1882.] 



On the Normal Paraffins. 



405 



Muybridge (Eadweard) Attitudes of Animals in Motion. Arranged 

 in slips for tlie Zoetrope. The Author. 



Oppelt (Gustave) Navigation Aerienne par les Ballons — Systeme 

 Oppelt. 8vo. Bruxelles 1882. The Author. 



Portrait of the Rev. Charles Turnor, Compiler of the " Collectanea 

 Newtoniana." Also a Medal, formerly belonging to the same 

 Rev. Charles Turnor. Mr. Anthony Hanmer. 



December 21, 1882. 



THE PRESIDENT in the Chair. 



The Presents received were laid on the table and thanks ordered for 

 them. 



The following Papers were read : — 



I. " On the Normal Paraffins. Part IV." By C. SCHORLEMMER, 

 F.R.S., and T. E. Thorpe, F.R.S. Received December 5, 

 1882. 



(Abstract.) 



This communication contains the results of an inquiry made to 

 determine the constitution of the heptane which one of them found in 

 the resinous exudation from Pirtus Sabiniana. The pure heptane was 

 converted into a mixture of chlorides, and these were transformed into 

 the corresponding primary and secondary alcohols. The alcohol was 

 then oxidised, and from the analysis of the silver salts it was proved 

 that Pinus heptane had yielded primary heptyl alcohol and methyl- 

 pentyl-carbinol, exactly as in the case of heptane from petroleum. 



A second portion of the chlorides was converted into heptylene, 

 boiling at 98" 5°, which, unlike the hexylene of analogous constitution, 

 combines only slowly with hydrochloric acid. The heptylene by 

 oxidation was shown to be butyl-methyl- ethylene, C 4 H 9 CH=CH.CH :j ; 

 it had been formed from the secondary heptyl chloride — 



C 4 H 9 — CH 3 — CHCl.CHg. 



The results of the investigation afford further evidence of the fact 

 that when chlorine acts upon a normal paraffin, not all the chlorides 

 indicated by theory are formed, but only the primary chloride, and a 

 secondary chloride, which contains the group — CHCl.CHg. 



VOL. XXXIV. 2 E 



