1800.} 
muft be prepared in the following manner. 
Av fufficient quantity of yellow or brown 
brick clay is to be procured fo moift as to 
be eafily worked; to this is to be added 4 
of good quick-lime, which has been flaked, 
the evening before, with fo much water as 
to reduce it to the confiftence of curd or 
cream cheefe. Thefe materials are to be 
thoroughly mingled together till no white 
ftreaks appear in the mafs, and are then to 
-be made up into bails about the fize of a 
man’s head. When a fufficient ftock of 
thefe is collected, to enfure a conftant fup- 
ply to the workmen, the lining of the pond 
is begun in the following manner: An 
able-bodied man defcends into the cavity 
of the bafon, and is fupplied with a clay 
ball by a labourer ftationed on the brink ; 
this he throws down with his whole force 
upon the ground, near the centre of the 
cavity: the next bali is thrown with equal 
force in fuch direction, as that it may come 
clofe into contact with the fide of the fir(t, 
and thus all the fucceeding ones are thrown, 
till the bottom and fides of the intended 
pool are compleatly covered; the only 
precaution necellary being to water the 
Jatt row of balls that is laid in the even- 
ing, left it fhould not be adhefive enough 
in the morning to make a perfeét junétion 
with the new part of the work. ‘IT'wo or 
three days after each part of the lining is 
laid, it muft be gently beaten with a flat 
piece of wood ; and, as it becomes firmer, 
the beating ia to be increafed: the furface 
is from time to time to be gently watered, 
and again beaten, till the whole floor feems 
one folid piece. When the work begins 
to powder under the beater, it is to be 
again gently watered, and finifhed with 
tte trowel, taking care to fill up every 
crevice. It is laftly to be covered with a 
coating of any cheap oil, By this means 
the lining becomes much harder and clofer 
than tarras, and rings like a bowl when 
firuck: it fhould be covered with about 
an inch of gravel, before the water is ad- 
mitted, and will be found no more fubjeét 
to leakage, than if it were made of porce- 
Jain. If kept conftantly full, no repairs 
will ever be required: the enly thing to 
be dreaded is an intenfe froft, which is apt 
to injure fuch parts as are above the level 
of the water. 

To the Editor of the Monthly Magazine. 
N your Magazine about twelve months 
back, was agitated between two gén- 
Monvsty Mac. No, 53. 
Utility of Hand Milks, 963 
tlemen, your correfpondents, the fubjeét of 
the expediency and inexpediency of hand- 
mills for grinding of corn, which I was 
forry to find terminated fo {con and unfa- 
tisfactorily : the latter gentleman advanc- 
ed that the manual labour of grinding 
the corn was more than equal to the 
toll taken by the miller, fo he drew anhatty 
conclufion, that no faving would be made 
by the experiment: but one and the chiet 
thing he forgot,viz. identity of the corn that 
every one would be fure to have his own. 
It is a common trick with thofe honett 
clafs of men to change your grift; I my- 
felf have fent to the mill good wholetome 
and found wheat, which, by the mcetamor- 
phofis of the agent, has been charged into 
fo much melilot falve that no mortal 
could eat, and other abufes as bad or 
worfe ; now at this very crifis, when fo 
much is circulated, good, bad, and indif- 
ferent, the fatisfaction of having your own, 
is of no {mall confideration. If a trike of 
wheat or barley can be turned off in an 
hour or two, fF fhould think my/elf well 
employed; or, by the help of a donkey ; 
rather than truft it to one of this fet of 
men, the moft felf-interefted of mankind. 
If, therefore, you could recommend a 
machine of this fort, upon an eafy ard 
cheap conftruétion, which are requiiite to 
render it of general utility, you would 
ferve the public effentially. | 
One Sharpe, of Leadenhall ftreet, Lon- 
don, fome years ago, publifhed engravings 
of hand-mills of different forts ; whether 
his or any other have come into ufe, fome 
of your correfpondents will be fo kind as 
to give me all the intelligence in their 
power. Fiom your obedient 
Humble Servant, 
Puitip HacketT. 
South Croxton, near Leicefter, 
Nov- 29, 1799. 
a a 
Ta the Editor of the Monthly Magazine. 
SIR, 
HE church of my parith, and the ca- 
thedral of Mechlin, in Brabant, &c. 
were dedicated to St. Rombald.—Any of 
your correfpondents giving an account 
who this St. Rombald was, will much 
gratify 
ALLAFILIUS, 
Rombald Kirks 
York/bire, 
¢H For 
