282 F. W. Clarke—Todates of Cobalt and Nickel. 
ear iodate, Bal,O,, ep Ce and carefully dehydrated, 
2179 , 51853, 5°2855, a at 18°. 
Siver jodate, Agl0,, precipitated, 5°4023, 16°5°. The same salt 
recryst stallized from ammonia gave 5° 6475, 14:5°, 
Lead iodate, PbI,O,, p bay ge a 6°1783, at 19°, and 6°1322, 21°. 
For this salt Schroder found 6-209. These three iodates 
were weighed in wate 
Ammonium Foie os NH,. io,, small crystals, 3°3085, 21°; and 
3°3372, 
Mr. Falierton “alls determined the specific gravities of two 
iodides which had previously been examined by Boédeker. 
CdI,, in rey beautiful pearly scales, gave 5°9857 at 12°, and 
59738 at 13°5°. Bodeker’s figure is s 4576 at 10°, making the 
salt oe than either of the elements contained in it. This © 
fact of itself would tend to throw suspicion upon Bédeker’s 
results. 
Bismuth iodide, Bil,, gave Mr. Fullerton 5-9225 at 16°, and 
58813 at 175°. Bédeker found 5°652 at 10°. Here again I 
regard Mr. Fullerton’s figures as the more anos rthy. 
he ae double and compound cyanides were deter- 
mined by . 
peace potassium tenia: K NAO, H,O; 1°875, 11°; and 1°871, 
Potassium pacaeeuce, K ge Oe 3H,0, slightly moist, 2 Lig 
13°, and 2°4548 The disc repancy between the tw 
ticgeice aig ns 19 the moisture which could not ae 
yeaa um ee ide, NH .CyS, 1299 and 1°316 at 13°. 
Potassio-chromic sulphocyanide, K,CrCy,,8,,, 8H,O, 1°7051, 17°5°; 
17107, 16°. 
Potasio-patni sulphocyanide, K,PtCy,S,, 2-370, 19°, and 2°342, 
Sodium nitroprusside, 1°6869, 25°. Schréder found 1-710 and 
1-716 for this salt. 
Four nitrates were determined by Mr. H. Laws. 
NiN,O,, 6H,O, gave 2-065, 14°, and 2-037, 22°. 
n A 
CdN,0,, 4H,0, gave 2°450, 14°, and 2-460, 20°. 
BiN,O,, 5H 0, well crystallized, gave 2°823 at 13°. 
This salt has also been determined by Playfair 08 goa. 
who found 2°736. Their method of working, nome was 
less reliable than that with the specific gravity bot 
The bromates were taken up by Miss E. D. a with the 
following results. 
KBrO,, 3°323 at 19°. Kremers found 3°271, and Topsoé 3-218. 
The agreement is tolerable, 
AgBrO,, 5°1983, 16°, and 5°2153, 18°. 
BaBr,O,, carefully dehydrated, 40395, 17°, 3°9918, 18°. 
