,798:] k 
favourable to the character of that extra- 
ordinary woman. 
The fifth number of Major von 
Zacwu’s Geographical Ephemerides, has 
reached this country. We congratulate 
the’ readers of the Monthly Magazine on 
this acquifition to ference, and thank- 
fully acknowledge our obligations to that 
celebrated aitronomer’s induftry in this 
interefting part of our work. ; 
From a letter of LALANDE to Major 
Von ZACH it appears that the Frenca 
miffionary whom Lord Macartney met 
with in China, of whom mention is made 
in Sir George Staunton’s narrative oi the 
embafly, was a pupil of Lalande of the 
name of Hanna. He has obtained per- 
miflion to refide in Pekin, but from the 
flight opinion entertained of his talents 
by his former tutor, the general interefts ~ 
of fcience feem but little likely to be ad- 
vanced by him. 
CaGno.i the aftronomer of Verona, 
whole houfe was deftroyed by a bomb, 
has, by the intereft of Buonaparte, been 
invited to Milan, as colleague to the ce- 
lebrated Oriani, with an appointment of 
180 zechins perann. He has alfo been 
eleSted a member of the Cilalpine Re- 
public, and prefident of the Societa Ita- 
kiana. The Cifalpine Republic: has alfo 
purchafed the apparatus belonging to his 
obfervatory at Verona for 1264 zechins. 
OrIANt has received répeated imvita- 
tions from the wardens of the Univeriity 
at Leyden, to accept of the profefforfhip 
of aftronomy there, with a falary of 2600 
guilders, and a contiderable fum of mo- 
ney to defray the expences of his removal. 
Cassini, the fourth of this illuftrious 
name, has retired into the country about 
20 leagues from Paris ; haying declined 
a feat at the board of longitude, as well as 
in the zational inflitute, from pecuniary ° 
embarrafiments. For the credit of the 
French government, we hope foon to be 
able to announce that thefe difficulties 
have been removed. 
A fpecies of fluor-{par has been and, 
sovered in Nert{chinck, externally very 
fimilar to the common violet-coloured 
fiuor, but differing from all others in 
this particular; that when heated to a 
eonfiderable degree, it affumes a beauti- 
ful emerald’ hue, which it lofes when 
cold, and recovefs on being again heated. 
It has undergone fome experiments by 
Prince GALLITZIN, and M. von VEL- 
THEIM, director of the mines, and a fa- 
tisfaftory analyfis may foon be expected, 
from the known accuracy and abilities of 
Profeflor KLAPROTH. 
Forty Articles of Scientific Intelligence. 133 
Profeffor Low1rz has afcertained, that 
all terrene {pars ({werfpathe) not except- 
‘ing thofe found in England, and the 
Witherit of Siberia, contain a propertion 
of Strenian earth. Tne fame difcovery 
has been made by MzYER, apothecary, 
at Stettin, who has further afcertained 
‘the precife proportion of acid and alkali in 
the Strontian, compared with calcareous 
earth. 
It appears from various experiments 
made by Profeffor LAaMpaDIUs, of Frei- 
berg, that the dark ore dug in the Hartz, 
is actually impregnated with arfenick 
and fulphurous acid, notwithftending 
Profefor KLAPROTH has not been able 
to difcover the former; nor M. da Ca- 
MERA, the latter of thefe fubftances in it. 
Profeflor SCHMIDT, in Gieffen, has 
analyfed a certain mineral, found ina 
lime-quarry, at Hochitat, near Auer~- 
bach, and which was fuppofed to be a 
{pecies of fluor. It is of a greenifh white, 
in fome places of an apple green, has a 
glittering, fparkling appearance when 
broken, and the luftre of the cryftals 
ftrongly refembles that of mother-of-pearl. 
The form of thefe cryftals is difficult to 
be afcertained on account of their dimi- 
nutive fize, which requires the afliftance 
of a microfcope. ‘The ftone is hard, 
makes a partial imprefjion with the edge 
upon glafs, emits little fre when brought 
into collifion with fteel, and wears away 
very rapidly. If two pieces are rubbed 
againft each other, they phofphorize, and 
yield the fulphurous fmell charaéteriftic 
of all pebbles. Thin fragments of the 
ftone are femi-tranfparent, and the de- 
tached chryftals frovgly pellucid. The 
refult of Profeffor ScHMipT’s analytis 
gives the following proportion of the com- 
ponent parts of the mineral. 
Siliceous earth, 40, 
Tayo! Vc oniccmedy Ak es 3 
Calcareous earth, BO) 5 
Iron, — _- 25. 
From all etternal and internal appear- 
ances, there is every reafon to believe, 
that the above mineral is the fame with 
WERNER’s Pre&uit, tae component parts 
exactly accerding with Profeflor KLa- 
PROTH’s analylis of the Prehut, except- 
ing a {mall difference in the proportion of 
the clay, the furplus of which, in Pro- 
feflor SCHMIDT’s experiment, may, per- 
haps, we accounted for from the circum- 
ftance of his having employed the vitriolic 
acid, which, as the procefs was made in 
a’ Hefian crucible, muft, in fome mea- 
fure, have refolved'the clav. 
Protefiex LAMPADIUS has made ae 
ra 
