In the first category there are two varieties: - (T) A mixture of ioo litres of spirit and 22 litres of a mixture of 4 parts of wood-naphtha and 1 of pyridine bases; this spirit, the use of which is practically limited to heating and lighting purposes, may be mixed with 50 grs.
Grain from 270 lb per head in 1884-1885 to 321 lb in 1901-1902 (maize reman~s almost stationary at 158 II,); wine from 73 to 125 litres per head; oil from 12 to 13 lb per head (sugar is almost stationary at 73/4 lb per head, and coffee at about I Ib); salt from 14 to 16 lb per head.
In an experiment on 3500 grams of paraffin produced from shale (melting point 44'5° C.) they obtained nearly 4 litres of liquid hydrocarbons, which they subjected to fractional distillation, and on examining the fraction distilling below loo° C., they found it to consist mainly of olefines.
Thus in the case of cyanacetic acid, while the volume V changed by doubling from 16 to 1024 litres, the values of k were 0.00 (37 6, 373, 374, 361, 362, 361, 368).
(a) What would be the dimensions of a cubical vessel which would exactly hold 125 litres; a litre being a cubic decimetre ?
(2) A mixture of loo litres of spirit, 14 litres of the naphtha-pyridine mixture described above, 4 litre of methyl violet solution, and from 2 to 20 litres of benzol; this fluid is limited to combustion in motors and agricultural engines.
The "general" mixture consists of Too litres of spirit, and 5 litres of wood spirit or 2 litre of pyridine.
These consist of ioo litres of spirit mixed with either ro litres of sulphuric ether, or r litre of benzol, or 2 litre of turpentine, or ï¿½025 litre of animal oil.
In France, the general denaturizing agent is wood-spirit of at least 58 over-proof, and containing 25% of acetone and 2.5% of "impurites pyrogenees"; 10 litres of this spirit denaturizes Too litres of alcohol.
All these sources are estimated to yield about 220 to 230 litres per head.
With metric units, measuring P in kg., and C in litres, the G.D.
20 litres; 10 litres or decalitre; 5, 2, 1, 0.5, 0.2, 0.1 (decilitre); 0.05, 0.02, 0.01 (centilitre); 0.005, 0.002, 0.001 (millilitre) litres
P. 543), as has also aluminium turnings moistened with potassium cyanide and mercuric chloride, which decomposes water regularly at 70°, i gram giving 1.3 litres of gas (Mauricheau-Beaupre, Comptes rendus, 1908, 147, p. 310).
This may consist of a glass sphere of 50 litres' capacity, into the neck of which, presented downwards, the necessary tubes are fitted.
The whole of the interior surface is washed with a fountain of alkali, kept in circulation by means of a small centrifugal pump. In this apparatus, and with about one horse-power utilized at the transformer, the absorption of gas is 21 litres per hour ("The Oxidation of Nitrogen Gas," Trans.