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transept which projects southwestwardly from the center of the building, 
one side of which is occupied by the Post-Office Department. The vari- 
ous branches and specialties of the Department service are represented 
more or less fully in the collection. 
ENTOMOLOGICAL DIVISION. 
The division of entomology, as organized and conducted, involves the 
curatorship of the Agricultural Museum, which has been increasing in 
its attractions during the past ten years. It occupies in the Depart- 
ment a hall 102 by 52 feet, and in the Centennial allotment a space of 60 
by 40 feet. The material of the various lines of exhibit is only in part 
from this museum, being in some of them almost entirely from new col- 
lections ; and the arrangement, with new cases and fixtures and other 
accessories of exhibition, is more complete and systematic than in the 
old collection. The entomologist and curator, Townend Glover, makes 
a valuable exhibit in economic entomology of insects arranged with ref- 
erence to the plants or products they infest, and also presents his illus- 
trated catalogue of insects, nearly three hundred copper-plates engraved 
by his own hands, illustrating by figures insects of all orders in ento- 
mology. The exhibits of the museum he assigned to the assistant ento- 
mologist, Charles R. Dodge, whose collections of grains, textile fibers, 
and paper material, are of great interest and practical value. These 
divisions use sixteen cases, four of which illustrate the cereals and 
tobacco; three are occupied with fibers, four with fruits, one with insects, 
and four with insectivorous birds and domestic poultry. 
These classes of objects are an ascending series, beginning with the 
products of the earth, as grains, fruits, tobacco, cotton or wool; next, 
the insects which prey upon them and blast the hopes of patient labor ; 
and, third, the birds which restore the balance, and render successful 
production possible by limiting the depredations of the countless hordes 
of insect spoilers. 
The arrangement of the products of agriculture is based upon a1 
equally natural system. First, the raw material, its specific kind and 
the geographical range of each; then its manufactures in regular series, 
from the slightest manipulation to the most skillful mechanical pro- 
cesses and their ultimate results, whether in tissue, texture, or other 
form of completed elaboration. 
The first case in the collection displays about one hundred and fifty 
specimens of tobacco, one hundred samples in the leaf from eighteen 
States, including the popular named varieties in different modes of 
curing, ranging in quality from the cheap shipping qualities to fancy 
cigar-wrappers worth $4 per pound. Samples are also shown illustrat- 
ing the manufacture of smoking and chewing tobacco in all its special- 
ties. Specimens are labeled to show the State in which they are grown. 
There are three cases for the display of about nine hundred samples 
of grain, comprising a collection of various cereals, selected expressly 
for the exhibition by agents of the Department, arranged in glass jars 
a foot in height, and so placed that a comparison of well-known varie- 
ties from different States can easily be made; next, one hundred and 
twenty-five samples of Indian corn, displayed in the ear upon black 
tablets, and arranged for comparison of differences between northern 
and southern grown corn, and equal variations and contrasts of varie- 
ties grown upon the same line of longitude. To make the grain colec- 
tion complete, upward of one hundred samples of manufactured products 
of cereals are shown, illustrating processes of manufacture in great 
