702 REPORT— 1900. 



4. The Constitution of Camphor. By A. Lapworth, D.Sc. 

 See Reports, p. 299. 



5. Tlie Degradation of Camphor. By Julius Bredt, 



6. The Camphor Question. By Professor Ossian Aschax. 



7. Report on Isomeric Naphthalene Derivatives. — See Reports, p. 297. 



8. Report on Isomorphous Derivatives of Benzene. — See Reports, p. 167. 



9. Report on the Relations between the Absorption Spectra and Chemical 

 Constitution of Organic Bodies. — See Reports, p. 151. 



10. Action of Alu7nininm Powder on some Phenols and Acids. 

 By W. R. HoDGKiNsox. 



11. On the Direct Preparation of (i-Naphthylamine. 

 By Dr. Leoxhard Limpach and W. R. Hodgkinsox. 



On nitrating- naphthalene in the usual manner there results not only a-nitro, hut 

 also an appreciahle quantity of the ^-derivative, as we have several times proved 

 by obtaining i3-naphthylamine. 



This note has, of course, a theoretical interest only, as /3-napbthylamine can so 

 easily be obtained from (S-naphthol by the NHg process under pressure.' 



The nitro-naphthalene obtained by direct nitration of naphthalene is reduced in 

 the usual way, and the naphthylamine converted into the HCl salt. The hydro- 

 chloride of a-naphthylamine is comparatively insoluble, whilst the hydrochloride of 

 the ^-derivative is very soluble. This allows of an easy fractional crystallisation, 

 the mother liquors containing much of the /3-salt. A good method of separation. 

 consists in treating these mother liquors with potassium hydrate in excess and 

 steam distilling. The steam distillate, after becoming- solid, or nearly so, is dried 

 by pressure between paper or on a pump, and then sublimed. |tJ-Naphthylamine 

 alone sublimes, and can in this manner be obtained quite pure, of melting point 

 112°, and boiling point 304°, It sublimes in beautiful pearly plates. 



■ The amount of ^-naphthylamine generally contained in the crude, nanhthj'lamine 

 seems to be about 5 per cent, or under. 



AVe have obtained by this method about a liilog. of pure |3-naphthylamine from 

 technical naphthylamine mother liquors. \ 



12. Interaction of Furfur aldehyde and Card's Reagent. 

 By C. F. Cross, E. J. Bevan, and J. F. Briggs. 



In a previous paper - it was shown that hydrogen peroxide reacted with furfural 

 to form a monohydroxy-furfuraldehyde as the main product, with simultaneous 



' Siebermann {Ann. 123, 264) also obtained jS-naphthylamine direct, but by a 

 somewhat roundabout process. 

 » Cliem. Soc.J., 1899, p. 747, 



