341 



SCIENCE. 



[N. S. Vol. XVI. No. 400. 



U. S. Work ill the Ohio, Allegheny and 

 Monongahela Rivers near Pittsburgh : 

 Thomas P. Roberts. 



C. A. Waldo, 

 Secretary. 



SECTION F— ZOOLOGY. 



At the first morning session on Monday, 

 June 30, 1902, in the absence of Vice- 

 President Charles C. Nutting, of the State 

 University of Iowa, the meeting was called 

 to order by Professor Henry B. Ward, and 

 Professor Carl H. Eigeumann was elected 

 temporary chairman. 



In the regular order of business, the fol- 

 lowing elections were made to the positions 

 mentioned : 



Member of the Council: Dr. W. J. Holland, 

 Pittsburgh, Pa. 



Members of the Sectional Committee : Professor 

 Charles W. Hargitt, Syracuse University; Pro- 

 fessor Henry F. Osborn, Columbia University ; 

 Professor F. M. Webster, Wooster, Ohio. 



Member of the General Committee: Professor 

 Herbert Osborn, Ohio State University. 



Press Secretary: Dr. Ch. Wardell Stiles, U. S. 

 Dept. of Agriculture. 



At the afternoon session the meeting was 

 called to order by the Secretary. 



In the absence of President David Starr 

 Jordan, his vice-presidential address was 

 presented by Professor Carl H. Eigenmann. 

 The secretary announced that the Sectional 

 Committee had elected Professor E. L. 

 Mark, Harvard University, to serve as vice- 

 president during the Pittsburgh meeting. 



At the morning session, on July 1, Pro- 

 fessor E. L. Mark in the chair, the follow- 

 ing papers were presented : 



A New Microscopical Cabinet. Made of 

 Metal: Charles Sedgwick Minot, Har- 

 vard Medical School. 

 A metal cabinet containing metal trays 



for microscopical specimens was exhibited. 



It has the advantage of being relatively 



safe from fire, and much more compact 



than wooden cabinets, and is therefore 

 recommended especially for permanent and 

 valuable microscopical collections. The 

 case is made of tin japanned, and the trays 

 also. Each tray is made with a double bot- 

 tom to prevent warping and has space for 

 twenty- four 3x1 slides. Each cabinet, hav- 

 ing thirty trays, will take 720 slides. The 

 cabinets cost $12.50 each and may be ob- 

 tained from Peter Gray and Son, 11 Mar- 

 shall Street, Boston. (Discussed by E. L. 

 Mark.) 



Insect Enemies: A Matter of Taste: 

 Francis M. Webster, Wooster, Ohio. 

 (Will appear in Entomological Neius.) 

 The speaker gave an account of experi- 

 ments in feeding living insects tc mice, and 

 called attention to the fact that distasteful 

 insects are not always rejected by all indi- 

 viduals of the same species of bird. 



Remarks on the Finding of Bones of the 

 Great Axik in Florida: Oliver Perry 

 Hay, American Museum of Natural His- 

 tory. (Will appear in full in The Auk.) 

 The speaker stated that bones of the 

 gTcat auk were found in a shell-mound at 

 Ormond, Fla. He described the situation 

 and character of the mound and discussed 

 the probability of the bird's having lived 

 in that region. (Discussed by L. L. Dyche.) 



Variation Among Hydromedusce : Charles 

 W. Hargitt, Sja-aeuse University. 

 A continuation of earlier observations 

 on this subject confirms the conclusions 

 published elsewhere by Dr. Hargitt and 

 extends them to other genera and species. 

 An examination of several hundred spec- 

 imens of Coryne mirabilis confirms the 

 statements of Bateson relative to the re- 

 markable constancy of this medusa, since 

 not the slightest variation was noticed in 

 any essential organ. The trachomedusa, 

 Trachynema digitale, showed the compara- 

 tively low ratio of eight per cent, in total 



