212 Miscellanies. 
It may therefore be inferred, that one egg only is implanted by the 
parasite in an egg of the canker-worm moth. The latter egg, which 
is a rude cylinder, one thirty-fifth of an inch long and one sixtieth of 
an inch in diameter, supplies sufficient food for the sustenance of the 
parasitic larve, and sufficient room for its habitation, until it assumes 
the final state. The perfect insects are evolved in June and July, and 
live probably until the severe cold of the succeeding winter. 
These parasites have been abundant during November and Decem- 
ber of this year. It seems probable that nearly all the eggs of the 
canker-worm moth, which are laid from October to December inclu- 
sive, (perhaps a third or a quarter of the whole,) are in this manner 
destroyed. Isaw none of the parasites in the spring. I have not yet 
satisfied myself whether this species of Platygaster is or is not unde- 
scribed. * E. C. Herrick. 
New Haven, Dec. 28, 1840. - 
12, Circular of the Royal Society of Northern Antiquaries transla- 
ted from the French, and communicated by Dr. Jacop Porter, of Plain- 
field, Mass.—The Society invites its members and all the friends of arche- 
ological studies to send them whatever can facilitate their researches, and 
aid them in illustrating the obscure times of antiquity. The following are 
the principal things which the Society desires to receive : 
1, Communications showing the relations which the ancient Scandina- 
vians or Normans had, in remote times, with the other countries of Europe, 
and Poet known the residences or establishments that they had there. . 
They here refer principally to Russia, Germany, the Netherlands, the 
British Isles, France, and the Iberian Peninsula. 
2. Researches illustrating the Asiatic origin of the inhabitants of the 
North, and especially the conformity of the mythology of the Edda to the 
mythological systems and religious opinions of the Persians, Hindoos, and 
other people of Asia. 
_ 8, Communications relating to the Ante-Columbian times of America, 
as well as to the archeology, history, geography and languages of this part 
of the world. 
4. For the public library of the Society: Books in all the sciences and 
in all branches of literature, ancient and modern, particularly charts a 
engravings representing ancient monuments or views of remarkable places; 
journals and reviews containing articles on northern archeology, especially 
notices and criticisms of works published by this Society. 
5. For the museum of northern antiquities: Antiquities resembling 
those of the north, and suitable for making comparisons, so as to ascertain 
their use. They desire especially to receive implements of stone OF bone 
belonging to savage nations, to whom the use of metals is but little know™ 
hese will be of still greater value, if they can be procured in connection 
