NEWS AND NOTES 



The first Mexican Scientific Congress will be held in the City 

 of Mexico on December 9 to 14. 



Mr. G. F. Gravatt has been appointed pathologist in charge of 

 the chestnut canker investigations in Virginia, which will include 

 first of all a survey of the state to locate the infected areas. 



The proceedings of the Pennsylvania Chestnut Blight Confer- 

 ence, held at Harrisburg, February 20 and 21, 1912, have been 

 recently printed in full in a very attractive and well illustrated 

 volume of 253 pages. 



Professor W. J. Wright, formerly of the department of horti- 

 culture of the Pennsylvania State College, has resigned to accept 

 the directorship of the New York State School of Agriculture at 

 Alfred University, Alfred, New York. 



According to the observations of C. Wehmer (Ber. Deutsch. 

 Bot. Gesell. 29: 704-708), oak wood is much more highly re- 

 sistant than pine to the attacks of dry rot (Merulius lacrymans) , 

 although easily invaded by many other fungi. 



An important illustrated paper on the fungous flora of arable 

 soils, by Dr. C. N. Jensen, has recently appeared as Bulletin 315 

 of the Cornell University Agricultural Experiment Station. It 

 contains a few new species and many interesting observations. 



Mr. L. O. Overholts, of the department of botany of Miami 

 University, Oxford, Ohio, was granted a research scholarship at 

 the Garden during August and September. He devoted his at- 

 tention to the completion of a list of the Polyporaceae of Ohio, 

 with full keys to the genera and species. 



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