here. To forma 
ssacatals pram Suid, a ones ses comtinaten manet take 
converted into a gaseous state 
on be destroyed, except by the aid ao 
e a8 has a stronger affinity 
as. 
“Vapor is an nse fluid, bearing a r rong bacco sane toa 
is combina tion can- 
chemical agent 
for either of the casual of 
gas but apor > or mechani- 
cal dlivisio on of any subs tanc e whatever in extort. 
vapor is _— latent, and not chemically combined: its union 
is so slight, as to be separated by simply Siascin the tem- 
rature. 
Notre 2.—CARBON. 
ae or charcoal, — a Srey table ~bonth of the ae 
wept all organized 
iam: 
mont perfects state. We are rant of the ich n 
ing it to that state ; it may roby he ‘ane 
a 
wile es ages, to purif. 
bon in the. form of a BA aa 
t——.S 
—s 
n, hpagl in a Te of combination with other sub- 
instance, i 
attraction, and flies off in a gaseous state, called carboni 
gas, 0 e fixed ed ai. 
ry | 
the , of cellars, in 2 saves where wine, ‘cider 
are suffered to ferment. amous Lake Avernns, in sane 
by mode ern Talians called Le di Tripergola and which Vir- 
hell, exhaled so large a quantity of 
carbonké acid gas, that birds could not fly over it with im- 
Carbon in a state of gas, is also found at the celebrated 
Grotto d del Cani, mene —— History inf jorms us that pele 
inals who Ww 
ately stified. 
waters, to which it gives a s dlight t acid taste; a athongh 
prejudicial to respiration, it is sometimes found to be ben 
cial to the stomach. 
Norse 3.—_UMBELLIFEROUS PLANTS. 
the Latin umbello, and fero to 
cing the inflorescence called an 
belliferous = (from 
Um 
me are those plants produ 
A} —— one of flowering, ween consists ofa 
, Spread- 
common centre, their summits forming ‘a leve el, 
ing from a 
convex, or even globose surface, as in hemlock ; more re rarely 
a concave one, as the carrot. It is oop or com aoe in 
the latter, h 4 le t mbellet, 
or umbellicle. 
