Acid Sulphuric 1·851
„ Muriatic 1·200
Spirits of Wine ·917
Alcohol ·790
Oil (turpentine) ·870
„ (olive) ·915
Oil (linseed) ·932
„ (castor) ·961
Pure water 1·000
Vinegar 1·080
Milk 1·032
Sea water 1·029
TO FIND THE WEIGHT OF A CUBIC FOOT OF ANYTHING CONTAINED IN THESE
TABLES.
_Rule._ Multiply 62·5 lbs. (the weight of a cubic foot of pure water)
by the specific gravity of the given body.
_Example._ What is the weight of a cubic foot of sea water?
62·5 lbs.
1·029 sp. gravity.
-----
5625
1250
625
-------
Answer, 64·3125 lbs. is the actual weight: but 64
lbs. is taken in practice as the weight of a cubic foot of sea water.
_Example._ How many cubic feet of sea water will weigh a ton?
Divide 2240 lbs. (1 ton) by 64 lbs.
{ _8)2240
64 { ----
{ 8) 280
----
Ans. 35
_Example._ What is the weight of a cubic foot of wrought iron?
62·5 lbs.
7·69 sp. gravity.
-----
5625
3750
4375
-------
Answer, 480·625 lbs.