560 : General Notes. [ August, 
other half of its cocoon. Fig. to shows the larva contracting its 
body as it spins upward for about half the length of the cocoon, 
when it again changes end for end, as shown in Fig. 11, where it 
is beginning at the upper part to unite the two sides, finally 
enclosing itself as represented in Fig. 12. 
It may now be seen, under the microscope, through the meshes 
of its cocoon actively engaged in lining the interior with layers 
of very fine silk ejected from its mouth in great abundance. One 
half of the cocoon is first lined by a forward and back move- 
ment of its head, and then reversing its position it lines the other 
half in a similar manner. 
_ In one case the larva was disengaged from the skin of the 
caterpillar, after beginning its cocoon. It, however, began again, 
and spun a portion while lying on the table. This was removed, 
when it began a third time and completed its cocoon. 
In about ten days the insect made its appearance through a 
hole in the upper end, as represented in Fig. 13. The top was 
_ eaten off in a perfect circle and hung by a few threads, so as to 
resemble a lid as it was thrown back. . . 
One caterpillar observed had between three and four hundred 
cocoons on its back and sides, and another was dissected after 
more than thirty larvee had escaped, and a hundred and thirty 
were discovered in the soft integuments of the back. : 
T gures from I to 13 are magnified five diameters, but in 
order to observe the spinning of the cocoon a power of fifty 1s 
required.— Fohn P Marshall. 
ARGONAUTA TUBERCULOSA.—It should have been reported long 
ago that I had discovered a very fine and perfect shell of medium 
size, of the above, which was picked up August, 1876, from the 
surf washing at Point Comfort, New Jersey. This, in addition to 
the one obtained alive at Long Branch the same month and year, 
which I described in the American NATURALIST for April, 1877, 
p. 243, increases the probability that the geographical range of 
the species is enlarging. I am satisfied now that both are the same 
species. Considering the frailty of the shell, and its exquisite per- 
- fection, no doubt can be held that its tenant was alive not many 
hours before the finding. The sheet containing drawing and 
=- measurements is mislaid, and the vain hope to find it has caused 
` the delay in this communication.—S. Lockwood. 
ANTHROPOLOGY.! 
_ ON THE PUNISHMENT OF PROSTITUTION AMONG THE ABORIGINES. 
—During the time of my trip through Arizona several years since, 
as a member of the U. S. Topographical Expedition for the Ex- 
ploration of that region, I had an opportunity of seeing several 
Edited by Prof. Oris T. Mason, Columbian College, Washington, D. C. 
