m » ; 
TAN. 389 TANGIER PEA. 
is a most valuable shrub for the | ‘afterwards mixed with new. To 
gardens of sea-port towns. It should - prolong the heat in tan by diminish- 
be grown in a deep sandy soil, and ing the intensity of the fermenta- 
it is propagated by cuttings taken tion, common salt is sometimes 
off in autumn. | added ; and to increase the formes 
Tamus. — Dioscoridcee, or Ta-| _ tation, " yeast, though rather an 
mee.—'The Black Bryony. See _perisive material, is sometimes mix- 
Bryony. The Black Bryony be- ed with it. The heat of the tan-bed 
longs to the same ‘al order as | should generally exceed the heat of 
the Yam. For the Elephant’s-foot, | the atmosphere of the house by from 
which was formerly Decaxidlened to | 3°. to TOR) according to circum- 
belong to the genus Tamus, see | stances; and it should seldom be 
‘TESTUDINA'RIA. | lower than 60°,.or higher than 75° 
Tan.—The bark ef Oak or of | or 80°. In general, a tan-pit or 
other trees, after it has been used | bed requires to be turned three or 
by tanners. When it is received | four times a year; and if salt is 
by gardeners from the tan-pits, it is | sprinkled over it each time, the fer- 
generally wet and without heat;| mentation will be so far retarded 
but after it has been laid in a ridge | that the bed will retain its heat for 
in an open shed for two or three | atwelvemonth. For the purpose of 
weeks, and turned over two or three | growing Pine Apples or large hot- 
times, it becomes drier and begins | house plants, Oak or other leaves, 
to ferment, when heat is evolved in | or even dung, may be substituted 
a greater or less degree according | for tan; but for the purpose of 
to the size of the mass. In this | striking pecans the is greatly pre- 
state it is fit to be introduced into | ferable, because eat produced 
pits or beds = hothouses for the pur- | is not accompanied with so much 
pose of supplying bottom-heat. For | moisture, and hence the cattnge 
ordinary purposes the bed or layer | are not liable to be damped off. 
of tan need not be thicker than | situations where tan or leaves ee 
eighteen inches or two feet, but | not be procured, sawdust is an ex- 
_ when a very powerful heat is re-| cellent substitute, and even the 
gered: double that thickness is de- | husks of oats. Sawdust is an ex- 
‘sirable. The pots in which the plants | cellent medium for the striking Epa- 
are contained, when large, should | cridee and the Cape Heaths; the 
at first not be plunged more than | heat being more gentle and regular 
half their depth in the tan; oreven,|than with most other fermenting 
in some cases, they should be set | substances. When tan has lost the 
on its surface. But after the first | greater part of its heat, it then forms 
violent heat has subsided, they may | an excellent medium for stnking 
be plunged to the brim. When the | fleshy-leaved plants, such as Bro- 
heap begins to cool, in consequence | melia, which require rather a dry 
of the fermentation diminishing, the | heat, and a medium which under- 
tan may be turned over and the| goes the Jeast possible = in 
pots replunged, adding a little fres to moisture. 
tan, if necessary, to keep the pit to|. Tanace’rum.— Composite. —The 
the proper degree of fulness. When | Tansy. Herbaceous plants, which 
the heat subsides a second time, the | are quite h any common 
tan may be again turned and a| garden soil, and sh are increased 
larger on of fresh terial | by dividing ‘oots 
acded thd the third if aoan TANGIER PEs dthyrus Tingi 
tar, may sifted in turning, and | ténus—See La'THYRUS. 
33* 
a 
vy ana 
4 . .! 
of" - wok 
‘% 
