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Camphor (Cinnamomum Camphora, Nees.). 
BritisH.—Ceylon (cultivated). . Forrigx.—Formosa, Japan, 
hina. 
In February, 1916, crude Camphor was valued at 165/- a cwt- 
and refined Camphor at 1/7 per lb. for 2} lb. slabs. Particulars 
of the distillation of Camphor are given in A.B., 1907, p. 88. 
Caraway Seeds (Carwm Carvi, L.). 
Britisu.—British Isles, India. Forrran.—Holland. 
This crop might be grown more extensively in the British Isles. 
The “‘ Perfumery and Essential Oil Record ”’ for February, 1916, 
pp. 32-33 and p. 38, directs attention to the extensive area of land 
usually employed for the cultivation of this plant which has been 
devastated by the recent floods in Holland. The price of Caraway 
Seed in Feb., 1916, was from 56/6 to 57/6 per cwt. 
Indian Hemp (Cannabis sativa, L.). 
Britisu.—India. Forrign.—Russia, Temperate Asia. 
Cloves (Eugenia caryophyllata, Thunb.). 
Malay States, Mauritius, Zanzibar, West Indies, &c. 
Cloves of commerce are the unopened flower-buds of Lugenia 
caryophyllata. The present price is about 7d. per lb. wholesale. 
Cascara Sagrada (Rhamnus Purshiana, DC.). 
Forricn.—Western N. America, particularly California. 
It is probable that this bush might be grown profitably in the 
milder parts of the British Isles. Bark from English-grown 
plants has been manufactured and found to be equal in merit to 
Dried 
American-grown bark. Dried bark was valued at 52/6 per cwt- 
m February, 1916. 
Cinchona Bark (Cinchona spp., particularly C. Calisaya, 
Wedd., C. Ledgeriana, Moens, and C. succirubra, Pav.). 
Britiso.—India, Jamaica. Foreran.—Peru, Ecuador, Java- 
Quill and broken quill bark was sold at 73d. to 93d. per lb. in 
February, 1916. For particulars of Cinchona see A.B., 1888. 
p. 139; 1890, pp. 29 and 54; 1894, p. 327. 
Cocaine, Coca (Erythroxylon Coca, Lawk.). The leaves. 
Foreicn.—Peru. 
The plant is also cultivated in Ceylon. Cocaine is worth about 
21/- per oz., less 5 per cent. for hydrochloride, at the present 
time. 
Colchicum Corm (Colchicum autumnale, L.). 
Britisa.—British Isles. Forrrgn.—Central and Southern 
Europe, N. Africa. 
Both corms and seeds are used. It is possible that a greater 
quantity could be produced in the British Isles. 
