446 



SCIENCE. 



[N. S. Vol. II. No. 40. 



On motion of Professor Atkinson, tliose 

 iaving papers to present were requested to 

 hand titles of the same to the Secretary 

 npon the day preceding that upon which it 

 was wished the paper should be read. 



The meeting adjourned at 11:30 to meet 

 at 9 A. M., Friday, August 30th. 



FRIDAY^ MORNIJS'G, AUGUST 30. 



The Club met as ordered, with President 

 D. H. Campbell in the chair. In order to 

 facilitate the reading of papers, the titles of 

 which for the first time in the historj' of the 

 Club now appeared printed in the regular 

 daily program of the A. A. A. S., the read- 

 ing of the minutes of the previous meetings 

 was dispensed with. 



The first paper presented was on ' Crim- 

 son Clover Hairballs,' by Mr. F. V. Coville. 

 These balls, composed of the hairs of the 

 Crimson Clover, Trifolmm inearnatum, has 

 been found in the stomach of a horse. Mr. 

 Coville exhibited specimens, also mounted 

 slides showing their composition. 



Professor Byron D. Halsted reported the 

 results of field experiments with beans. He 

 had found that 25 per cent, of plants grown 

 on soil previously occupied by beans were 

 affected by spot, whereas when grown on 

 new soil only six per cent. Avere diseased. 



Mrs. Elizabeth G. Britton reported cor- 

 rections upon descrij)tions of Coscinodon. 



Mr. O. F. Cook remarked upon ' A Pecu- 

 liar Habit of a Liberian Species of Poly- 

 porus,' and exhibited specimens showing 

 various degrees of prolification, one pileus 

 arising from another upon very extended 

 delicate stalks, due perhaps, to the extreme 

 moisture of their environment. 



An apparatus for the bacteriological 

 sampling of well water was described and 

 illustrated by Professor H. L. Bolley, the 

 merits of which were facilities afforded for 

 sterilization in toto, and in general accu- 

 racy of work afforded without contamina- 

 tion by air and water. 



Mr. C. L. Pollard desci'ibed the methods 

 of work in the National Herbarium. The 

 colored labels in use to designate type 

 specimens were made of special interest, 

 because of the new range offered for con- 

 venience of reference. 



Passing to order of unfinished business, 

 Dr. Trelease called for the report of the com- 

 mittee appointed at the Rochester meeting 

 to prepare and print a check list of the 

 plants of northeastern North America. Dr. 

 N. L. Britton, as chairman of the commit- 

 tee, submitted the appended report: 



" The Committee reports that it has com- 

 pleted the task assigned it by the Chib at 

 its Rochester and Madison meetings, by 

 preparing, to the best of its abilitj^, a list of 

 plants in accordance with instructions re- 

 ceived at those meetings. The Committee 

 herewith presents a printed copy for such 

 list, which has been prepared and published 

 without expense to the Club. 

 For the Committee, 



N. L. Britton, 



Chairman." 



Mr. 0. F. Cook, seconded by Dr. F. H. 

 Knowlton, moved the acceptance of the re- 

 port. After some discussion as to the scojie 

 of the term ' acceptance ' as here moved, 

 an adjournment was taken until afternoon 

 without action being taken upon the motion. 



FRIDAY AFTERNOON, AUGUST 30. 



Following the regular session of Section 

 ' G,' the Club, upon further discussion, 

 adopted the motion of Mr. Cook to accept 

 the report. 



On motion of Prof. L. H. Bailey the Club 

 then proceeded to the discussion opened in 

 the morning by passing the regular pro- 

 gram. 



On motion of Mr. F. V. Coville, seconded 

 bj' Prof. E. L. Gi'eene, and carried, it was 

 resolved that the meeting proceed to a dis- 

 cussion of the principles on which the list 

 was based. 



