DIAMBA, OR “CONGO TOBACCO.” 9 
2. A healthy cluster of young Coffee-berries :—wat. size. 
3. A cluster of berries after being over-run with the Coccus :—nat. size. 
4. A Coccus immediately after being hatched, when there is no difference 
between the male and the female :—highly magnified. 
5. The male in the pupa state :—highly magnified. 
6. The perfect male :—highly magnified. 
7. A female shortly after she has attached herself to the stem of the 
plant :—highly magnified. 
8 & 9. The female about the period of Re highly mag- 
nified. 
` 10. The female, or “scale,” arrived at maturity :—wat. size. 
11. The same :—highly magnified. 
12. A few eggs :—Aighly magnified. 
13. A morsel of the black fungus :—highly magnified. 
14, A branch of the same, bearing seeds :—still more highly magnified. 
Short notice of the African Plant DiAMBA, commonly called Congo 
Tobacco; by R. O. CLARKE, Esa., Surgeon and Colonial Apothecary 
to the Colony of Sienra LEONE: communicated by the Author. 
[The properties of Bang, or Indian Hemp, by some called Cannabis 
Indica, but with more justice considered by others to be identical with 
the Cannabis sativa, are well known and fully detailed in the * Materia 
Medica’ of Dr. Pereira (vol. ii. p. 1242). Mr. R. O. Clarke, Surgeon 
to the colony at Sierra Leone, has discovered that the same narcotic has 
been long in use in the interior of that colony, and has communicated 
the followiag particulars, together with samples of the dried plant, and 
extracts from it, which are deposited in the Museum of the Royal Gardens _ 
of Kew. Where the intoxicating uses of this drug were first detected — 
it would be difficult to say. Pereira observes, that the Asiaties and - 
Egyptians employ hemp for the purposes of intoxication. The majoon — 
used at Calcutta, the rupouchari employed at Cairo, and the dawamese 
of the Arabs, are preparations of this kind. From Egypt or Arabia ` 
the knowledge probably extended to tropical Western Africa, and — 
perhaps thence also in the other direction into India.—Ep.] a 
The Diamba plant (Cannabis sativa) is considered to be indigenous * 
in moist situations in the interior of ings Western Afrigh h near de. 
Congo or Zaire river. 
VOL. III. t S 
