VOL. IV.] Botanical Meetings. 291 



left the State for some years. As a systematic botanist Mr. Greene 

 began to write in the year 1880, and his first contribution to the 

 literature of Californian botany was made in 1881. 



Mr. Greene is most evidently of opinion that any comparison 

 between his work and that of Dr. Gray must be immensely to 

 the disadvantage of the latter, but there are a few things it 

 might be well for him to remember. One of these is, that Dr. 

 Gray's work on Western botany is essentially that of a pioneer, 

 that he worked always under pressure, and that the great pre- 

 liminary work accomplished by him has enabled a swarm of 

 others without half his mental grasp to labor acceptably in more 

 restricted fields, and sometimes, as in the case of Mr. Greene, to 

 wound the kind hand which led their first weak footsteps in the 

 determination of plants. 



Dr. Gray made many errors, as must be the fate of any 

 botanist so situated, but he never hesitated to admit and correct 

 them, in which characteristic he differs strikingly from Mr. 

 Greene, and he was thoroughly incapable of ' ' covering the 

 nakedness of his own incapacity with the mantle of another's cul- 

 pability " a process in which it is to be hoped Mr. Greene will 

 have few imitators. K. B. 



BOTANICAL MEKTINGS AT THE ANNUAL ASSEMBLY 

 OF THE AMERICAN ASSOCIATION FOR THE 

 ADVANCEMENT OF SCIENCE. 



SECTION G. — A. A. A. S. 



The following papers were read either in full or by title: 



Photography as an Instrument for recording the microscopic Characters- 

 of Micro-organisms in artificial Cultures, by G. F. Atkinson. 



Symbiosis in the Roots of Ophioglossaceae, by G. F. Atkinson. 



Observations on a Rust affecting the Leaves of the Jersey or Scrub Pine, 

 by B. T. Galloway. 



Prophylla of Graminese, by W. J. Beal. 



A new injection Needle for the Study of the Lower Plants, by J^ 

 Christian Bay. 



On the Food of Green Plants, by Charles R. Barnes. 



Results of some recent Work on Rust of Wheat, by B. T. Galloway. 



