134 Scientific LdeWgence. 



isopiithalic acid.— /A/'. Ji, rl. i'lu,,,. (,,..^ iii 



S. On the co),stitHfi<m of Cfonp/ior.—X \ 

 investigatofl the constitution of coniiMun <;i 

 the substance has lont; been known an.l li;iv 

 inod rei)eatC'dlv, lias tn'\cr yet l)cc'n -ali-fac 



•oiip, together with the groi 





is W eyl hav suggested. To test tliis (luestioii, camphoric acid 

 ivas distilled with soda-lime, in the expec-tation, that, were two 

 Jarboxyl groups present, (i'O.,)., wouhl be removed, leavinn the 

 lydrocarbon €j,II,g. Owiiiir, however, to the h)W temperature 

 It which camphoric acid breaks up into the volatile anhydride 

 m<l water, no liydrocarbon ua« obtained. The observation ot 



ia<'t which Alcy. 

 that ail known u' 





of campho 



lie acid as f 



secomlfact 



above frivon 



a homologue of Ijen/.ol,' 



form a mai 



n chain, tht 



chains. 31 





must take i 





tion of hvd 

 shows that 



zz£^: 



not united 



to the sam( 



fonnula of 



camphoric . 



/ i-«»'iV " ' 



