224 Journal of the Asiatic Society of Bengal. [N.S., XVII, 
writer has investigated several series of new com- 
pounds derived from Camphorquinone and finds that both 
these rules are invalid. The molecular rotatory powers of 
derivatives of phenyliminocamphor are given in the following 
table :-— 
Derivatives of phenylimino- (M)a Chloroform solution phenylimino 
camphor. camphor=1750°. 
re A. a 
CH; Br Cl OCH; 
ortho ee ae 1183° 1382° 441°7° 612° 
meta rte ee 1665 1338 1338 ey 
para 2: ns 2177 1695 1768 3314 
osm<un<p; M<o<p<un; oc¢m<uncp; o<un<p. 
Derivatives of phenylamino- (M) Methyl] alcohol solution phenyl- 
camphor. q aminocamphor=1462°. 
CH; 
ortho 1030° ISTE 486°4 
meta 1504 1260 1261 
para 2001 15 
ocun<m<p; m<oCun<p; o<m<un. 
If the theory of Frankland were correct, i.e. the rotatory 
power were determined by the position of the centre of gravity 
of the nucleus in relation to the optically active group, we 
should expect : 
It is seen that the order laid down b y Frankland is followed 
only once in the case of tolyl compounds in methyl alcoholic 
ly, 
2 
although Bromine is a much heavier element than the methyl 
