fi4 TRANSACTIONS LTVERTOOL BIOLOGICAL SOCIETY. 



cases and on the shelves. Specimens of Hydroida, 

 Crustacea and Mollusca, which have been accumulating 

 since we moved from the old building, have been mounted, 

 and are now being added to the collection. In addition 

 to the technical names, commonly accepted English names 

 and brief notes on the structure and habits of the species 

 are given on the labels, and it is hoped that the keen 

 appreciation of a small number of specimens so dealt with, 

 shown by a large number of our visitors during the past 

 summer, will be thereby enhanced in the future. 



The temperature and specific gravity observations, 

 suspended for a time while we moved into the new 

 building, were resumed in the autumn of last year, and 

 have been efficiently conducted by my assistant. On 

 December 1st, 1902, after some correspondence with Dr. 

 W. N". Shaw, we adopted a new and rather fuller weekly 

 form for our observations, and began to record air and 

 sea temperatures for the Meterological Office. The 

 summary on opposite page may not be without interest. 



Townettings have been taken throughout the year 

 with as much regularity as the unsettled weather and 

 pressure of other work would permit. The only features 

 in connection with the plankton which call for special 

 notice are the scarcity of Pleurobrachia during the summer 

 and autumn, and the extraordinary abundance of Calanus 

 finmarchicus on July 4th. Professor Herdman obtained 

 an enormous quantity of this species in a few minutes 

 during the forenoon of that day, and I obtained 95 cc. in 

 thirty minutes during the evening. Anomalocera 

 fatersoni, a species which I had not seen in the local 

 plankton, for nearly six years, was present in small 

 numbers. 



A gale of extraordinary violence swept the Isle of 

 Man on February 27th, raising a tremendous sea in Port 



