LARGE, OLD, OR OTHERWISE INTERESTING TREES. 35 



Kenneth Fiulayson desired to learn how it was that rusts 

 attained such headway before their presence was detected. 



Professor Halsted said in reply that the rusts develop within the 

 plants they attack, and usually go all through before producing 

 any spores. The spores are then produced upon the surface, but 

 the host plant is already ruined. However, spraying the whole 

 body of plants, as soon as the rust appears, may prevent the 

 spread of the disease through the crop, by destroying the spores 

 before they are distributed from the first diseased plant. iNIany 

 fungous diseases are somewhat local and can be readily removed, 

 but rusts are deep-seated. Spraying at short intervals is the best 

 preventive of the spread of most fungous diseases. 



Charles J. Dawson had noticed a kind of rot upon the stems of 

 some plants, and asked if such blemishes were caused by fungi. 



Professor Halsted in reply stated that bacterial diseases attacked 

 the crowns of violets, and probably some species begin their 

 destructive work upon the stems of other plants. 



BUSINESS MEETING. 



Saturday, February 2, 1895. 



An adjourned meeting of the Society was holden at eleven 

 o'clock, the President, Nathaniel T. Kidder, in the chair. 



Charles E. Richardson read his annual report as Treasurer and 

 Superintendent of the Building, which was accepted and referred 

 to the Committee on Publication. 



Henry L. Clapp, from the Committee on School Gardens and 

 Children's Herbariums, read a supplementary report, giving an 

 account of the Garden connected with the Robert G. Shaw School, 

 by W. E. C. Rich, Principal. This report was accepted and re- 

 ferred to the Committee on Publication. 



Edmund Hersey, Chairman of the Committee on Large, Old, or 

 Otherwise Interesting Trees in New England, read a report from 

 that Committee, and also presented a bound volume of photo- 

 graphs and descriptions of such trees, prepared by the Committee. 

 On motion of William C. Strong the report and the book were 



