304

PKOOFS or THE PROPERTIES OF

gether in certain proportions and exposed to the electric spark,a new arrangement of their principles takes place. This maybe proved in the following manner :

Mingle together in a detonating tube, 35 parts of gazeousoxid of nitrogen and 15 of carbonated liidrogen gas. On pas-sing the electric spark through it, the inflammation will be veryvivid, and the light produced, bright red. After the explosionthe space occupied by the gases will be about 60 .

When 22 parts of nitrous oxid and 20 of hidro-carbonate areexploded, the residue Alls a space equal to 45.

If strontia water be brought into contact with the gas afterthe detonation, a white precipitate is instantly formed and a di-minution takes place. On presenting nitrous gas to this residue,the gas again becomes diminished.

Ration ale. ..Reasoning from analogy there can belittle doubt,but that when carbonated liidrogen gas is inflamed with excessof gazeous oxid of nitrogen, it will be only partially decomposedor converted into nitrogen, nitrous acid, and atmospheric air.

Experiment X.

Gazeous oxid of nitrogen and phosphorated hidrogen gas ,detonate liketvise.

Phosphorated hidrogen gas and gazeous oxid of nitrogen exertno action upon each other at common temperatures, but that theymay be made to act upon each other at a very high temperature,the following experiments will prove.

1. Mix 10 grain measures of phosphorated hidrogen gas and52 of gazeous oxid of nitrogen, in a graduated detonating tube,and pass the electric spark through it. A very vivid inflamma-tion will take place, and the tube will be filled with white vapour.The volume of the gas left behind will fill a space nearly equal