moisture, which, from its increased weight, will make the arc, C, 
recede from 1 to 7 (but which should have been divided decimally); 
of course the intermediate numbers_on the scale denote the degrees 
of dryness or moisture. From the greater part of this hygrometer 
being metal, it will not be liable to err, like the catgut, whipcord, 
&e.; and it may be adjusted at any time by merely drying the 
sponge, and noting whether it hangs directly at 1, which it must be 
made to do by turning the nut, g. The points of suspension, e and 
J should be further apart than I have drawn them, as the instru- 
ment will be more sensible of change. ‘ 
A more direct way of cutting a glass flask is, first to scratch it in 
the direction intended to be cut with a glazier’s diamond, or 
common flint will answer; and then, by applying a red-hot poker 
to the end of the scratch, it may be carried in any direction with 
perfect ease. 
a 
ARTICLE X, 
New Patents. 
SAMUEL JEAN Pauty, of Knightsbridge, Middlesex, engineer ; 
for an article or substance for making without seams, coats, great 
coats, waistcoats, habits, cloaks, pantaloons, mantles, stockings, 
socks, and any other kind of clothing; covers for umbrellas, and 
hats, and mattrasses ; seats and cushions filled with atmospheric air. 
March 28, 1816. 
SamMvuEL Brown, of Westgate, Norfolk, ironfounder ; for im- 
provements upon the swing and wheeled plough-carriage and 
plough-shares. March 23, 1816. 
Rosperr Cameron, Jun., of Edinburgh, paper-maker; for a 
machine for manufacturing paper on a principle entirely new. 
March 23, 1816. 
Emerson Dowson, of Welbeck-street, ironmonger, and Jonn 
Isaac Hawkins, of ‘fichfield-street, engineer; for improvements 
or additions to grates and stoves, and an instrument, machine, or 
apparatus for supplying grates and stoves with fuel. March 23, 
1816, 
Unias Hapocr, of Holloway, chemist; fora new species of 
paint, colour, and cement, for painting and colouring and pre- 
serving the interior and exterior of houses, ships, and other things. 
March 23, 1316. 
Wiiiiam Maonamara, of East Smithfield, plate-glass manu- 
facturer; for a method or methods of manufacturing glass. 
March 23, 1316. 
Joan Sorsy, the younger, of Sheffield, edge-tool maker; for 
a method of making an augur, for the use of shipwrights, mill- 
wrights, carpenters, and other artificers, upon a new and improved 
construction. March 23, 1816, 
4 
