AND ITS APPLICATION TO MR. B. TOWER’S EXPERIMENTS. 
171 
for 
water 
air . . 
olive oil . 
j a=0-017793lP 
/i=0-0001879(l + 0-00366T) 
/jl= 3-2653 e~' omT% 
( 4 ) 
With the same unit of length, but g grammes as unit of mass and 1 gramme as 
unit of force, the values of p, are for 
water. . . ^=0*000019792P 
air. . . . ju= 0 •00000019153( 1 + , 00366T) 
olive oil . . ^=0-0033303 e-° 123T 
( 5 ) 
The units of length and mass being the foot and pound and the temperature in 
degrees Fahr. for 
water . 
air . 
olive oil 
/x=0-001197lP 
fi— 0-000011788(1 + -0020274T) 
fi = 0-21943 e -022iT 
( 6 ) 
With the same unit of length the unit of mass being (/(32’1695) lbs. and the unit 
of force 1 lb. for 
water . . 
air . . . 
olive oil . 
^ = 0-000037166P 
^=0-00000036645(1 +-0020274T) L 
^=0*0068213 e-° 231T 
(?) 
Taking the unit of length 1 
inch and the unit of force 1 lb. for 
water . 
air . 
olive oil 
/X =0‘000000258105P 
^=0-0000000025447(1+ -0020274T) 
j u=0-00004737 e-' O331T 
( 8 ) 
* For olive oil the values of /<, have only been tested between the limits of temperature 16 u and 49 u C. 
or 61° and 120° Fahr. 
z 2 
