10 MR. W. R. JEKYLL ON THE ACTION OF 



(a) 0*2452 salt gave 0*1595 silver. 



(b) 0*2745 salt (from mother liquor) gave 0*1781 silver. 



Found, 

 (a) (b) 



65*05 64*88 per cent, silver. 



On the further addition of sulphuric acid to the contents 

 of the retort, no acid distillate was obtained. It is thus 

 seen that in this second experiment, where an oxidizing 

 solution was employed of only one-half the strength used 

 in the former one, precisely the same results are obtained, 

 viz. carbonic and acetic acids — which, it may be remarked, 

 are the same oxidation products as were yielded by the 

 oxidation of the pseudoxide. 



The diluted sulphuric acid, which had been used for 

 acting upon diallyl, was neutralized with barinm carbonate, 

 filtered and evaporated to dryness on a water-bath ; but a 

 sulpho- organic barium salt was not obtained. 



Polymers of Diallyl. — After distilling off the pseudoxide 

 of hexylene from the diluted acid, a layer of hydrocarbons 

 remained on the surface of the liquid, from which they 

 were separated by means of a stop-funnel. The hydro- 

 carbons were dried over calcium chloride, and found to 

 to boil at between 200 and 300 . After several distilla- 

 ations over metallic sodium, they were separated into three 

 portions, boiling at from 205°-2i5°, 240°-245°, and 275 - 

 285 . These hydrocarbons invariably left a slight residue 

 on distillation. The analyses below show that^ they have 

 an empirical formula of C 6 H io . 



(1) Boiling-point 205°-2i5°. 



(a) 0*2168 substance gave 0*6941 carbonic acid, and 0*2445 water. 



(b) 0*2340 „ „ 0*7498 „ „ 02593 



Found. Calculated for 



(») ( b ) C 6 H 10 . 



C 87*31 87*38 87-8 



H 12*52 12*31 12*2 



99'83 99'69 IOOO 



