of Bodies moving in Fluids. 13 
dwts. 
grs ‘ Oz 
"Edge z - 
O 
17c ' J 3 S 
At 50 0 inch < 
Middle m 
8 
20 
% 
.Edge x 
13 
21 'f£j 
/ 
"Edge z 
1 
16 '00! 
3 
At 40 0 incl. ■ 
Middle m 
8 
6 
4 
.Edge x 
13 
15 ' ft?/ 
3 
'Edge z 
3 
20 '0 
O 
At go 0 incl. < 
Middle m 
7 
2 'MS 
4 
^Edge x 
12 
15 ' bf! 
4 
"Edge z 
4 
lb * C 
At 20 0 incl. < 
Middle m 
6 
0 '3*2Q 
/ 
. Edge x 
11 
12 3 £0 
£ 
At io° incl. < 
v O 
r Middle m 
5 
12 ' 30 / 
s : 
It is a remarkable circumstance, that the effect of the fluid 
at z increased regularly as the angle decreased ; for, though I 
did not measure the negative effects, I could plainly perceive 
that that was the case ; whereas, the effects at m and x in- 
creased to about the middle of the quadrant, and then de- 
creased. At io°, the obliquity was such, that the section of 
the stream extended very nearly from one side of the lever to 
the other. 
As it appears by experiment, that the velocity of the fluid 
flowing out of the vessel was equal to the velocity which a body 
acquires in falling down the altitude of the fluid above the ori- 
fice, the square of the velocity must be in proportion to that 
altitude. To find therefore, in this case, whether the resistance 
varied as the square of the velocity, I let the water flow per- 
