-^ nhich imiv be U-rnied nR'tavau;i.l:»tr.. pvrox .UKLhii..^ an-l 

 iMlato. 'So.lio ortliov:inaa:iTe ^ fnrnu-'l \n f.,sin- va.ui- 

 .Ni.le witli so.lic .•avl.oiinto, .Ihsnh i,,.: in uatrr ami |.ro- 



2(Ve^Xa3) + 01I, = V2e7Xa,+2NaI10. 

 The orthoviXTuidatos aro mostly insoluble compounds. Pyro- 

 ^^^'M'bite of sodium has the fonnula V,^ejXii4 + lBeiI„, ami \i 

 ('n->tnllinp and easily soiul>le in water. When heated with car- 

 bonic dioxide it yields sodie earbonate and nK4a\aiiadate : 

 V2e,Xa,+fM>,=-2Ve3Na+('-),Xa,. 

 The author deseribes various salts of \aiia>!i(' a<i.!. ami <H>iiits 

 out the fact that the order of stability is at onliiiarv tnni.eiMturt-, 



(latos. wliieh irtiaetlv the* reverse orthe ord'cr in tl>e 'caM' of the 

 piio>phates.— ./o^/m/f/'o/ Chem. Socitfi/, vol. ix, p. 2:!. w. .,. 



0. 0)1 ft Tieic 2'tlati man chloride. — Sidxkv A. Norton lias uiven 

 Mwliminary notice of a new chloride of platinum, diM•<.^..^Ml l)y 

 ''"n in Prof. Kolbe's laboratorv. If one molecule of phitiuic chlo- 

 ride 1)0 mixed in acpu'ous solutioT. with two molecules of silver ni- 

 Jr:ue. the yellow compound of platinous chloride with silver chloride 

 7^"l2, AaCl, desc-ribed bv A. Cammeille (C. JJ., Ixiii, 55;]) is 

 thrown down. Tlie vellowish-red liquid above contains no mIvit ; 

 on evaporation, it evolves acid vapors abundantly, aiul when -uth- 

 ciently concentrated, deposits on standing over sulplmric a<'id, 

 ^t^autiful largo well-formed red crystals, which appear to bo 

 ")^>n<)chn,c in form. These crystals contain ouly platinum and 

 niorine— in the proportions of platinic chloride-and water i lu-y 

 jre distmguishable from the ordinary platinic chlonde by being 

 "on-deliquescent in the air— even slightly efflorescing m dry air— 

 ^°tl by the fact that their aqueous solution is not precipitable by 

 jmtnomum chloride, until after long standing or on the application 

 ^^beat. Korton suggests that this compound may be a hydrated 

 ST"^/^^ hydrochlorate, PtO^, 4HC1, aq. or a (Thlor-platmic 

 jxidehydrochlorate (PtCL)O 2HC1, aq. isomeric with the ordinary 

 '^yirated chloride. Investigations now in progress will settle the 



