XXIV 
JOURNAL OF PROCEEDINGS. 
their similar habits. He likewise stated, on the authority of a 
friend who had observed the Sisyphi in the south of Europe, that these 
last-named insects make use of the spine with which each of the 
hind legs is armed, in trundling along their balls of dung, by fix- 
ing the spine on each side of the ball, which thus rolls along on its 
own axis like a garden-roller. 
3rd October , 1836. 
J. F. Stephens, Esq. in the Chair. 
Donations. 
No. 3 of the Journal of the Natural History Society of Boston. 
Presented by that Society. 
Anniversary Address delivered before the Medico-Botanical So- 
ciety of London. Presented by that Society. 
Journal of the Bahama Society for the Diffusion of Knowledge. 
Presented by that Society. 
Memoir upon Various Exotic Crustacea. By F. E. Guerin, For. 
M.E.S., the Author thereof. 
Various Species of British Noctuidce. By W. Raddon, Esq. 
M. W. Westermann, of Copenhagen, was elected a Foreign Or- 
dinary Member of the Society. 
Exhibitions, Memoirs, &c. 
J. C. Johnstone, Esq. exhibited living specimens of the nut grass 
of the West Indies, a plant very destructive in the sugar-cane 
plantations, choking the young plants, and which had been grown 
in the apartments of the Society in a garden-pot in which some 
sugar-canes had been growing. The nut grass was found to be 
infested with a species of Aphis. 
He also exhibited specimens of the Gryllotalpa didactyla, Latr. 
from Saint Vincent’s, the ravages of which had been described at 
the meeting of the 2nd May preceding. 
Mr. Westwood exhibited a collection of insects captured in 
Corfu and Albania, by R. Templeton, Esq. 
Likewise a congregation of the cocoons of Ilythyia colonella, 
found in the interior of the stump of an acacia, described by him 
