SUNDRY COMMUNICATIONS. 325 
fixed ina wooden frame, fo as to work in the fame manner 
-as at the forge. This apparatus being placed at the edge 
of the well; one end of a leathern tube (the hofe ofa fire 
engine,) wasclofely adapted to the nofe of the bellows, and | 
the other end was thrown into the well, reaching within 
one foot of the bottom. At this time the well was fo in- 
fected, that acandle would not burn at:a fhort diftance from . 
the top; but after blowing with my bellows, only half 
an hour, the-candle burned bright atthe bottom; then, 
without further difficulty, I proceeded in the work, and. . 
finifhed my well. 
Wells’ are often made in a very flight manner, owing 
to the difficulty of working in them, and there have been 
feveral fatal inftances of the danger attending the-work- 
men; but by the above method, there is neither difficulty: 
nor danger in compleating the work, with the utmoft fo~ 
lidity.. . raukat cal cam 
It is obvious, that in. cleanfing vaults, and working in 
any other fubterraneous place, fubject to damps, as they are 
called, the fame method muft be.attended with the fame 
beneficial effect. .. 
N°. “XXXVII.-. 
4 method of draining Ponds in level Grounds, - by Jesse 
Hiceins, of Delaware. . 
Read July ~'T acertain diftance belo v the furface of ‘the 
Sahih A earth, thére is a ftratum of loofe fand, which’ 
freely admits the paflage of water. This ftratum is at 
various depths, indifferent elevations; but it will be ge- 
nerally’ 
