386 Scientific Intelligence. 
no products volatile below 360°-400°, and was probably composed 
of polymers of some pier previa hydrocarbon, The acid itself, 
fractionated, gave aceton 5 gram per 100 cubic meters, com- 
ing from the hydration of tit ob The sulphuric acid collected 
upper oe of liqui , In amount about 25 grams to 100 cubic 
meters of gas, consisted of hydrocarbons, be ave on fractioning, 
benzene (with a little toluene) 2 per cent, mesitylene (C,H,,.) 
5 per cent, ASO (Cro H,,) ~ ae cent, tricrotonylene (C,,H,¢) 
30 r cent, residue xed t 
analysis : 
Benzene (C, eh in vapor 30000 to 35000 
Acetylene (C,H ) 1000 (about) 
Ethylene (C,H s 1000 to 2000 
Propylene (C,H,) a 
Allylene (C,H, 8 
Butylene (C, H,) and analogues traces 
Crotonylene (C, Hy) 31 +} ie 
Terene (CU 12 
Hydrocarb’s transfor’d into fixed polymers, est’d 83 
Diacetylene and analogous hydrocarbons, est’d 15) 
The author regards these products as derived according to the 
reactions upon which he founds his theory, from the four funda- 
mental gs odie A these, C2 H,, ethylene C,H,, dimethyl 
ethane CH 
dull red heat wi ae to “form aight C, 
2, rence rap Benes zene in Rosin Oil,—W atso x Sarr ‘has 
antned the light oils obtained as a bye-product in a refining 
