250 DR ANDERSON ON THE PRODUCTS OF THE 
with the aid of heat. The filtered fluid, on cooling, deposited a few tabular 
crystals mixed with a little sal-ammoniac, which was got rid of by a second filtra- 
tion; and the filtrate, when treated with animal charcoal and further concen- 
trated, solidified, on cooling, into a mass of large foliated crystals. 
These crystals are long, transparent, and colourless plates, entirely without 
odour, and with a pungent and bitter taste. In moist air they deliquesce rapidly. 
Solid potash added to their concentrated solution causes the immediate escape of 
a gaseous base resembling ammonia, but distinguished by its peculiar putrid 
odour. This gas dissolves readily in water, and gives a powerfully alkaline solu- 
tion. It gives with corrosive sublimate a fine white precipitate, soluble in hot 
water or spirit, and deposited on cooling in fine silvery plates; and its hydro- 
chlorate gives, with bichloride of platinum, a soluble salt, depositing from its hot 
saturated solutions in beautiful golden-yellow scales. I selected this salt as a 
means of determining the constitution of its base. 
6-885 grains of the platinochloride, dried at 212°, gave 
I 1:248 ... of carbonic acid, and 
1:648 ... of water. 
II { 6-189 grains of the salt gave 
: 2:565 ... of platinum. 
II { 11-531 grains of another preparation gave 
"| 4764... of platinum. 
Experiment. Calculation. 
——— ——————————— 
Carbon, 2 - 4:92 bee 5:06 C, 12 
Hydrogen, . . 2°67 oa 2°52 H, 6 
Nitrogen, . . aise mae 5:92 N 14 
Chlorine, . ‘ oa Bae 44:89 Cl, 106-5 
Platinum, . : 41:31 41:44 41°61 Pt 98-7 


100-00 237°2 
These analyses, then, correspond exactly with the formula C, H, N HCl Pt Cl, ; 
and the base is consequently methylamine, with which it and its salts agree in 
all respects. 
The oily bases which had been separated from their solution in water by 
means of potass, were dried by the addition of successive portions of that sub- 
stance, as long as it continued to become moist. The dry oil, which was very 
dark coloured, was then introduced into a large retort, furnished with a thermo- 
meter and a tubulated receiver kept cold by ice, and connected first with a U tube 
immersed in a freezing mixture, and then with a large vessel of water, in order 
to collect the gaseous bases which began to escape with effervescence almost as 
soon as heat had been applied. Ata temperature under 150° Fahr. drops began to 
condense in the neck of the retort, and the fluid entered into rapid ebullition. At 
212° the receiver was changed, and the oil distilling above that temperature was 
collected in receivers, which were changed at every ten degrees. 
The quantity of bases which distilled under 212° was much less than I had anti- ; 

