George Dimmock, one of the founders of the Cambridge 
Entomological Club, died in his home town, Springfield, 
Mass., on his birthday at the age of 78 years. His interest 
in Natural History began early, and as a boy he made 
collections of insects and took part in the work of the 
local museum, of which he was curator in 1872, until he 
moved to Cambridge as a student at Harvard College, from 
which he was graduated in 1877. In 1879 he went to 
Germany and studied with Rudolph Leuckart at the Uni- 
versity at Leipzig, from which he received the degree of 
Doctor of Philosophy. Later he went to Paris, where 
he studied with H. Lacaze-Duthiers at the zoological lab- 
oratory at Banyuls in Southern France. A paper on the 
mouth-parts of the Mosquito and other Diptera, part of 
his work at Leipzig, was privately printed in 1881. 
Returning to this country, he settled in Cambridge, and 
took an active part in the work of the Entomological Club, 
being one of the editors of its journal, Psyche, from 1880 
to 1890, at times taking entire charge and paying part 
of the expense of publication. Numerous short articles by 
him on various entomological subjects were published in 
Psyche at this time. 
His entomological work began with the Coleoptera, and 
his principal work always was with this group. Short 
papers on the Coleoptera and Lepidoptera of the neigh- 
borhood of Springfield were privately printed from 1870 
to 1878. Later he gave much attention to coleopterous 
larvae, and a paper on this subject in connection with F. 
Knab, was published by the Springfield Museum in 1904. 
The specimens on which this paper was based were given 
to the National Museum at Washington. About this time 
he visited Cuba and made studies of the Cuban Coccinel- 
lidae, which were published (in Spanish) by the Cuban 
Agricultural Station in 1906. 
In 1890 his hearing began to fail and by 1900 he could 
hardly hear anything. By this time he became much inter- 
ested in the history of the Dimmock family and in gene- 
alogy in general, to which he devoted much of his time, but 
continued to help in the entomological work of the Spring- 
field Museum and among the Springfield teachers and 
school-children. — J. H. E merton. 
