92 The American Naturalist. (January, 
reading and discussion of papers, which will afterwards be published. 
The next meeting will be held in Birmingham, January 28th, 1891. 
The American Morphological Society.—A_ well-attended 
meeting for the inauguration of an American Morphological Society 
was held in the Massachusetts Institute of Technology, Boston, on 
December 29th and 3oth, 1890. Officers for the meeting were elected 
as follows: 
President, Professor E. B. Wilson ; Secretary and Treasurer, Dr. J. 
Playfair McMurrich ; Executive Committee: Professor E. L. Mar 
Dr. C.-S. Minot, and Dr. E. A. Andrews. 
After the details of meeting had been completed, the following papers 
were read and discussed: On the Development of the Scypho- 
medusee ; J. Playfair McMurrich. On the Intercalation of Vertebræ; 
G. Baur. The Heliotropism of Hydra: a Study in Natural Selection; 
E. B. Wilson. The Early Stages of the Development of the Lobster; 
H.C. Bumpus. Some Characteristics of the Primitive Vertebrate 
Brain; H. F. Osborn, The Development of Nereis and the Mesoblast 
Question ; E. B. Wilson. The Preoral Organ of Xiphidium; W. H. 
Wheeler. A Review of the Cretaceous Mammalia; H. F. Osborn. 
Spermatophores as a Means of Indirect Impregnation ; C. O. Whit 
man. The Phylogeny of the Actinozoa ; J. Playfair McMurrich. a 
The following are the officers of the society for the ensuing ree : 
President, C. O. Whitman; Vice President, Professor E. L. M ; E 
Secretary and Treasurer, Dr. J. Playfair McMurrich ; Executive Com < : 
mittee : The Officers of the Society, Professor E. B. Wilson, and Proe 
fessor H. F. Osborn | 
Third Annual Meeting of the Association of American : 
Anatomists.—Held at Boston, Mass., on December 2gth, 30th, and = 
31st, 1890.—Monday, December 29th.—The Homology of the Cerebro: os 
Spinal Arachnoid with the other Serous Membranes; F. W. Langdon) . 
M.D., Cincinnati, Ohio. Something Additional About the pire . 
Sternum ; D. S. Lamb, Washington, D. C. The Merits and Defects 
Owen’s Account of the Cerebral Fissues ; Burt G. Wilder, M.D., Ithac® 
N. Y. On the Teeth of Cheiroptera; Harrison Allen, M.D., * 
delphia, Pa. Studies on the Spine; Thomas Dwight, M.D., F 
ton, Mass. Corrosive Preparations by Different Methods; > E 
Mixter, M.D., Boston, Mass. The Relations of the Olfactory to E 
Cerebral Portion of the Brain; Burt G. Wilder, Ithaca, N. Y- = 
Unusual Case of Platycnemy in the Negro; Frank Baker, M.D 
Washington, D. C, 
