464 
CHEMISTRY: C. A. ROUILLER 
of the set most favorable for accurate measurement was X 4289.237 of 
titanium, 0.65 A from X 4289.885 of chromium. Measurements of this 
Hne from three different standards gave no difference larger than 0.001 A 
and usually agreed exactly. It may be said, therefore, that the meas- 
urements have given no evidence whatever of a mutual repulsion be- 
tween close lines when anomalous dispersion is active, such small appar- 
ent differences as were found being in the opposite direction. 
The same lines were tested in the regular furnace spectrum under a 
dispersion of 1 mm. =0.6 A to see whether the presence of the strong 
chromium lines affected the wave-length of the close line of titanium 
and calcium. The latter were photographed with and without the mix- 
ture of chromium vapor. The calcium and one titanium line gave dif- 
ferences of 0.002 A but these were opposite in direction and probably 
within the errors of measurement, while the other titanium line, closest 
of the three to a chromium line, agreed within 0.001 A when titanium 
was used alone and when mixed with chromium. 
The material in this investigation has been limited by the scarcity of 
suitable pairs of lines, as in addition to being separated by a small in- 
terval, the lines must be given strongly in the furnace spectrum and one 
of them must show high anomalous dispersion. The lines tested have 
filled these requirements and the measurements have at least shown no 
tendency toward a repulsion between such close lines under these 
conditions. 
SYNTHESIS OF THE BASE C3H4ON2 DERIVED FROM METHYL- 
AMINOMETHYL-3.4-DIHYDROXYPHENYLCARBINOL 
By Chas. A. Rouiller 
PHARMACOLOGICAL LABORATORY. THE JOHNS HOPKINS UNIVERSITY 
Received by the Academy, July 3, 1916 
Some thirteen years ago AbeP found that when methylamino-methyl- 
3,4-dihydroxyphenylcarbinol, 3,4-(HO)2C6H3CH(OH)CH2NHCH3 (epi- 
nephrine, suprarenine, adrenaline, the substance known as the active 
principle of the medullary portion of the suprarenal capsules) is slowly 
added to nitric acid (density 1.2) an energetic reaction takes place and 
there are obtained as chief products oxalic acid and an unstable nitrog- 
enous base in the form of a hygroscopic salt (probably the oxalate). 
With iodine trichloride this base gives a crystalline double compound 
which, although relatively stable, is also very hygroscopic, but with 
gold chloride is obtained a stable, beautifully crystalline chloroaurate. 
Abel analyzed this salt for carbon, hydrogen, nitrogen, gold and chlorine 
