No. 426.] NOTES AND LITERATURE. 501 
The changes to be noted in this edition are not very extensive. 
External anatomy is studied in grasshopper and beetle; internal 
anatomy, in the larvae of Corydalis and Holorusia; there are two 
chapters devoted to comparative anatomy of mouth parts and wings; 
there is a brief opening chapter on terminology, and another con- 
cluding one on methods of insect histology. The growth of eleven 
pages is chiefly due to the (new) chapter on the anatomy of the larva 
of the giant crane fly (Holorusia) by Professor Kellogg. This chapter, 
proposed as an alterhative to the one on Corydalis, is a very desira- 
ble addition whether Corydalis be obtainable or not. Such state- 
ments as this, *The internal anatomy of all insects is exceedingly 
similar," continue to be repeated in the latest text-books of zoólogy ; 
but it would seem that even the average “pure morphologist," for 
whom one grasshopper constitutes an entomological summer, should 
eventually learn.their absurdity. 
In the old chapters there are new paragraphs here and there. In 
the study of even such well-worn subjects as the skeleton of the grass- 
hopper the discovery of new sclerites still goes on. Thus, in the last 
‘edition were noted for the first time sternum and sternedlum, and in 
this one we note such new parts as żrochantin of the mandible and 
antennary sclerite, etc. 
For a simple, straightforward, condensed guide to the laboratory 
study of elementary insect anatomy, there is no such book elsewherc. 
j. GN, 
The Breeding Habits of Cancer magister. — In 1884 Prof. J. 
Brown Goode wrote! concerning Cancer magister: “Nothing is 
known regarding the spawning season and habits of this species. 
'The occurrence of a female with spawn in the San Francisco market 
has not yet been recorded by any naturalist.” This last statement 
is still true, there being no scientific record, so far as I can learn, of 
the capture of this crab while it was carrying eggs. This is rather 
remarkable, since Cancer magister is the largest of the edible crabs 
of the Pacific coast of the United States, and extends from Sitka on 
the north, as far as Magdalena Bay, Lower California, to the south. 
In San Francisco Bay and vicinity they are common, and thousands 
are annually brought to the markets, where they hold as important 
a position as does "e in. the commerce of the. eastern 
seaboard. 
Y The Fisheries and € Industries of the United States. Section 1, Natural 
Animals. 1884. 
. -History of Useful Aqua 


