213
This was seconded by m
r. Hooke who affirmed that he had vpon that princi
ple made seuerall weathergla
sses namely by poi
sing certaine bubbles or bottles
of Gla
sse seald vp hermetically, soe as ju
st to sink in fre
sh water. And that
by this meanes he had found that by putting salt into such water or Rather
gently powring fre
sh water vpon salt, and putting in the said poi
sed
bubble the same would not sink to the bottom but Remaine su
spended in
the body of the said water, at first pretty neer the bottom but at Length
it would ri
se higher & higher according as the salt did more & more
Di
ssolue in the water soe as at Length to float almo
st at the very
top.
S
r. Iohn Louther Related that he had a town vpon his E
state which was -
built vpon a place which was formerly sea. notw
thstanding which Vp
oDigging wells in the sand. (which is the ground vpon /which/
the Town standes) they find
very good springs of fre
sh water at 8 Yards Depe at w
ch. place they come
to a grauell. that there are anetient hills which may be suppo
sd to supply
the springs. that the manner of sinking the
se wells into the sand was this -
first they make a kirb of wood or plank of the exact bigne
sse they
de
signe the walls of the well. then they Lay that vpon the sand and
vpon that begin to build a cylindricall wall of Bricks two or 3 foot
high; then they dig out the sand from
the w
thin the said kirb by w
ch. meanes
the kirb and wall sinketh downwards. then they build the round walls higher
and againe vndermine the same till it be againe euen w
th the sand &
then rai
se
the walls againe & sink the kirb. proceeding in this manner till
they haue sunk
the said kirb to
the Depth of
the springs. He further added
that vnder the said town he had found a cole mine. that in sinking
a well to this cole mine they found the
se springs at 4 fathom deep, which
they indeauourd to keep out, but being not able they indeauourd to
free it from water by engines and continuing to sink further till they
came to a bed of clay at 8 fathoms they were soe ouerpowred w
thwater that they were fain to De
si
st . their proceedings in sinking
it any farther. but that sinking another in the same manner at
16 yards Di
stant they found the same sorts of ground and Clay
but as in the former but w
th.out the annoyance of springs. the former
well ^ /of 8 fathoms deep/ hauing dreined this perfectly dry though it be full 16 fathoms
Deep. which was a succe
sfull attempt of his own contrary to the opinion
of the miners -
Ref: CELL/RS/HF_215 © Centre for Editing Lives and Letters
