Decembeb 25, 11103. 



SCIENCE. 



819 



E. B. Wilson, Columbia University, New 

 York. For investigations in experi- 

 mental embryology, etc., in Naples. 

 $1,000. 



Abstract of Neport.— Dr. Wilson utilized 

 tliis trrant to defray the expenses of a visit 

 to the Naples Zoological Station, extending 

 from February to July, during which time 

 he was actively engaged on studies in ex- 

 perimental embryology. His first purpose 

 was to .search for available material for the 

 experimental aiujlysis of the early develop- 

 mental stages in moUusks and annelids, 

 which possess high theoretical interest in 

 their bearings on the general problems of 

 ditt'erentiation. lie reports a large meas- 

 ure of success in this direction. He found 

 two excellent objects for his research, and 

 made as exhaustive an analysis of them 

 as the time would permit. He demon- 

 strated conclusively the mosaic character 

 of the development in the raollusean egg, 

 and obtained striking evidence of the .self 

 differentiation and specification of em- 

 bryonic cells. This result is interesting 

 from its bearing on the problem of differ- 

 entiation and also, perhaps, in even a 

 greater degree, through the firm basis 

 which it gives for the general method and 

 point of view in studies of cellular em- 

 brj'ology. 



A second general division of his work 

 included the experimental study of pre- 

 localization in the unsegmented egg, which 

 yielded results of no less interest than the 

 cleavage stages. Of these the most impor- 

 tant relate to the embryonic basis of corre- 

 lation and to the relation between quanti- 

 tative and qualitative prelocalization in the 

 germ. 



Dr. Wilson adds a general comment on 

 the nature of this work to the effect that 

 its principal significance lies in its connec- 

 tion with recent studies of the cellular basis 

 of inheritance and development, taken in 

 connection with experimental studies of 



heredity such as those that have grown out 

 of the rediscovery of the Jlendelian law. 

 He is fully persuaded that there is now a 

 very good prospect of making an essential 

 advance toward an understanding of the 

 actual mechanism of liereditary transmis- 

 sion, and expresses the hope that the stud- 

 ies in this direction may receive their due 

 share of support. 



H. V. Wilson, University of North Caro- 

 lina, Chapel Hill. For morphology and 

 classification of deep sea sponges. $1,000. 

 Abstract of h'eport. — In order to com- 

 plete his investigation of the deep sea 

 sponges of the Pacific Ocean, Professor 

 \Vils(m visited the mu.seunis of London, 

 Paris, Leiden and Berlin to make a direct 

 examination of the types stored therein. 

 He returned to America in August, and is 

 at present engaged upon the text of his 

 report. 



Marine Biological Laboratory, Woods 



Hole, Mass. ; J. Blakely Hoar, treasurer. 



For maintenance of twenty tables. 



$10,000. 



Abstract of Report. — Thin appropriation 

 w<i.s made for the purpose of aiding the 

 laboratory by paying for the maintenance 

 of twenty research tables. The persons 

 a.ssigned to the tables were selected by the 

 Carnegie In.stitution. 



The following invastigatoi-s occupied the 

 Carnegie tables during the season of 1903 : 

 (1) Professor JI. A. Bigelow, Columbia 

 T'niversity, N. Y. ; (2) Dr. R. M. Strong, 

 University of Chicago, 111.; (3) Professor 

 C. E. McClung, University of Kansas, 

 Lawrence; (4) Professor George Lefevre, 

 University of Mis.souri; Columbia; (5) Pro- 

 fessor Wm. E. Kellicott, Barnard College, 

 X. Y. ; (6) Professor Arthur W. Greeley, 

 Washington LTniversity. St. Louis; (7) Mr. 

 C. J. Brues, Cohmibia University. N. Y. ; 

 (S) 'Sir. Fred. E. Pomeroy. Bates College, 

 Lewiston, Me.; (9) 'Sir. J. W. Scott. Uni- 



