8 JOURNAL OF THE 



These fractions above 195° were heavy, of a brownish yellow 

 color, and not showing much decomposition on standing. This 

 third method of broniination was tried several times with simi- 

 lar results. Analyses of two proportions of the fraction coming 

 over about 210° gave 56.4 per cent, and 58.0 per cent, of bro- 

 mine; C 7 H l5 Br contains 44.69 and C 7 H 14 Br 2 62.02 per cent, of 

 bromine. 



The results may be summed up thus: If we take into consid- 

 eration the boiling points of the primary bromide (178.5°), sec- 

 ondary bromide, 164°-167°, and dibromide or heptylene bro- 

 mide, 209°-211°, it will be seen that no mode of broniination 

 tried yielded the secondary bromide alone. The first vields 

 principally the secondary; the second yields secondary and pri- 

 mary, whereas the third yields mainly compounds having a high 

 percentage of bromine, probably several isomeric bromides of 

 heptylene. The action of bromine then seems to be quite simi- 

 lar to that of chlorine. 



I'niversity of North Carolina February, 1888 



No. XL. 



SOME NEW SALTS OF CAMPHORIC ACID. 



G. W. EDWARDS. 



This research is a continuation of the one in Volume IV. 

 Part I, page 52. The following additional salts were prepared: 



Aluminium Camphorate. Pure aluminium hydroxide was 

 prepared, and this was then boiled with camphoric acid in ex- 

 cess, using only a little water. The resulting aluminium cam- 

 phorate is white and quite insoluble. It was dried at 100° and 

 analyzed. 



< laculated for Found. 



AI 2 (C,oH 14 o 4 ) 3 . I. II. 



Al 8.33 8.16 8.24 



