Rhineland or Prussian foot: = 12356 inches,
Prussian mile:

4 68038 English miles,

2'44291

3'55739

3-87818

I '09190

0.67028

Constants relating to Gravity.

Constant. Log.

Cubic inch of distilled water at 62°F. in grains, 252.458 2°40219

2-99883

Cubic foot of distilled water at 60° F. in oz. av., 997'31

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

in lbs. av., 049125

69131

Barometric inches (32° F.) into lbs. per. sq. in. 0.49125 1.69131

Barometric millimetres (32° F.) into kilo- } 000136 3·13341

grammes per sq. centimetre, .

Kilogrammes per sq. centimetre into lbs.

14:22263 1-15298

0.13825 I'14067

Francs per hectare into £ sterling per acre,.
Francs per hectolitreinto shillings per quarter,

A TABLE OF LOGARITHMS,

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