ee 
—- 
423 
I fay, the newly formed aqueous gas be 
diffuted through the apartment illuminated 
by the combuftion cf the hydrogen, it 
muf experience a condenfation on the 
walls and furniture of the room agreeably 
to a'l cafes wherein vapour becomes con- 
denfed by the contact of a colder body; 
and this I am apprehenhve muft prove an 
impediment to its adoption in private 
houfes, unlefs, perhaps, in fome degree ob- 
viated by a funnel placed immediately over 
the chandelier, to allow the vapour to pafs 
off before its condenfation can enfue. The 
fa& it‘elf I anticipated before 1 went fome 
time ago to the Lyceum, to fee the method 
of illumination there prattifed, not doubt- 
ing but the walls, é&c. of the theatre mua 
be covered, after the lapfe of a few hours, 
with drops of water, the product of the 
combuttion of hydrogen gas in common 
air; and I was unexpettedly fatisfied in 
obferving, after a while, the muffs of a 
party of ladies accompanying me, to be 
ftudded with moifturein a itate of extreme 
divifion, refembling the fineft dew, agreea- 
bly to che well known property of capillary 
filaments and pointed bodies, to attract and 
conienfe moilture. There is no doubt 
that much may be expected, whea gentle- 
men of fo diflinguifhed a rank in the {cien- 
tific wor'd as thofe before-mentioned, exert 
their abilities to apply difcoveries in che- 
mifiry to economical and comeftic purpoies; 
but as far asicsates ic the Lyceum, I mutt 
aver, that the method as there exhibited, 
cannot be adavied to tinofe ends, uniets, in- 
deei, it is propofed to inciude among the 
falease p oduct of this ditillauon, the 
emolumeni of water alfo, which may be 
readily obtained by colle&iog it from the 
wails cf the room, by means of cloths, or 
wringing out the curtains and other linen 
furniture of the apartments, cn the morn- 
ing fubfequen: to their illumination by 
the burning of the coa! {moke. 
Kennington, I am, Sir, &c. 
May 9, 1805.° G. J. Waicrt. 
To the Editor of the Monthly Magazine. 
SIR, 
I HAVE taken in your ufeful and re- 
{pectable publication, the Monthly 
Magazine, for a long time paft, and on 
looking over No. 128, for this month, 
yelterday, Tread an ar icle on the bruifing 
of malt, figned Zythopceus. Be pleafedto 
comuiunicate to the writer, that he may 
be tupplied with machines for bruifing of 
malt, either by hand, horfe, or other 
power, from the manofaétory of Mefirs. 
Todd and Camptell, of this place; the 
Cylinders for bruifing Malt. 
[June I, 
bruifing is performed by plane cylinders 
of cat iron, turned, true-made, of differ- 
ent fizes, and fitted in wood frames, with 
a fly wheel, hopper, &c. &c. to work by 
hand ; price from five guineas up te four- 
teen guineas ; thofe to work by horfe are 
large, and are more according to fize. 
That bruifed malt is much fuperior to 
ground, there is no doubt ; experience, the 
beit criterion we can judge by, evidently 
proves it; as alfo, that the operation is 
performed by plane roilers, true and pa- 
raliel to each other, much better than by 
fluted ones, and lefs liable to injury by 
flints,; gravel, &c. &c. 
I lately read, in a periodicai publication, 
an account of caft-iron plates being made 
centuries ago, with monumental infcrip- 
tions and placed in churches. It may 
not be uninterefting ‘to fome of your 
readers to be informed, that im this neigh- 
bourhood caft iron mile-plates are ufed 
and found to anfwer extremely wel! on the 
roads; the commifficners of the turnpikes 
finding ftone fe defaced, applied to Mefirs. 
Todd and. Campbell, who made them 
plates of caft iron; the letters and figures 
are indented, the plates ftroagly fixed on 
the ftones. On the road from hence to York, 
which is very public,. twenty-nine are 
placed from Beverly to Nefby-bridge ; 
they were fixed feven years ago, are as good 
now asat fir, and perfeétly legible. 
Meffrs. Todd and Co. are founders of 
iron, brafs, &c. and manufacturers of va- 
rious articles in calt and wrought iron-ma- 
chinery, &c. &c. and will reply to Zytho- « 
poens, or other of your Cerrefpondents 
communications, either in the way of trade, 
or information. I am, Sir, your’s, &c. 
Cannon Place, Joun Topp. 
Hull, May 11, 1805. ahi. 
To the Editor of the Monthly Magazine. 
SIR, 
] KNOW not whether the difquifition E 
contemplate be fuited to the inclinings 
of your gueits ; but I confider you as the — 
caterer, who feleéts a mental repaft for 
your numerous readers, and of courfe, that 
you occafionally introduce, by way of de- 
fert, fome topics for their amufement and 
inveftigation. | 
To thofe among your jearned and faga- 
cicus correfpondents I would therefore 
propofe the folution of a quefiion, which, 
though it be of no abfolute importance; 
yet either tends at length to prove that 
Homer fometimes nods, or that his readers 
fleep ; and which latter fentiment, not only 
His Grace of Buckingham entertained in. 
kis 
