a 
« 
ee 
GEM 
the 12th of Odober 1 1577. His writings are not 
rous, and relate to mathematical and philofophical ee 
as well as to medicine. 
EMMA, JOHN a native of Venice, and a 
phyfiian of conadenele epule about the end of the fif- 
teenth century. He was phyfician to Sigifmund IIT. king 
of Poland. He wrote a treatife, containin a hiftory of 
peftilential epidemics, is a detail of’ the effets of conta- 
gion, &e. 9 and ent titled, | “ De vera ratione curandi. bubonis 
1 ,Co 
mmentarius ” 
4 * 
1584. 
“Eloy. 
Gemma, in Botany and 4 egetable Pa “af fologys a: x budy moft 
probably from yrney to See 
dition to haan is id | in that place, it is neceflary t 
caution the ftu againft dn error ‘of fome philofophers, f 
efpecially a Darwin’ in the ninth fection of he diel, 
who 
5 
creafed, ad in 
n of Linnzus, p. 45 note, Accord- 
ingly, all plants increafed by bu ds, cuttings, layers or roots, 
retain precifely the peculiar qualities of the individual from 
w us varietiesare propagated, pa 
erall » not a 
s n pr is atten 
ra our Dasalace fow ele es a a their feedlings 
may unconfcioully be preferred, for fome characters of vie 
our in their sd nel ia Aa thofe who are. ee to choofe 
ee 3 well k fe ne ey 
baad 
=] 
eg 
on 
is 
Ms 
et 
° 
ie) 
pad 
ze 
fore the only true nN iction of i i 
ana we nae already explained. Seee FEcuxpation : 
of Plants. 
Som 
and even Acharius, contend for efex 
lower tribes of ve etables. 
e very eminent Cryptogamic botanifts, as Gaertner 
ual propagation in the 
equivalent to feeds, 
&ion 
unaccountable overlighh | in the cea Hi ‘ adopt this 
cae 
#eTM © oe for the feed of mpffes, though fs‘ own brilliant 
This is particularly infifted 
alogy of all . 
GEM 
theory of their fexual i impregnation, which has brought him 
fo much deferved reputation, proves that part to be a real 
feed ; whereas the term [pora, paar the contrary, ferves: 
only 1 to invalidate his own hypothefis! S. 
Gemma Veneris, in Natural Hi iin: name given by 
forne of the Latin poets, and other a. im that language, 
.to a'gem, which was much efteemed by the Romans, and fet in 
‘rings. It was ari a sal Greeks leas Many ei 
eae this to ut it is certain, from 
The worft paar 
wefethofe which had very hittls mele beyond that of gS ea 
and, the Very, y,-beft were thofe which had the fine red of the 
carbuncley mixed withthe purple of the violet, and the 
whole fo pale, ‘that-a rofe-colour feemed blended with them, 
and prédominated over the re Thefe, Pliny tells us, were 
called’ pederates and anterotes, “and: were the gems called, 
ao3 their beauty, aphredites eed and gemma Vencris ; but 
all thefe names have been fince given by others to the o 
SMM, Sal, is S yeenagel led ce rock falt, or fale dug 
out of thines. ee 
this on occation of its 
in 
of Ee in Upper Hungary ; and thofe of 
Cardonna, i in Cat alon 
‘The chief ufe of this falt is for the powdering or pickling 
of meats, in places deftitute of falt {prings, 
-GEMMEUM, an epithet ufed by the ‘atine to exprefs 
fuch veffels as were called dialitha and Athocolla.by the 
Greeks. * Roman authors, acre call 
GEMMI, in Ge mm by, part of a chain of mountains 
of Sw iezrland, olin feparates ns canton of Bern from the 
Vallais; the point of which, that overlooks and almoft over- 
hangs te Vallais, affording a moft eee prafpect over 
that fertile country and the rugged alps of Savoy. Al- 
> though this mountain is, in man ree almoit perpendi- 
” cular, a horfe-road has been hewn 1 in the hard shia down 
this ae defcent. 
n 1736, an 
ern. 
has been blown ie ith gunpowder. 
nine feet broad, and quite hangs over the precipice ; in fome 
parts it is hollow, open only at one fide, the 
projecting over it, of the fame breadth. e effet is very 
of king 3; for, as the road winds continually, the fcene alfo 
The defc 
leagues. 
GE NA ,.a town of Italy, in Friuli, old but spdlee 
n this the merchandife brought fi Fedde is 
detained and fearched by officers of the cufte 
diftriG contains 3? villages. In 1797, it was taken aes the 
French ; 21 miles: N.W. of Friuli. N. lat. EL 
long. 12° 597. 
GEMONLE ScaLz, . uel Gemonii, among the 
5E Re 
MEAS, 
