801 UEPOHTS ON THE STATE OK •SCIENCE, 



u. ' A Monograph of the Anaspidacea.' For the 'Quarterly Jourual 

 of Microscopical Science.' 



4. 'The Freshwater Crustacea of Tasmania.' In the 'Trans. Linn. 

 Soc. London.' 



f). ' A Memoir on the Australian and Tasmanian Crayfishes.' 



Occupation of a Table at the Marine Laboratory, Plymouth. — Report of 

 the Committee, consisting of Professor A. Dendy {Chairman and 

 Secretary), Sir E. Ray Lankester, Professor A. Sedgwick, and 

 Professor Sydxey H. Vines. 



Since the date of our last report, the British Association's table at the 

 Plymouth Marine Laboratory has been occupied as follows : — 



Jul)/ 22 to August 1, 1907.— By Mr. C. H. O'Donoghue, who was 

 engaged in collecting and preserving Hydrozoa for subsequent exami- 

 nation. 



August 15-25, 1907. — By Mr. F. J. Briugman, engaged in investi- 

 gating the histology of calcareous sponges, itc, and in obtaining material 

 for future work. 



April 9-21, 1908. — By Miss H. L. M. Pixell, who was working at 

 the physiology of digestion in elasmobranchs. 



April 21 to Mat/ 4, 1908.— By Mr. F. J. Bridgman, for the investi- 

 gation of special points in the histology of Granlia compressa. 



Experiments on the Becelopvient of the Frog. — Report of the Com' 

 mittee, consisting of Professor G. 0. Bourne (Chairman), Dr, 

 J. W. Jenkinson (Secretary), and Professor 8. J. Hickson. 

 {Drawn up hy the Secretary.) 



The Committee report that the statistical investigation into the 

 relation between the spermpath and the plane of symmetry and the 

 spermpath and the first furrow in the frog's egg is now approaching 

 completion. Details cannot be given at present, but it is expected that 

 a paper will be presented to the Section at the Dublin meeting. 



Next year it is proposed to carry out an investigation into the 

 alteration that takes place, during the development of the embryo, in 

 the magnitude of the inde.x of variability and the coefiicients of corre- 

 lation between various organs. The trout is a suitable form for the 

 purpose, and may readily bo obtained from a hatchery in the neighbour- 

 liood of Oxford. Some pecuniary assistance will, however, be necessary, 

 and the Committee ask that the grant, which has Ijeen in abeyance 

 during the past year, may be renewed. 



