53 



and Wener — by Professor Loven. All ol them are so very 

 like their marine arctic prototypes that Loven propounded 

 the theory that they were captured, and became accustomed 

 to the gradual change from salt to fresh water at the time of 

 the elevation of the land at the close of the ice age. Certainly 

 none of them have been found to frequent any small lakes. 

 The larger Scandinavian and Finnish lakes — Lakes Ladoga 

 and Onega — and Lake Superior in America are the chief 

 localities ; while Mysis oculata, the sea form, is to be taken at 

 Spitsbergen, and in the Arctic seas, as well as on the coast 

 of Labrador. 



" The discovery of M. r dicta in Ireland is very remarkable ; 

 I have taken it in no less than three large lakes, and this has 

 an important bearing on the geological hypotheses, affecting 

 the submersion and elevation of portions of that country 

 during the quaternary epoch." 



Mr. Dods exhibited a specimen of the sea-mouse {Aphrodite 

 aculeata), and a specimen of the frayed stem of the silk cotton 

 tree of Jamaica {Eriodendron anfractuosum) . 



The Society exhibited a number of plants from the 

 herbarium of the late W. H. Tugwell, Esq., which had 

 recently been re-mounted by Mr. E. Step. 



Mr. R. Smallman exhibited a number of shields, bows, 

 arrows, spears, drums, pipes, etc., from New Guinea. 



The following gentlemen lent microscopes and slides : Mr. 

 H. E. Barren, Mr. A. Cant, Mr. A. W. Dennis, Mr. F. J. 

 East, Mr. Stanley Edwards, Mr. H. S. Fremlin, Mr. E. C. 

 Goulton, Mr. W. J. Lucas, Mr. R. A. Priske, Mr. W. 

 West (Ashtead), Mr. C. West, and Messrs. R. and J. 

 Beck (6). 



Among the objects shown were the Bacilli of various 

 diseases, sections of coal, freshwater algge, insects' eyes, 

 young oysters with polarised light, sections of stems, Poly- 

 cystina from Barbadoes, the Daphnia, larva of the spiny 

 lobster, diatoms, and various insect structures. Messrs. 

 Beck exhibited the Ashe-Finlay Comparascope, a combina- 

 tion of two object glasses arranged to show two objects side 

 by side for comparison. 



At intervals during the evening various gentlemen exhibited 

 lantern slides in the Society's lantern, which was operated 

 by Mr. F. Noad Clark. 



Mr. E. C. Goulton, Mr. H. Main, and Mr. H. C. Head 

 showed details in the life-history of various species of 

 Lepidoptera ; Mr. A. E. Tonge, a number of slides of the 

 ova of Lepidoptera ; Mr. A. W. Dennis, slides illustrating 



