l/e get able Statkks. 7 9 
feet long, with lateral branches 5 the diame- 
ter of the tranfverfe cut /, where it was cut 
off, was 4 of an inch : The great end of this 
branch I put into the cylindrical glafs e r , 
which was an inch diameter within, and 
eight inches long. 
I then cemented fafl: the joynt r, firft fold- 
ing a ftrap of (heeps skin round the ftem, 
fo as to make it fit well to the tube at r 5 
then I cemented fafl: the joynt with a mixture 
of Bees-wax and turpentine melted together 
in fuch a proportion, as to make a very ftifF 
clammy Pafle when cold, and over the cement 
J folded feveral times wet Bladders, binding 
it firm with Pack-thread. 
At the lower end of the large tube e was 
cemented, on a lefler tube x e, % inch dia- 
meter in bore, and 18 inches long: The 
fubflance of this tube ought to be full | of 
an inch thick, elfe it will too eafily break 
in making this experiment. 
Thefe two tubes were cemented together 
at f, firfl with common hard brick-dufl ce- 
ment to keep the tubes firm to each other j 
but this hard cement would, by the different 
dilatations and contraftions of the glafs and 
cement; feparatefrpm the glafs in hot wea- 
4 ' thcr. 
