1247
THE TEA TRIBE.
Black.
Tannin .
40 6 _
.... 34-6
Gum.
6-3 _
_ 59
Woodv fibre .
41-8 _
_ 51-3
Glutinous matter.
63 ....
Volatile matter, and loss..
20 ....
.... 25
Tea .
1000 ....
.... 100-0
D
H*’ ' n the aV ^ (Phil. Trans. 1803, p.268) also found more tannin in black than in greenas j ro P or( * on of 48 to 41. But these results are opposed to our daily expe-j *i and to ^ rom flavour, which indicates the greater astringency in the green
1 *^ e Qua ■ ex P er > meT >ts of Mr. Brande (Quart. Journ. xii. 201). The differencef t* ag 0 q II J °f tannin in the two kinds of tea, is, however, not very great. A few/{^Hine "r' V (Thomson, Orff. Chem. p. 295) announced the existence in tea of ali (Ann j l a ^ e base, to which he gave the name of theina ; but more recently,^ (p loo,. Pharm. xxv. 63, 1838) has asserted its identity with caffein, already no-aj l 't >s no ’ Notwithstanding the extensive employment of tea as an article of diet,, ^"igenc < - aS ^ Matter to ascertain correctly its precise effects on the constitution. Itsl^'ly acces 'tf rovc< i by its chemical properties ; and hence tea may be resorted to as an^(segp i’b‘ e antidote in cases of poisoning by substances containing vegetable alka-0 f )> oi - by emetic tartar. Another quality possessed, especially by green tea,^ 1 r(. Sorte |j ri _’ ,1 ’ s hing the tendency to sleep. Hence, like coffee (see p. 1031) tea is
C&i* 6
"lto :
’Wicau,
uso those who desire nocturnal study. Moreover, it may be employed
ack^f r C -° counteract *-he effects of opium and intoxicating liquors ; and Dr.iftl. a ^ into the Seat and Nat. of Fever, 2nd ed. p. 434) has suggested its
a I ^ vvic.o sy v.wv wiviv A v wv• a oovi y w v«. ^ — — ^ ^
Sj *'Cati on ° 'I. 0 re ^' e ^ °f the stupor of fever, which he considers to be nearly allied to-f * ,e H) i and . ea appears t0 possess a sedative influence with regard to the vascularrlr^blcs f„.. ’, n bliis, as well as in the watchfulness which it jtroduces, tea somewhat
o(, Cfl|)1 ttiei]dj , -^ ove ' account of its sedative power, Dr. T. Percival t Essays , vol. i.)tlj^atinp If? use in feverish and inflammatory diseases, and I can speak from frequent\' reli efof°h“ S , good effects in these maladies. To this power should also be referredR| C ' "’arm ; headache experienced by the use of tea. In colds, catarrhs, rheumatism,,n, usii - * - ... —a j;..
“cin
g grej* Us * on °f tea is frequently employed as a diluent, diaphoretic, and diuretic..- J g U] 0 , l 5 a taken in large quantities is capable, in some constitutions, of pro-t|, , 0 f op ei . - stressing feelings (Dr. E. Percival, Buhl. Hosp. Rep. vol. i. p. 219);Hit)? stror]™' 11 ? ^ a narc °tic. Dr. Lettsom (Nat. Hist, of the Tea Tree, 1772) foundiiB n< i ext ln . . s ' on °f tea introduced into the abdomen of a frog caused paralysis of” rtl °n ( l’s J en ? lt >es °f the animal. (For some interesting information on Tea , see Dr.or k, entitled Tea , its Effects, Medicinal and Moral. 1839).
t>j. Diptera'ce.e, Lindley . —The Dipterocarpus Tribe.
Dipterocarpe.^, Blume .
Mi'' 1 '' is 5 o-romatica, Gsertner (D. Camphora, Colebrooke; Shorea camphorifera,
a tavnr„ *-- - . . c , - __j xy - i tc „ „„ ♦ .v J
e 'Wd c n iarffe tree growing in Sumatra and Borneo . From its stem are obtainedPhor al e< ^ Camnhnr m7 amt a ervstalline solid denominated Sumatra or Borneo
' C*
t^eil g Us L r OH —Is obtained by making deep incisions into the tree with an axe.l t . “. Fi j j S .. ou t, and is received in bamboos or other convenient utensils (Prince,>. 18 li. 6161. It is occasionally imported into this couutry in tin canisters.
usually it is
??c°foii;'f ourcu, being yellowish or brownish. Its odour is somewhat analogous(ft .^ 8 hav " ca J u put!, combined with the odour of camphor and cardamoms. Some
: tr/t, „ 0 a stroll< 1 . J n ... .f (nmaiilina T’liic oil line lioon .innlvyrfl bv A
tenietio. ‘ U- blfl). It is occasionally imported into this country in tinto f ° r less es , Perfectly limpid, transparent, and colourless. But more us^ oilf ° U ? C< ^ being yellowish or brownish. Its odour is somewhat
(ft Wes hav e ° f ca J u P ut >. combined with the odour of camphor and cardamonits ' n . Jahrh 8 * ron »f °fl° ur of turpentine. This oil has been analyzed by Marlius^a>^ 0,ls btuem UC ™’ S. 464,1838). The mean of three analyses gave him for
d^i'Pbor 0 ii l| S C ? r ^ nn 83129, hydrogen 11‘346, and oxygen 5-525: or C 2 ® JD® 08.Na bro Wn q S .en employed in the preparation of scented soap. Sixty pounds ofof c.. 01 yielded a distiller forty pounds of colourless liquid oil, and twenty
*iSaK* t,lline Cam Ph°r.
t* 0 /® (i. e. r or P° rn eo Camphor, By the natives of Sumatra it is termed Kapur-a nd i s a r°°? Camphor ).—It is found in the natural fissures or crevices of theotained by cutting down the tree, dividing it transversely into several