o88 
patients; whose beds might be of clean 
soft straw, or fern, with conveniences for 
exercise, both within and without, suit- 
able to the winter months, with accom- 
modation also for riding, swinging, &c. ; 
in short, a real establishment for the cure 
_ of phthysis on the best principles ; where 
students in medicine might have every 
opportunity of acquainting themselves 
with the whole progress ef that stubborn 
disease, and learn from the communica- 
tions of their numerous patients its gene- 
ral origin. 
To such houses there can beno doubt, 
I think, of finding subscribers; for as 
the generality of the sufferers under this 
disease are among the wealthy classes, 
and most are softened deeply by their 
sufferings, we might expect great support 
from many patients and their relations, 
at least as much as would sustain the 
poor who come for advice. 
Thus, Sir, I have thrown together a 
few loose hints that I hope may be ulti- 
mately serviceable to the public ; for my 
motto has always been, that every elf- 
fort ina good cause does good, and that 
we are never so blameable as when we 
despair. 
Bristol, 
Jan. 4, 1809. 
Your’s, &c. 
G. CUMBERLAND. 
To the Editor of the Monthly Magazine. 
SIR, 
BEG leave to submit for insertion, in 
the Monthly Magazine, a description 
of a new fence for enclosing pleasure 
grounds. 
The basis of the invisible fence 1s elas- 
tic iron wire, manufactured, prepared, and 
applied by a process discovered and ma- 
tured by the undersigned. Of this infran- 
gible material, which for the main-wires 
must be di'awn out to the thickness of a 
small reed, continuous strings are inserted 
horizontally through upright iron stanche- 
ons; the interval between the strings is 
about nine inches, between the stanche- 
ens about seven feet. “The horizontal 
wires in a state of tension, are fastened 
to two main-stancheons at the extremities 
of the fence, passing at freedom through 
holes drilled in the intermediate stanche- 
ons. The tension of each horizontal wire 
is preserved by the superior stability of 
the extreme stancheons, onthe construc- 
tion of which, and the mechanism of the 
hase-work, the whole as a barrier against 
heavy cattle, depends. : 
When the extent of the fence is great, 
the main-stancheons are relieved at exne- 
dient distances by other principai stanche- 
Lnwisible Fence. 
th . 
[April i, 
ons. An improvement in the mode of 
joining horizontal wires, qualifies every 
part of the length equally to bear the high- 
est degree of tension. _ 
The invisible fence, in this simple form, 
of the height of three feet and six mches, 
has in the royal pleasure grounds at Frog- 
more, and in various parks of the nobility 
and gentry, been invariably found ade- 
quate to exclude the largest and strongest | 
kindsofgrazing stock. Increased in height 
two feet, the fence becomes applicable to 
deer parks: deer have never been found 
to injure it, or attempt to leap it, and ap- 
pear to avoid it as a snare, probably de- 
tered by its transparent appearance. 
When it is intended to keep lambs out of 
plantations, perpendicular wires, compa- 
ratively small, are interwoven'upon the 
lower horizontal wires: and to proteet 
flowers and exotics from hares and rab- 
bits, it is only necessary to narrow the in- 
terstices, by minute additions to the up- 
right wires. On substances so small, pre- 
senting a round surface, neither rain nor 
snow can lodge; independent of which, by 
a coating of paint, they are preserved from 
the effects of the weather. , 
The strength attained by the principles’ _ 
on which the materials are manufactured, 
~ and the erection of the fence is construct- 
ed, cannot be justly conceived, but bya 
person who has witnessed the effect of a 
considerable force impressed, or weight 
lodged ona single wire of a fence erected. 
The tempered elasticity of the tort-string, 
allows it to bend, and on the-removal of 
the oppressing force, the vigorous recoil of 
the wire, vibrating till it reassumes a per- 
fectly straight line, shews that a violent 
shock cannot warp it. Your's, &c. 
King’s Road, J. PiLton, 
Chelsea. ; . 
_——— 
To the Editor of the Monthly Magazine. 
SIR, | 
OUR Correspondent, C. Lofit, may 
have “ remembered,” but he cer- 
tainly has “ forgot.” The two lines in 
Hudibras are, 
For those that fly may fight again, _ 
Which he can never do that’s slain. 
See Canto ili. Part 5, v. 243. 
If, however this gentleman is possessed 
of an edition which contains either of the 
lines in question, I shall consider myself 
much obliged to him for. the information. 
My edition is that of 1726,-with cuts by 
Hogarth. i 
Your's Secs 
March 2, 1809, Die: 
BoE c Te 
