ON DYNAMIC ISOMKKLSM. 115 



siSed by the addition of alkalies. This result is, perhaps, associated in 

 some way with the fact that nitrocamphor form? a stable sodium salt 

 whilst bromocamphor does not. 



(7) Camphoryl oxime — the isomer of nitrocamphor — -resembles it in 

 giving a very intense band in presence of alkalies, although the head of 



the band occurs at a considerably smaller wave-length ( 3650). The 



band does not appear in solutions of the oxime alone, and is not given by 

 the acetyl derivative. Camphoric anhydride, the parent-substance from 

 which the oxime is derived, is very diactinic and shows no band. 



Sidphonic-derivatives of Ca\nphor. 



(8) /> and tt sulphonic derivatives containing the group 



,CHX 



/ 



'2 '^S^-' 13n 



y-so,-c,H,-/ 



usually show an absorption band, but this does not appear in camphor 

 /3-sulphonamide and some of ics derivatives. The replacement of both 

 a-hydrogen atoms by halogens causes the band to disappear. 



D. — Camphorcarboxtlic Acid. 



Investigations of the mutarotation phenomena and absorption spectra 

 of^camphorcarboxylic acid and its derivatives are in progress, but as the 

 work is not yet complete it is proposed to reserve the discussion for a 

 subsequent report. 



The Transformation of Aro^natic Nitroamines and Allied Substances, 

 and its Relation to Sitbstitidion in Benzene Derivatives. — Report of 

 the Committee, consisting of Professor F. S. Kipping {Chairman), 

 Professor K. J. P. Orton {Secretary), Dr. S. Ruhemann, Dr. A. 

 Lapvvorth, and Dr. J . T. Hewitt. 



I. Transformation of Nitroaminohenzenes into Nitroanilines. 

 (With W. W. Reed, M.Sc , A.I.C.) 



The investigation of the transformation of 2-4-dichloro-lnitroamiDo- 

 benzene into "2 : 4dichloro-6-nitroaniline, reported on last year (Reports, 

 1907, p. 101) has been continued. 



Transformation of the Crystalline Nitroamine. 



The object of the new experiments on the transformation of the 

 crystalline; nitroamine was to determine with greater accuracy the 

 limiting value of the pressure of the gaseous catalyst, below which no 

 transformation occurred. The method employed was substantially that 

 described in last year's report, but more elaborate methods were used 



