Hagen.] 154 [March 27, 
dences of glacial action were observed in no part of the Eastern Am- 
azonas. 
Since no trace is to be found of the great moraine; since the sup- 
posed erratics of Ereré are undoubtedly boulders of decomposition, 
and the serra and plain of Ereré are entirely different in structure 
from the table-topped hills, the theory of Prof. Agassiz seems to ad- 
mit of serious doubt. 
Dr. Hunt, who was introduced by Dr. J. B. 8. Jackson, 
exhibited some seeds given to one of his patients by a Mex- 
ican, who said that they had been in his possession for over 
two years, and had been collected in Mexico. These seeds 
when placed on a heated surface, or in the hot sun, exhibited 
a wonderful activity, which Dr. Hunt illustrated by placing 
them on a warm plate, when they soon began to dance in a 
lively manner. Dr. Hunt said this was owing to the motions 
of a larva which the empty shell contained. 
A mounted Jackall (Canis aureus) presented by Capt. A. 
Lewis was exhibited, and the thanks of the Society were 
voted for the gift. 
Section of Entomology. March 27, 1872. 
Mr. Edward Burgess in the chair. Twelve members present. 
The following resolutions were offered by the Secretary, 
and unanimously adopted : — 
Resolved: that in the death of our late associate, William Hales 
Dale, we mourn the loss of one whose many graces had endeared him 
to us, and whose researches in Natural Science commanded our ad- 
miration and respect. 
fesolved: that the above be communicated to the friends of the de- 
ceased and inscribed upon our records. 
Dr. Hagen remarked on the larve of the Telephoride bee- 
tle found in numbers on the snow in Somerville, March 14, 
by a Mr. Lawson. He thought they were the larve of 
Chauliognathus Pennsylvanicus. 
