269 



has been given leave of absence for a year for botanical research 

 in New Zealand. Her courses at the University are being given 

 by Mrs. Frederic E. Clements. 



Professor William Bateson, who lectured recently in the United 

 States on variation and heredity, has resigned the chair of 

 biology in the University of Cambridge and accepted the director- 

 ship of the John Innes Horticultural Institution at Merton, 

 Surrey. 



The Field Museum of Natural History (Chicago) has recently 

 secured the herbarium of Dr. J. T. Rothrock, which, as Dr. Roth- 

 rock was the botanist of the survey of the territories and an inti- 

 mate of Dr. Asa Gray, Dr. Torrey, Dr. Thurber, and other early 

 botanists, contains a large number of the types and co-types of 

 western North America. 



The sixty-first meeting of the American Association for the 

 Advancement of Science, and the eighth of the "convocation 

 week" meetings, will be held in Boston, December 27, 1909, to 

 January i, 1910, at the invitation of Harvard University and the 

 Massachusetts Institute of Technology. The usual reduced rail- 

 road fares are offered. At ten o'clock, December 27, Dean W. C. 

 Sabine, representing the President of Harvard University, and 

 President R. A. Maclaurin, of the Massachusetts Institute of 

 Technology, will dehver addresses of welcome, which will be 

 answered by the President, Dr. David Starr Jordan. Tuesday 

 afternoon Vice-President Richards will give his address : " The 

 Nature of Response to Chemical Stimulation." About twenty-five 

 affiliated societies are to hold meetings in Boston ; among them 

 are the Sullivant Moss Society, the Botanical Society of America, 

 and the Society of American Bacteriologists. 



