C. M. Warren on the Volatile Hydrocarbons. 
2p Sertss.? 
F ; Determined Calculated boiling- Difference between 
ormula. (2) boiling-point. sees 1 rig Ss eran bees 
° ° rs) 
C, H,, 8-9 15°2 6-7 
C,oH,2 37-0 33:6 3-4 
C,2H,, 68°5 520 165 
C,4H,, 98-1 10-4 207 
CicHi, 127-6 88°8 38°8 
3p Serres. (Not yet completed.) 
3 Calculated boiling- | Difference between 
Det d inj ; 
Formula. boiling pou mae ied s mearsragen pelt 
°o ° °o 
20420 174°9 - 184-0 109° * 
C,.H,. 195°8 2024 66 
Co,Ho4 216-2 220°8 46 
a Hy 
in fact. 
bons of the formula 
who found that it would place the boiling-point of benzole at 
285°'6, 1. e. 205° above its actual boiling-point. 
vA 
Ci es 
A cursory examination of the last three tables will suffice to 
show that, so far as regards the hydrocarbons of the formu 
and Cy Ha,,, the theory of Léwig also has no foundation 
That his theory did not hold good with the hydrocar- 
was observed by L6 
Lowig himself, 
: 7, 
Or tHe CaucuLatep Boittne-potnts or HyprocarBons BY GERHARDTS 
HEORY. . 
We come finally to test the law of Gerhardt, above mentioned. 
t to find this more in accordance with facts 
of more 
ypothesis of Schréder or that of Lo 
eneral a 
pecially with reference to a 
presented in the following tables will show, however, that this 18 
other 
pplication, an 
es of substances. 
wig, 
Inasmuch as this law was especially designed to apply exclu- 
than either the 
both of which claimed 
d were framed more €S- 
The facts 
1. Hydrocarbons from Pennsylvania Petroleum. 
Se te Ist 
en Determined | Ualculated boiling- ) Ditference betw 
S| Pelngepoine | Pom by Sertardi anteater aint 
o 
Cy He 00 (?) - 8-0 
Cros 30°2 1236. 175 
CoH, 613 33-0 28'3 
Cag 90-4 53°5 36-9 
CieHis 119% 74-0 45°5 
C,H. —150°8 94°5 : 
‘See foot-note on page 227. 
lee 
