1823.] 
ihe system; equal and duc actign is 
restored. to the surface, and a highly- 
agreeable sensation is produced, which 
renders the influence of. cool air safe 
and desirable. ‘ 
The boiler should receive about 
three quarts. of water, which is suffi- 
cient for the production of steam, at 
the requisite temperature, for one 
hour’s use. It should be a clear fire; 
and, if of coal; a little small wood is 
found useful in regulating the heat. 
Any volatile substance may be intro- 
duced into the receiver, as camphor, 
&c. for the purpose of medicating the 
vapour, which is found highly benefi- 
cialin many cutaneous affections and 
rheumatic complaints. The appara- 
tus, when used near the bedside, is 
not attended with any inconvenience 
as to the production of. dampness, all 
the. condensed) vapour being com- 
pletely absorbed by the calieo covering 
or hood. 
This) apparatus’ is rendered  ex- 
tremely portable, by packing up in a 
small compass; and is in afew minutes 
ready for use, without requiring the 
patient to quit his bed-room. 
LIST.OF PATENTS FOR NEW INVENTIONS, 
‘In J. Pouchee, of King-street, Covent- 
garden, type-fonnder; ‘for certain ma- 
Spirit of Philosophical Discovery. 
439 
chinery or apparatus to be employed in 
the casting ‘of metal types. Conmuni- 
cated to him by a certain foreigner re- 
siding abroad.— Auge. 5,183. 
R. Dickenson, esq. of  Park-street, 
Southwark, Surrey for an improvemeLt 
in addition to the shoeing or aka Bi and 
treatment of horses’ feet.- —Aug. 
J. Barron, of Wells- street, Wie 
blind manufacturer, and Jacob Wilson, of 
Welbeck-streef, upholsterer; for certain 
improvements in the construction and ma- 
nafacturing of window-blinds.—Aug. 11, 
W. Wigston, of Derby, Derbyshire, 
engineer; for certain improvements on 
steam-engines.—Aug, 11. 
H. C. Jennings, esq. of Devonshire- 
street, Mary-le-bone; for an instrument 
or machine to prevent the improper 
escape of gas, and the danger and nuisance 
consequent thereon.—Aug. 14, 
R. Rogers, of Liverpool, master-mari- 
ner and ship-owner; for an improved lan- 
yard for the shrouds and other rigging of 
ships and other vessels, and an apparatus 
for setting up the same.—Anug, 18. 
J. Malam, of Wakefield, engineer; for 
a new mode of applying certain materials, 
hitherto unused for that purpose, to the 
constructing of retorts, and improve- 
ments in other parts of gas-apparatus.— - 
Ang, 18. 
*,* Copics of the specifications, or further 
notices of any of these inventions, will be 
inserted free of expense, on being transmitted 
to the Editor. 
mad 
SPIRIT OF PHILOSOPHICAL DISCOVERY. 
——=——_ 
sir great inercase of Journals devoted to Science, and the consequent accumulation of 
Facts, have determined us, as a means of putting our readers into possession of every novelty, 
to devute from three to four pages regularly to Notices of the New Discoveries and 
interesting Favts scattered through seven or cight costly publications. We hope thereby to 
ad to the vulue and utility of the Monthly Mugazine, and leave our readers nothing to desu'e 
in regard to: what is passing in the philosophical as well as literary world. The Belles 
Lettres dipartments of this Miscellany are, we believe, inferior lo no work in the interest and 
taste of the articles, while, as an assemblage of useful materials, we have confessedly no rivad 
either at home or abroad. Our only ground of lamentation is the limitation of spacey by the 
Limitation uf our price ; but, we have resisted every overture to raise it ubove two, shillings,— 
it being our ambition to present the public with the best Miscellany at the lowest price... This 
we are enabled to effect by an established circulation, and by not expending our small profits 
on merctricious advertisements. We calculate that every Number of our Miscellany i is its 
‘own best advertisement, in the sterling merits of its contents ; and that the commendation of 
the public wi!l continue to prove moré advantag vous than the equivocal representations of 
newspaper advertisements. | 
—— 
SPECIES of iron ore is dug in 
. the island of Ceylon, of which an 
account has been given by Mr. Rus- 
SELL to the Literary and Agricultural 
Society of that island, and of the pro- 
cesses by which this ore is melted, 
‘and at once converted into malleable 
iron, immediately from the furnace ; 
instead of the tedious and expensive 
process attendant on the making of 
bar-iron in other situations. 
Aérial Tides.—Colonel Wricurt, by 
a long series of barometric observa- 
tions made in Ceylon, repeated, at 
short intervals through every day, bas 
ascertained that the mereury mises 
and falls, twice within twenty-four 
hours, with so much regularity, as to 
afford 
