1914] Paw/ E. Howe 297 



Gortner, Carnegie Station f or Exp. Evol'n ; M. J. Greemnan, Wistar 

 Inst. ; R. W. Hegner, Univ. of Mich. ; L. J. Henderson, Harvard 

 Univ.; M. H. Jacobs, Univ. of Penn.; G. L. Kite, Henry Phipps 

 Inst'n ; R. S. Lillie, Clark Univ. ; C. E. McClung, Univ. of Penn. ; 

 /. H. McGregor, Columbia Univ. ; E. B. Meigs, Wistar Inst. ; /. P. 

 Moore, Univ. of Penn. ; Alice Robertson, Wellesley Coli. ; E. W. 

 Sinnott, Harvard Univ.; A. B. St out, N. Y. Botan. Garden; P. W. 

 Whiting, Harvard Univ. 



Officers-elect : President — 6". F. Clarke; Vice-President — F. 

 R. Lillie; Secretary — B. M. Davis; Treasurer — /. A. Harris; Addi- 

 tional members of the Executive Committee — R. G. Harrison, E. 

 P. Lyon, Raymond Pearl. 



III. THE AMERICAN ASSOCIATION OF ANATOMISTS: 

 THIRTIETH ANNUAL MEETING 



Charles R. Stockard, Secretary 



The thirtieth annual meeting of the American Association of 

 Anatomists was held at the University of Pennsylvania, in Phila- 

 delphia, on December 29-31, 19 13, in conjunction with the Zoolo- 

 gists and Naturalists, and the Federation of American Societies for 

 Experimental Biology. The papers of particular interest to bio- 

 logical chemists are listed below : 



E. R. Clark: On certain morphological and staining character- 

 istics of the nuclei of lymphatic and blood-vascular endothelium and 

 of mesenchyme cells in chick embryos. — H. M. Evans: The relation 

 between chemical Constitution, physical behavior, and ability of the 

 benzidine dyes to act as vital stains. — D. Hooker: The development 

 of pigment in a frog. — R. H. Whitehead: Vital staining of the in- 

 terstitial cells of the testis. 



Demonstrations. W. H. F. Addison: The Frankfurt method 

 of mounting microscopic sections in gelatin, without the use of a 

 coverglass. — H. H. Bullard: Demonstration of fat in the muscle 

 fibers of the myocardium and of the atrio-ventricular System. — M. 

 R. Chase: Pyridine-silver preparations of the vagus nerve of man, 

 dog and cat. — E. V. Cowdry: The staining of mitochondria in the 

 human lymphocytes with janus green. — H. M. Evans: Preparations 

 illustrating vital staining with various benzidine dyes. — S. W. Ran- 



