There are, however, three other important derivative odors—­ambergris, civet, and musk—­which, being from the animal kingdom, are treated separately from plant odors, in order, it is considered, to render the whole matter less confused to manufacturers who may refer to them.  Ammonia and acetic acid, holding an indefinite position in the order we have laid down, may also come in here without much criticism, being considered as primitive odors.

On terminating our remarks relating to the simple preparations of the odors of plants, and before we speak of perfumes of an animal origin, or of those compound odors sold as bouquets, nosegays, &c., it may probably be interesting to give a few facts and statistics, showing the consumption, in England, of the several substances previously named.

QUANTITIES OF ESSENTIAL OILS, OR OTTOS, PAYING 1_S._ PER POUND DUTY, ENTERED FOR HOME CONSUMPTION IN THE YEAR 1852.

lbs. 
Otto of bergamot,                                         28,574
"  caraway,                                              3,602
"  cassia,                                               6,163
"  cloves,                                                 595
Otto of lavender,                                         12,776
"     lemon,                                            67,348
"     peppermint,                                       16,059
"     roses,                                             1,268
"     spearmint,                                           163
"     thyme,                                            11,418
"     lemon grass,                     }
"     citronella,                      }                47,380
And other ottos not otherwise described, }
-------
Total essential oils or ottos imported in one year,      195,346

at the duty of 1_s._ per pound, yield a revenue annually of 9,766_l._ 16_s._

It would appear by the above return that our consumption of otto of cloves was exceedingly small; whereas it is probably ten times that amount.  The fact is, several of the English wholesale druggists are very large distillers of this otto, leaving little or no room for the sale and importation of foreign distilled otto of cloves.  Again, otto of caraway, the English production of that article is quite equal to the foreign; also, otto of lavender, which is drawn in this country probably to the extent of 6000 lbs. annually.

There were also passed through the Custom House for home consumption, in 1852—­

Pomatums, procured by enfleurage, maceration,
  &c., commonly called “French Pomatums,”
  average value of 6_s._ per pound, and paying
  a duty of 1_s._ per pound, valued by the importers
  at L1,306
Perfumery not otherwise described; value L1,920

Number of bottles of eau de Cologne, paying
a duty of 1_s._ each,[D] 19,777