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Babbage, Charles, 1792-1871

"On the Economy of Machinery and Manufactures"


1. The lowest of these, next the root of the horn, after
undergoing several processes, by which it is flattened, is made
into combs.
2. The middle of the horn, after being flattened by heat, and
having its transparency improved by oil, is split into thin
layers, and forms a substitute for glass, in lanterns of the
commonest kind.
3. The tip of the horn is used by the makers of knife
handles, and of the tops of whips, and for other similar
purposes.
4. The interior, or core of the horn, is boiled down in
water. A large quantity of fat rises to the surface; this is put
aside, and sold to the makers of yellow soap.
5. The liquid itself is used as a kind of glue, and is
purchased by cloth dressers for stiffening.
6. The insoluble substance, which remains behind, is then
sent to the mill, and, being ground down, is sold to the farmers
for manure.
7. Besides these various purposes to which the different
parts of the horn are applied, the clippings, which arise in comb
making, are sold to the farmer for manure. In the first year
after they are spread over the soil they have comparatively
little effect, but during the next four or five their efficiency
is considerable.


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