: 
Chemistry and Physics. 365 
thylated monamines—namely, dimethylated toluidin, xylidin, cu- 
midin and cymidin; in symbols the compounds: 
Dimethyl— 
*1s €,H 
Anilin, eH), LN, 
= (CH 
Toluidin, (OTH), |N= (ern), ) EN, 
Xylidin, Gstle Lm Gope(OMsde Ly 
Camidin, (6°94), lN=G n° 3)s LN, 
Cr «St, = om 
The terminal member of this group is still wanting, and would 
have the formula 
o(CH,), nay 
Gy eet (CH) 
a poreny sylidin Prison with the coe but only one isomeric 
hit. Thus we already know a solid and a fluid modification of 
toluidia, By treatment with methylic iodide, solid toluidin yielded 
a dimethyl base, which in many respects resembled that mentioned 
above, but which yet did not appear to be certainly identical with 
) i I derived from a bases ap- 
it, although the tertiary monamines 
peared to exhibit no differences whatever. The ors promise 
a further i investigation of the whole subject, and shemale will look 
with the greatest interest for their re ence 
Chem. Gesellschafi, Jahrgang iv, p. 7 
4. On the derivatives of hydric Powphide which Sindee to 
ethylamin and diethylamin.—A. W. Hormann pone succeeded in 
, P 
ae 2H,I+2Ph,I4+-Zn0 = 2P(€,H,)H; 14 Znl,+0H,. 
In a a certain quantity of diethyl phosphin is 
always f formed, th reaction being expressed by the equation: 
2€,H “LLPH, I+Zn0 =P(€,H,),H.1. Zul, O8,. 
The tertiary and quaternary derivatives of ———— _ not 
formed in this reaction. These, Hofmann already shown, 
might be obtained D the action of the aechate themselves on 
phosphonic iodide. The e separation of the mono- and di- compounds 
