture for the Dutch East Indies, died at Saint- 

 Raphael, Var, France, on October 3. He was born near Leyden 

 in 1 85 1. Dr. Treub was editor of the important Annales du 

 Jardin Botanique de Buitenzorg, beginning with its second volume 

 in 1885 and retaining this editorship even since his retirement 

 about a year ago. He was the author of many noteworthy 

 botanical papers, covering a wide range of topics. 



A new book entitled Diseases of Economic Plants, by F. L. 

 Stevens and J. G. Hall, of the North Carolina Agricultural Ex- 

 periment Station, has recently appeared. This work is designed 

 to meet the needs of those students who wish to recognize, wher- 

 ever this can be done with any degree of certainty, and treat dis- 

 eases of plants without the laborious process of a detailed micro- 

 scopic study. Those characters are used in diagnosing diseases 

 which are evident to the naked eye or through the aid of the hand 

 lens, and technicalities are avoided so far as possible, thus making 

 the text a usable one to the agricultural students of the lower 

 grades. The work is confined mainly to the bacterial and fungous 

 diseases. 



The introductory chapters contain a brief historical sketch of 

 the development of the science of phytopathology; also statistics 

 regarding the damage caused by fungi, symptoms of disease, 

 methods of preventing diseases, formulae of the various fungi- 

 cides with directions as to the best methods of applying them, and 

 a discussion of the cost and profit resulting from their use. 



The body of the work is devoted to a description of the symp- 

 toms of the diseases of plants which are of economic importance 

 with directions as to the best methods of controlling them. These 

 diseases are classified according to the natural relationship of the 



