154 NATURAL HISTORY MISCELLANY. 
GEOGRAPHY AND ÁRCH/EOLOGY OF Peru.* — While in England recently, 
Mr. Squier was induced by his friends to reprint in pamphlet form the 
paper which he read before the American Geographical Society in Feb- 
ruary last. We gave an abstract of that portion of the lecture which re- 
lated to the Archeology of Peru in the NATURALIST for September; but 
did not allude in our former notice, and will well repay reading by all in- 
terested in this great centre of a prehistoric nation. 
NATURAL HISTORY MISCELLANY. 
ZOOLOGY. 
edem i AND ANCESTRY OF THE KING Crass. — In a communica- 
tion to the Boston Society of Natural History, Oct. 17, 1870, Dr. A. 8. 
Pa Pub p stated that a study of the embryology of Limulus, as well 
as its anatomy, led him to consider, as eed authors had done, from 
Savigny and Van der Hoeven down to the present time, the anterior di- 
vision of the body as a cephalothorax, the posterior division being the 
abdomen. Latreille, Milne-Edwards, and more recently Mr. Henry Wood- 
ward, ¢ the distinguished paleontologist, have regarded the anterior divi- 
pet previous to moulting a ko in the egg, the abdomen was 
: i á 
of six segments) are wen and sie only the eyes, simple and compound, 
but all the ambulatory appendages, which surround the mouth and are 
true maxillipeds, no antenne or thoracic appendages being developed. 
This region contains the stomach and a considerable portion of the intes- 
tine, and the liver, which opens into the intestine near the middle of the 
cephalothorax, sending but a single pair of biliary tubes into the abdo- 
terior half of the dorsal vessel, with two pairs of arteries 
and two pairs of valvular openings, is situated in the cephalothorax. 
the Geography and Archmology of Peru. By E. G. Squier, M.A., F.S.A. 
ete. verlosen xum Trubner & Co., 1870. (Price 25 cents. Address Naturalists, 
Agency.) 
f On some Points in the Structure of the Xiphosura. Quarterly Journal of the Geological 
Society of London for Feb. 1867, 
