Constants relating to Gravity.

Constant.

Log.

Cubic inch of distilled water at 62° F. in grains, 252-458

2'40219

Cubic foot of distilled water at 60° F. in oz. av., 997.31

Cubic inch of mercury at 32° F. in grains, .

Seconds pendulum in inches at London,.

2.99883

Barometric inches (32° F.) into lbs. per. sq. in. 0°49125 69131

Barometric millimetres (32° F.) into kilo-

grammes per sq. centimetre,.

Kilogrammes per sq. centimetre into lbs.

per sq. inch,

Foot-pounds into kilogrammetres,

000136 3·13341

14-22263 1-15298

013825 114067

Francs per hectare into £ sterling per acre,. 001619 2.20917
Francs per hectolitreinto shillings per quarter, 2.32632 0.36667

A TABLE OF LOGARITHMS,

For the Mutual Conversion of the MEASURES and WEIGHTS of
ENGLAND, PRUSSIA, AUSTRIA, AND FRANCE.