1886.] 



MICROSCOPICAL JOURNAL. 



163 



ers abstracts of the more important 

 papers at an early date. 



At the close of the afternoon ses- 

 sion on Wednesday, about thirty 

 of the members embarked upon a 

 small steamer, and, under the direc- 

 tion of Prof. T. B. Stowell. Ph. D., 

 of Cortland, N. Y., dredged tlie lake 

 at different points, obtaining a rich 

 gathering of aquatic forms, mollusca, 

 Crustacea, etc., etc., among which 

 Mr. C. S. Fellows, of Chicago, 

 reported the finding of the rare Lep- 

 todora hvciUna^ specimens of which 

 were exhibited atthe Soiree on Thurs- 

 day evening. 



Wednesday evening was devoted 

 to photography in its application to 

 microscopy. The subject was well 

 handled and practically illustrated 

 by Hon. J. D. Cox and Mr. W. 

 H. Walmsley, both of whom are 

 acknowledged experts in the art of 

 photo-micrograph}-. 



The working session, held in the 

 gymnasium Thursday afternoon from 

 2 to 6 o'clock, was fully equal to any 

 previous session of the kind, and was 

 the source ofdeep interestto the numer- 

 ous spectators who thronged the build- 

 ing and surrounded the various tables. 



The Soiree in the same room, 

 Thursday evening, was of the usual 

 character of such displays, about 140 

 microscopes being in position, and a 

 well-selected list of objects shown to 

 a constantly shifting audience, who 

 gazed with delight upon the beauties 

 and wonders revealed to them, often 

 being loath to leave the scene of so 

 much attraction even to make room 



for the constantly increasing throng 

 of new-comers. The noted Chautau- 

 qua spectacle of the Illuminated Fleet 

 given in the latter part of the evening 

 served to somewhat deplete the au- 

 dience, and many of the members 

 availed themselves of the opportunity 

 to close their exhibits and join the 

 crowds of spectators on the banks of 

 the lake watching the evolutions of 

 the fleet of some half-dozen steam- 

 ers and innumerable small boats bril- 

 liantly lighted with colored lights and 

 a profuse display of fireworks. 



The nominating committee of seven 

 members was elected on Thursday, 

 and on Friday reported the following 

 board of officers for the next year : 

 President, Prof. H. A. Rogers, of 

 Cambridge ; First Vice-President, 

 C. M. Vorce, of Cleveland ; Second 

 Vice-President, Dr. James E. Reeves, 

 of Wheeling ; Executive Committee, 

 J. J. B. Hatfield, of Indianapolis, 

 Dr. W. R. Mandeville, of New Or- 

 leans, Dr. W. R. Clapp, of New- 

 Albany — all of whom were unani- 

 mously elected, and Mr. E. H. Grif- 

 fith was recommended as the director 

 of the working session. 



Invitations were extended to the 

 Society from Washington, Indianap- 

 olis, and San Francisco to meet in 

 those cities respectively next year. 

 The whole matter was referred to the 

 Executive Committee, who will de- 

 cide at an early date. We think no 

 better localitv' than Washington could 

 be chosen, in view of the meetings 

 of medical and other scientific socie- 

 ties to be held there next year. 



Key to the Desmidieae. 



BY DR. A. C. STOKES. 

 [ Concluded from page 148. ] 



23. Staurastrum. 

 ^ With numerous processes, their ends more or less divided (§§). 

 ^ Without processes, the angles in front view produced or not (§) 

 § Cytioderm smooth or finely punctate ( i ) . 

 § Cytioderm verrucose or granulate (2). 

 § Cytioderm hirsute, spinulose or thorny (3). 

 §§ End view 3 or 4-angled (B). 



