m $20 Compophn James’s Powcler, %%% 
fcfliment was depofited than had fallen from a quantity of 
diftllled water equal to this muriatic foiution, to which had 
been added twenty drops of this Pruffian alkaline lixivium, and 
one-fourth part of a drop of muriated antimony. The fame 
Pruffian alkali mixed with vinegar, on {landing, turned bluifli, 
but depofited nothing. 
7. Though the Pediment that fell in the filtered fluid, p. 
320. on merely {landing, dfffolved in the nitrous acid as above 
-mentioned ; yet, when this acid was added in a fmaller 
proportion, but to render the mixture four, a partial foiution 
only took place. On adding, however, a very fmall quantity 
of marine acid, the foiution was total, and with lefs fupei> 
abundance of this menflruum than of the nitrous add in 
which a part remained undiffolved. This foiution 
(ci) With water depofited Algaroth powder : 
{b) With Pruffian alkali turned biulffi, and, on {landing, a 
fmall quantity of Pediment took place. 
(c) A bright plate of copper, immerfed in this fetation* 
did not appear to be at all whitened, or rendered paler. 
(d) Muriated barytes rendered this foiution very turbid 
dnftantly. 
(e) Acid of fugar produced no change, except in two or 
three days a very minute portion of fediment ; but the faccha** 
rated foda immediately occafioned a flight precipitation. 
(/) Alkali of tartar, fully aerated, rendered this foiution 
flightly turbid 5 but cauftic mineral alkali induced no change. 
(gj Lime-water, in a fmall proportion, did not affeft the 
tranfparency ; but in a larger produced copious clouds. 
The James’s Powder which afforded the foiution in water, 
011 which the experiments above related were made, was 
boiled a fecond time in eighteen ounces of diftilled water for 
Una two 
