cHap.xv.]  Lest-bwilding Crustacea. 275 
could the Podocerus capillatus do for his family? Noth- 
ing whatever! His entire labors were gratuitous. Prop- 
erly speaking, naturalists should be gentlemen of independ- 
ent fortune. At all events, they should have some profes- 
sion to live by; while Edward had nothing but his wretch- 
edly paid trade of shoe-making. The wonder is, that, with 
all his illnesses, arising for the most part from the results 
of exposure, he should have done so much, and continued 
his self-sacrificing investigations so long. But he seems to 
have been borne up throughout by his scientific enthusiasm, 
and by his invincible determination. 
NESTS OF NEST-BUILDING OBUSTAOEA. 
The Podocerus capillatus, to which Mr. Bate repeatedly 
directed Edward's attention, is a very interesting crustacean. 
It is about a quarter of an inch long. It is beautifully va- 
riegated, and builds its nests in a very bird-like manner in 
submarine forests. Edward found it in the rock-pools off 
Banff, where it built its nests on Corallina officinalis. The 
nest consists chiefly of a fine thread-like material woven 
and interlaced. The form of the nest is somewhat oval, 
