154 
is found to exiftin nature ; thofe changes 
which art has power to accomplifh upon 
t; its attractability to the magnet, and 
its property of afting as a conduétor to 
the electric fluid; thofe ftrong affinities 
with oxy gene which enable it to enter fo 
readily into combination with air, water, 
and faline fubfance S) were among the 
moft remarkable clailes of facts, into the 
detail of which he entered in the natural 
and chemical hiitory of this metal. in 
{peaking of its 
ceconomy, he confidered zroz as exilting 
in a certain proportion in the bloed and 
other humours when the human body jg 
in a ftate of health; and as occaiioning 
various difeafes by its diminution under 
that proportion, or its augmentation above 
it. He felected chlorafs as one of the 
moft remarkable of the difeafes which 
have this origin. In cnn to the 
theory of Dt. Roto he maintained, that 
it is an excefs, not “a deficiency, oi “oxy- 
gene in the blood, which occations cilo- 
rofis, and that it 1s not oxyde of iron, but 
unoxydated iron, ina {tate of extreme di- 
vifion of its parts, which muft be admt- 
niftered for the cure of this diftemper. His 
eflay concluded with a curious enquiry 
into the reality of thofe medical proper- 
ties which have been afcribed to the mag- 
net; the refult of which led him to fate, 
that though not capable of working thofe 
wonders of cure, which have been attri- 
buted to it, the magnet will ftul, however, 
in feveral cafes, prove an ufeful remedy. 
Mr. Thomafon’s Patent for Steps to Carriages. 
influence on the animal. 
f Feb. 
A >Dr, LacomMBe, profeffor of mid- 
witery, has recently given great offence to 
almoft all the other members of the medi- 
cal faculty in Paris, by an outrageous 
public attack againft that which is called 
in ae the Cafarian Operation. He. 
has challenged the advocates of this prac- 
tice to public difputations. Several very, 
turbulent fcenes of difpute have pafled 
between him and his adverfaries. He 
triumphs as victorious and invincible, 
they, after contending in vain to hifs, and 
cough, and laugh, and talk him to filence,. 
complain, that he will fuffer none but 
himfelt to utter a word as long as he is 
able tofpeak, and that when his animal 
{pirits are exhaufted, he then efcapes re- 
futation: only by retiring under the pre~ 
tence of exceffive fatigue from the feene. 
of the difpute. He denies that Julius 
Ceelar was cut out of his mother’s womb, 
rejects the credibility ef almof every oo 
in hiftery that reprefents the Cz/arian. 
Operation as capable of being practifed 
with fuceefs ; affirms, that in the fixteenth 
century, this praétice was proferibed in. 
France on account of its certain danger 
and inutility ; complains that a practice, 
which is neither more nor lefs than aétual 
aflaffination, fhould have, in the enlight- 
ened eighteenth century, become common: 
in France, and almoft in France alone; 
and afferts, that, with proper care, deli- 
very is in all cafes poflible, even without 
the ule of inflruments. 
cn nn ee ed a Ee re 
‘THe NEW PATENTS lately enrolled. 
Mr. FHOMASON’s FOR STEPS TO 
CaARRIAGES.. * 
(With a Plate.) 
i O plan has been adopted for getting 
NY convenjently in and out Orie a Car- 
riage, without the affiftance of a fervant 
to let down and put up the fteps. The 
anv ented, which the patentee offers to the 
public, differs very little in appentance 
from the fteps in general ufe, and appears 
to effect that obje S. They fold up nearly 
in the fame manner, do not occupy more 
room, ftand in the ‘ame place, within the 
carriage, and are not fo heavy. They 
are unfolded aa let down by the aétion 
of opening the carriage door, and folded 
up by the action of fy nutting the carriage 
door. 
To the bottom of the door, near the 
hinge, is fixed an iron rolier wheel, which: 
eal runs.en.a bended lever. ‘The lever 
is {crewed to the joint of the flep, fo tiiat 
when the roller bears againft the lever, it 
willof courfe raife upthe fteps. The handle 
of the door is made to go through, fo that 
the perfon fitting in the carr age, while 
pulling to the door, occafiens the roller to 
bear Pues the bended lever, and to raile 
up the fieps before the door is half way 
fhut. A {pring then begins to aét, which 
folds the tteps fiat 5 the lower frame B. 
flides into the upper frame C. A felt- 
acting bolt fecures them firm together, 
and prevents the whole from making any 
noiie in. the calriage. 
In the opening of the door, the fleps 
will unfold and defeend with the fame ra- 
pidity as the door is opened, and if a per- 
fon epens the docr regularly, the fteps: 
will defcend fmoothly, and without noife. y 
—A fervant in putting up and letting 
down the fieps fhould eS hold of the 
brafs handle D.and he will « afily put them 
up 
