326 Friedel and Crafts on the combinations of 
These numbers accord very nearly with those required b 
the composition of an oxyd SiO(C,H;), in which two atoms of 
of ethyl are replaced by one atom of oxygen, and the bod 
would be the next more advanced product of oxydation to 
the oxyd of silicic triethyd, but, as we have not made sufficient 
experiments to determine the chemical properties of this sub- 
stance, we are unable to form a decided opinion as to its true 
nat 
Sinicic Meruyp. 
We first attempted to prepare silicic methyd oe of 
e mercuric se ig Seth transformed into zinc methyd b 
1 solution of caustic potash, had the same properties as the 
silicic methyd obutned with mercuric methyd. 
rtion (Annalen der Chem. und dari 
poisonous, one of us has repea sok 
tis advisable to set them eet 
le that the difference between our po 
may impurities in the zine oF 
NT Lagu die ow kill ara 
