is the case with nearly all odorous bodies, especially with ottos,
which, if smelled at, are far from nice, and in some cases, positively
nasty--such as otto of neroli, otto of thyme, otto of patchouly; but if
diluted with a thousand times its volume of oil, spirit, &c., then their
fragrance is delightful.

Otto of rose to many has a sickly odor, but when eliminated in the
homeopathic quantities as it rises from a single rose-bloom, who is it
that will not admit that "the rose is sweet?" The odor of civet is best
imparted, not by actual contact, but by being placed in the neighborhood
of absorbent materials. Thus, when spread upon leather, which, being
covered with silk and placed in a writing-desk, perfumes the paper and
envelopes delightfully, and so much so, that they retain the odor after
passing through the post.

EXTRACT OF CIVET is prepared by rubbing in a mortar one ounce
of civet with an ounce of orris-root powder, or any other similar
material that will assist to break up or divide the civet; and then
placing the whole into a gallon of rectified spirits; after macerating
for a month, it is fit to strain off. It is principally used as a
"fixing" ingredient, in mixing essences of delicate odor. The French
perfumers use the extract of civet more than English manufacturers, who
seem to prefer extract of musk. From a quarter of a pint to half a pint
is the utmost that ought to be mixed with a gallon of any other perfume.

CASTOR is a secretion of the _Castor fiber_, or beaver, very
similar to civet. Though we have often heard of its being used in
perfumery, we do not personally know that such is the case.

MUSK.--This extraordinary substance, like civet, is an animal