260 REPORT OF THE COUNCIL. 
The Staff. 
Dr. J. H. Orton and Mr. L. R. Crawshay have joined His Majesty’s 
Forces for the war, making with Mr. E. W. Nelson and Mr. E. Ford, who 
joined last year, and Mr. R. 8S. Clark, who accompanied Sir Ernest 
Shackleton’s Antarctic Expedition, five members of the staff who have 
been absent this year. Of the old staff, in addition to the Director, 
Dr. K. J. Allen, only Mr. D. J. Matthews remains, he being employed by 
the Association for half his time. 
Miss M. V. Lebour, M.Sc., lecturer in Zoology of the University of 
Leeds, has been appointed a temporary Naturalist for the period of the 
war and the Council is indebted to the Senate of the University for 
granting Miss Lebour the necessary leave of absence. Mrs. D. J. Matthews, 
M.Sc., has also been engaged for part of her time in carrying out fishery 
researches for the Association. 
Mr. D. W. Cutler, B.A., now Lecturer in Zoology at Manchester 
University, was employed for some months last summer in assisting with 
fishery work. 
Those members of the staff who have joined His Majesty’s Forces are 
being paid by the Association the differences between their salaries and. 
service pay. 
Occupation of Tables. 
The following Naturalists have occupied tables at the Plymouth 
Laboratory during the year :— 
W. DE Morean, Plymouth (Protozoa), 
Dr. E. 8. Goopricg, F.R.S., Oxford (Myxosporidia), 
Mrs. GoopricH, B.8c., Oxford (Parasitic Protozoa). 
Miss M. IrwIn, B.A., Cambridge (Embryology of Elasmobranchs). 
W. O. R. Kine, m.a, Leeds, Ray Lankester Investigator (Temperature 
coefficient of development of Hehinus miliaris). 
Mrs. W. O. R. Krye, Leeds (Enzymes of Echinoderm gonads). 
D, G. Iauuig, B.a., Cambridge (Antarctic Plankton). 
J. H. Luoyp, Birmingham (Larvee of Nematode of the Common Dogfish in 
Curcinus menas). 
Mrs. MarrHeEws, M.sc., Plymouth (Development of Aleyonium), 
Mrs. E. W. Sexton, Plymouth (Amphipoda and Polycheta), 
Dr. C. SHEARER, M.A., Cambridge (Dinophilus). 
The usual Easter Vacation Course in Marine Biology for University 
students was not held this year. 
General Work at the Plymouth Laboratory. 
The number of the Journal issued during the year (Volume X, No. 4) 
contains a report by Mr. L. R. Crawshay upon his experiments in the 
keeping of Plankton animals under artificial conditions. Since this 
paper was written Mr. Crawshay has, after a careful study of the different 
factors involved, succeeded in rearing Calanus finmarchicus, one of the 
most typical of the Plankton Copepods, through all stages from the egg 
to the adult form, under critical experimental conditions. 
