30 J, M. Ordway on Waterglass. 
6, b—94 pts. of the supernatant liquor of a,—with 19 of — gave 
10-3 pts. of a hard, soluble precipitate containing 52 p.c 100 Sizio. 
6, ¢c.—100 pts. of the. supernatant liquor of 6,—wi ith 20 of sea »—gave 
‘13 pts. of a soft precipitate containing 54 p.c. of Kioo 
7,@.—100 Pe ef : solution made from the product of 6, hi aan conlaay 
ing 10 p.e 100 Si. — with 10 pts. of aleohol,—gave 0°6 pts. o 
solid sae aac was not analyzed. 
7, b.—102 pts. of the supernatant liquor of a,—with 20 of alcohol,—gave 
12°8 pts. of a hard, soluble precipitate containing 53 p.c. of Kuo Sizss. 
8,a.—100 pts. o of - sélution made from the product of 7,6,—and con- 
taining 10 p. ¢. of Kio Sizss,—with 8 of alcohol,—gave 0°55 parts of a 
alas whieh was not analyzed. 
pts. of the supernatant liquor of a,—with 17 of alcohol,—gave 
: 2 pts. of a hard, soluble precipitate—containing 53 p. c. of Kioo Siszo. 
Gipied pts. of a solution made from the product of 8, 6, so as to con- 
tain 10 p. ¢. of Kioo Sizzo,—with 25 of alcohol,—gave a very hard pre- 
cipitate soislont 49 p.c. 0 
This substance, while ig dimclved ‘completely i in cold water, yielding 
a perfectly clear solution ; but exposure to the air for several days, ren- 
dered the superficial jst aa insoluble. 
» Sesquisilicate of Soda mixed with Caustic Soda,—with Alcohol af 
sp. gr. 0°825. 
‘10.100 pts. of a re yaade to contain 18 p. c. of Naioo Sizs —with 
32 of alcohol —gave 6 3 pts. of a very thin precipitate containing 
24 p. ce. of Naw Sia 
os - This precipitate,—as well as the four following,—retained the coloring 
na) matter and a part of the foreign salts which were present in the crude 
7 lutions u sed. 
-11.—100 pts. of a mixture containing 20 p. ¢. of Nai Siso,—with 36 of 
oS. “Hae Bon s—gave 643 pts. of a thin precipitate containing 25 p.c. of 
he aio S 
3 A 22 p. ¢. caustic soda earpete is dred thrown down by — but 
“that no such cokuphsltion could o with the weaker liquo 
omission of the silicate. 100 pts. of a solution uae 145 p. ¢. - of 
sie heirehen bts. of a mixture containing 10 p.¢ of Naivo Siuy-—with 30 
- of aleohol,—gave 11-8" pts. of a thin precipitate containing 32°6 p. ¢. 
Naioo Siss. 
12, 6.—The supernatant liquor of a,—with 20 pts. < aleohol,—gave 5°3 
pts. of a precipitate containing 34 p.c. of Nai 
Fe 100 pts. of a mixture containing 9 p. c. of Ni too Biro—with 26 of 
=a 15°4 pts. of a liquid precipitate ecbkibltig 87 p. c. of 
* ms aa 
s. of Sandee containing 4-2 p.¢. of Natoo Sith 40 of 
; — of a —— precipitate containing 42 p.c. of 
