The Laboratory of the Marine Biological Association on the Citadel Hill, Plymouth, overlooking Plymouth Sound. The laboratory was built with the aid of funds raised by public subscription and a contribution of £5,000 by H.M. Government, and cost £12,200. The Association has expended, exclusive of this sum, since the opening of the laboratory in 1884, about £62,000, or an average of £3,000 a year on the maintenance of the laboratory, steam-boat and fishing-boats, and in payment of a staff of scientific observers. Of this sum the Government has contributed one-third, the rest has come from private donations and subscriptions, and from the “earnings” of the laboratory by sale of specimens, admission fees to the tank-room, &c. The journal of the Association, published at intervals, records a vast amount of scientific work, advancing our knowledge of marine life and of the life-history of fishes. _In addition to the above expenditure and results_, the Association has superintended and most carefully directed the expenditure of £6,000 a year during the past five years in the investigation of the southern area of the North Sea and of the Channel at the request of H.M. Government, the work being part of the International Investigation of the North Sea. The very voluminous results of these inquiries are published in special reports by the International Committee. Full particulars of the work of the Marine Biological Association can be obtained from Dr. E. J. Allen, the Director, the Laboratory, Citadel Hill, Plymouth, who will also receive donations and applications for membership of the Association.]