1882. 127 Trans. N. Y. Ac. Scz. 
Curators, 
BERNARD G. AMEND, B. B. CHAMBERLIN, 
CHARLES F. Cox, HERMAN L. FAIRCHILD, 
Wo. H. LEGGETT. 
Finance Commz2ttee, 
T. B. CODDINGTON, PHILIP SCHUYLER, 
THOMAS BEAND. 
THE PRESIDENT elect addressed the meeting, with a brief review of 
the work and progress of the Academy during several years past, its 
growth in numbers and in means, the increasing activity of its meet- 
ings, and the various grounds for encouragement and. congratulation, 
albeit in the face of many obstacles, and the duty and responsibility of 
the members, and of all Jovers of science and intellectual culture in 
the community, to sustain and further the interests and aims ot the 
Academy. 
Prof. A. R. LEEDs presented the following communication : 
DIPHENYLAMINE-ACROLEIN. 
Twenty-five grms. of diphenylamine in alcoholic solution were 
treated with acrolein in excess, and, after standing, the loosely-corked 
flask was gently warmed for a number of hours, until the smell of 
acrolein had nearly disappeared. A bulky, dark red precipitate was 
formed. On boiling with alcohol a deep red solution was obtained, 
and the portion undissolved formed a tenacious, sticky mass, very 
awkward to work with. By repeated boiling with water under a return 
cooler, this mass gradually lost its sticky nature. It was then digested 
alternately with boiling water and alcohol, until at last the mass be- 
came pulverulent, and could be ground up in a mortar. The operation 
of boiling was then repeated many times, the mass being powdered 
after each treatment with water, until at length the substance in a state 
of purity was obtained. Its analysis showed it to be diphenylamine- 
acrolein, or, as it might be termed, diphenylamine-allylene. 
Found. Theory. 
Caron sees oe - 86.26 86.18 
Hiydropensi22 se hi. 6.29 6.36 
NUTHSEMiad i254: 7.28 7.45 
It does not melt or sublime, but is decomposed on heating, leaving 
behind a carbonaceous residue extremely difficult of combustion. It is 
very slightly soluble in alcohol, insoluble in ether, and readily soluble 
in chloroform to a dark red liquid. From this solution, and also from 
that in glacial acid, in which it dissolves to a red liquid, but less readily 
than in chloroform, it could not be made to crystallize. 
