Chemistry and Physics. a ae 
the compounds of molybdic and apes a acids.—DE- 
vi a . cite: described a arkable series of 
ters 
acid by nitric acid, when boiled in nitro-muriatic acid, 
es a fallow liquid which on evaporation yields beautiful doubly 
ique prisms containing one equivalent (old style) of anhydrous 
sphoric acid and 20 equivalents of ae ee poles os acid, 
er With about 13°3 per cent of water. Two ot her hydrates 
sas ipitates under these circumstances s; the same is the 
yath the heavy metallic oxyds when the solutions are sufli- 
yacid, The yellow phosphomotybdate of potassium, thal- 
and ‘nelyeanrees§ ee joe general fo: 
: PO: “200105. 
O.PO,, 20MO,+24H0. 
nitric acid dissolves es salt; from the solution crystals are 
having the are ula 
ving are some of ee most beautiful salts of this secon 
phosphomolybdates: 
ag 59), age soar Rit 
6KO.2PO, .10MO,+14 
formulas are not divisible by two, as the salts in 
careful treatment with acids a new series 0 of | 
having: the general formula 
