NIT 
the falt plains of Siberia, between the Irtis and Ob rivers, 
by the falt lakes near the Jeni ea, and in the regions be- 
yond the lake Baikal. Schob etrop. v. 7. 
315. t. 10. Linn. Gen. 239. sail 322 Willd. Sp. 
Pl. v. 2. 858. Mart. Mill. Dia. v. 3- Ait. an on 
147. Juff. 316. Lamarck Iluftr. t. 403. 
eM - order, Dodecandria Monogynia. 
Gen. -» Cal. “Perianth inferior, of one leaf, five-cleft, 
erect, y fhort, permanent. Cor. Petals five, oblong, 
fpreading " nannelled, arched at the tip with an inflexed 
poi Stam. Filaments fifteen, awl-fhaped, — ere, 
the ee of the corolla; anthers roundifh. er- 
men fuperior, ovate, terminating 2 a Sia Ayie longer 
than the flamens ; ftigma fimple, - Drupa of one cell, 
ovate-oblong, pointed. Seed. Nat “folitary, three-celled, 
ovate, pointed. 
Obf. Gartner fays, that the unripe germen is trilocular, 
and that the nut is {crobicular, of one cell and fix-valved at 
the to 
‘Ch. Corolla of ay petals, arched at their tips. 
Calyx five-cleft. Stame n. Drupa fingle-feeded. 
: geal 6 ll. Roff. v. 1. 
o. f, A. Andr. Repof. t. 5 
eS elle 
greater part of the fume. Root woody, knobbed or tu- 
erous. Stems numerous, Ry sig {preading, fe a 
branched, from one to two feet in Ne: the branches 
The different appearance aflumed by this {pecies when 
growing near the gi lan fea is delineated-by Pallas in his 
Flora Roffica v. 1. t. » B. Willdenow calls it in that 
ftate N. Schoberi 8, a fays, that it has broader leaves, 
red berries, a conical nut, and {pinelefs ftem. This variety 
is a than the Siberian one in all its parts, and may pro- 
bably be a diftin& fpecies. Pallas fays, that the berries, 
Heusk faltifh, are infipid, and yet reckoned a a in the 
Cafpian defert s are faid to fe 
tage for the oe of oe 
2. N, tri i Desfon nal. v. 16. 101. 
Willd. n. 2 i three- toothed at their tips.— Native 
» that 
by the nitric acid with mi different fine bafes, 
» however, ory generally admitted, that 
Bri do aol pe out caloric in the ratio of their condenfa- 
on. X 
NIT 
the 
ation ees oxymuriat of potafh and the ‘ilammable 
bodies 
The eateft proportion of the foluble nitrats contain 
3 a ay acid te 1 of bafe, fo that inftead of confidering the 
acid as 19, the wae of x atom, hydrogen being 1, it will 
be ete ie found 38. Thofe falts, which have ae called 
{ub-nitrats, are generally nitrats, in which the acid is 1 
e fhall now g 1 account of fome of the nitrats that have 
been omitted in their proper places, and refer to others 
under their refpective bafes, Of thefe the moft important 
is the nitrat of re a whic h . 
the form of a When expofed to the air, it very foon 
attrads moiiture and deliquefces. When heated, the acid 
is difengaged with great _ and the earth remains 
ehind. 
a 
Nirrat 
mans. 
um- 
cryttallifes. The appearance of t varies muc 
cording to the temperature at which its folution is eva- 
porated. Ina heat of vie 70° to 100°, and by flow cooling, 
of long elaftic ane Whe in a heat of abo 
300°, it aff the form of a white and 7 compat mafs. 
Thefe differences are sung ftionably ow ing to SS pro- 
ate e falt con- 
Its fpecific gravity is, according to H 
ne in the Annales de Chimie, 1 At the tem- 
perature of 60° it is foluble in two parts of water, and it 
diffolves in half its weight of boiling water. hen ex- 
pofed to the air, nitrat of ammonia foon attraGts moifture 
and ieee: When it is heated in the ftate of ph pie 
it becomes fluid at a temperature below 300°, and at fro 
6a° to 400° it boils without decompofition; but when 
heated to 450°, or ae it is lec decompofed with- 
out lofing its water When this falt is 
dec mpofed in a npaaaie aoe ing 500, it is 
From the 
