( 44 *) 
Ball ( A) Lead ( A ) at 8 fathom and i foor,' returned at ao 
repeated at 8 fathom, returned at 1 9. 
Tried the third time at 10 fathom and 4 foot , return’d at a8, 
A fourth Trial, at the fame depth, juft the fame,. 
A fifth, at 10 fathom, 5 foot, returned in 27, 
A fixth Trial , juft the fame. 
A feventh, at 12 fathom, 5 foot, in 37* 
An eighth Trial, juft the fame. 
Another Day, near the fame place. 
Note , That the Pendulum was this Day adjufted , and made a 
little fhorter , there having been but 5 8 vibrations in a Minute^ the 
other Day. 
Ball Lead ( s) at 14 fathom returned in 32 
A fecond Trial, a little after in the fame place , returned in 33.. 
In making of which Trial, the Vibrations were told aloud, and 
the Lead having been let down by a Line , was found to touch the 
bottom in juft half thetime, the Ball ftaid under water. Byafe- 
cond Trial , the Afcending and Defcending was found to be in 
equal times. And by a third Trial with another Lead , the very 
fame was found , vid. 1 6 \ defcending, and 1 rf ; afcending. T his 
Lead and Ball let down without a Line the Ball returned in 13 vi- 
brations ^ a fign it went not to the bottom. 
A Trial made with a Lead , whofe iron- Crook was faftend at 
the top of it (like that in the Figure 3 .) fucceeded very well, and 
the Ball returned in 34 b But by reafon of the Current, the Ex- 
perimenters could not perceive , when the Lead touched the bot- 
tom. This Lead being let down without a Line, the Ball return- 
ed in 32, *. The depth of the water was now found by the Ships 
Lead, to be 14 fathom. 
Another Trial was made with a Line , bowing the point of the 
Lead (like that in the Fig. 4.) and the Ball return’d in 3 4. The 
fame let down withouta Line., the Ball return’d in 6 or 7 vibratb 
s ^ a fign again, it went not to the bottom, 
in a Trial with another Lead , the Ball return’d in 34. 
Repeated again with the fame fuccefs, 
' ' ' In 
ons 
