80 MUSEUM OF COMPARATIVE ZOOLOGY. [Feb. 
8. Typical collections to be separately preserved, like the 
Melsheimer and Ziegler collections, now belonging to the 
Museum. 
4. Faunal collections, agreeing with the general plan 
adopted by Prof. Agassiz for the other classes of animals, in 
the greatest possible extension of perfection. 
5. A collection representing the metamorphoses and all 
different stages of the species, including their houses, cases, 
cocoons, &c. 
6. A biological collection, containing all the obnoxious or 
useful insects, their products, their manner of working and feed- 
ing, as well as specimens of the artificial products derived from 
them; or the latter might be separated, as forming an eco- 
nomical collection by itself. 
7. An anatomical collection, including microscopical prepa- 
rations, and following the order of the different systems of 
organs through the whole class. 
8. A paleontological collection, including insects contained 
in amber and in copal. 
9. A physiological collection, containing monstrosities, her- 
maphrodites, and all objects belonging to this class of facts. 
10. Since most of these collections require to be kept as 
much excluded from light and air as possible, there will bea 
collection for public exhibition, containing species remarkable 
for their beauty, or as being either useful or obnoxious ; besides, 
a collection representing types of families, and genera for ento- 
mological students. The other collections will always be acces- 
sible on special application, or for purposes of study. 
Of course, so comprehensive a plan cannot be accomplished 
under many years, nor without powerful support. To carry it 
on, requires ample means and able assistance. The collection, 
taking into account the time spent and the way in which it was 
gathered, is no doubt considerable. It consists of nearly 1,300 
boxes, some very full and nearly 4,000 alcoholic bottles ; one- 
half containing lepidoptera, one-third coleoptera, the rest the 
other orders. The fauna: of North America and Europe are 
prominent. Micros are mostly wanting. The fauna of Brazil 
is, for Rio and the vicinity, very rich ; for Para and other parts 
of the sea-shore, considerable. 
From Africa, Zanzibar is very well represented; from Asia, 
