134 Scientific Intelligence. 
on heating deposits an abundant precipitate of a double salt. Erbic 
sulphate yields larger crystals of a fine rose color, which like the 
sulphate of yttrium and of the cerium metals are less soluble in hot 
aj 
than in cold water— Bulletin de la Société Chimique, a p- 
193. w. 
6. On the transformation of right tartaric acid into rechetis 
acid.—Pasteur’s classical investigation of the four different modifi- 
cations of tartaric acid are familiar to all chemists. J UNGFLEISCH 
expensive reagent like cinchonicine — “sey ch may be used with 
: 
purified by a second crystallization. The mother liquor from 
the crystals contains some unaltered tartaric acid, some inactive 
acid, and a little of the products of decomposition. The tempera- 
ture must be kept exactly at 175°; in this case the traihaformati@n 
is almost com plete. e racemic acid obtained in this way is 
identical with that eeu onl urine. hen converted into 
steel or iron Paap In this manner 650 —— of tartaric acid 
7. Ge 
On the conversion of anilin into toluidin.—A. W. Hormann 
has succeeded in converting anilin into toluidin by the following 
process. Anilin is first converted into methyl-anilin by means of 
iodide of methyl. The salts of methyl-anilin—the experiments 
were made with the chlorhydrate and iodhydrate—may be he pe ted 
for hours to 220°-230° C. without change, but if the tempera 
"is raised to that of the melting point of lead (335°), the er is 
transferred from the amide residue to the benzol residu ue, or in 
other words, the methyl-anilin is converted into toluidin 
C,H, . CH, . HN. HCl=(C,H, . CH,)H,N , HCL 
The toluidin obtained in this way, after recrystallization, fused 
at 45°C. It is remarkable, however, that iodhydrate of. methyl- 
on, Hofmann believes ist he has obtained a sip shaving ¢ he 
jones [C,(CH,),]H,N, and a hydrocarbon with the formula 
«(CH Hs) rae — Berichte der Deutschen Chem. Badeenah. sahngg 
y; ‘ 
