322 MR C. G. WILLIAMS ON THE VOLATILE BASES 
Experiment. Calculation. 
es 
Carbon, 5 : 83-29 83°91 C,, 120 
Hydrogen, . é 6:57 6:29 : 
Nitrogen, i : 10°15 9-80 N 14 
100-00 143 
The above analysis, as regards the carbon, would be useless as evidence of the 
existence of lepidine, because, as has been said, the 18 and 20 carbon formule 
only cause a difference of ‘2 of a per cent., but the hydrogen is so much 
higher in lepidine, that some slight judgment may be formed from the numbers 
obtained. 
The platinum salt of lepidine contains two per cent. more carbon, and more 
than one per cent. less platinum than chinoline, and the analysis of that obtained 
from the fraction boiling between 510° and 520° F. (265°, 271° C.), which had 
been rectified no less than twelve times, gave the following result,— 
12:740  ... carbonic acid, and 
10-265 grains of platinochloride of lepidine gave 
ih 
{ 2°720  ... water. 
3°335 grains of platinochloride of lepidine gave 
II. 3 
“940 ... platinum. 
9-125 grains of platinochloride of lepidine gave 
TiI.{ 11:455 ... carbonic acid, and 
2°430 +. Water, 
3°330 grains of platinochloride of lepidine gave 
IV. : 
935 =... platinum. 
Experiment. Calculation. 
SS 
I. & I. Hil. & IV. 
Carbon, ‘ * F 33°85 34:23 34:36 Cor 120 
Hydrogen, ‘ : R 2:94 2°96 2-86 1s 10 
Nitrogen, , : : ie eit 4:01 N 14 
Chlorine, ; P 2 sae oe 30:50 Cl, 106°5 
Platinum, : s 5 28-18 28:08 28:27 Pt 98-7 
100-00 349-2 
As a further confirmation of the constitution of lepidine, the density of its 
vapour was ascertained with the following result,— 
Temperature of balance case, F : . - : : 58° Fah. 
pe vapour : : ¢ 7 . : f . 651° -. 
Excess of weight of balloon and vapour over balloon and air, . 10°050 grains. 
Capacity of balloon, : : . : : : : . 825:5 cub. Cent. 
Barometer, 2 5 é A 6 d ‘ fs . 29-852 inches. 
Residual air, : 4 : : 0- 
Theoretical Density of Vapour. Experiment. 
C,, H, N = 4 vols. 
4:94 5°14 
Nitrate of Lepidine.-—When the fraction boiling from 500° to 510° F. (260° 
266° C.) is dissolved in nitric acid of moderate strength, a solution of a pale red 
colour is obtained, which, on evaporation, yields a deep brownish-red deliquescent 
