624 
MESSRS. T. E. THORPE AND J. W. RODGER ON THE RELATIONS 
Viscosity Coefficients at Slope " 0 ^ 323 . 
{rj in dynes per sq. centim. X 10^). 
Homologues. 
'/■ 
Difference. 
Pentane . 
299 
19 
Hexane. 
318 
12 
Heptane. 
330 
6 
Octane. 
336 
Isopentane . 
286 
26 ! 
Isoliexane. 
312 
10 
Isolieptane. 
322 
Isoprene ... . 
295 
9 
Diallyl. 
304 
i 
) 
Methyl iodide. 
399 
5 
Ethyl iodide. 
404 
3 ' 
Propyl iodide. 
1 
407 
Isopi'opyl iodide. 
390 
i 
14 
Isobutyl iodide. 
404 
i Ethyl bromide. 
368 
4 
Propyl bromide. 
372 
i 
Isopropyl bromide. 
353 
I 
1 
7 1 
Isobntyl bromide. 
360 
1 
Ethylene bromide. 
455 
- 14 
Propylene bromide. 
441 
Isopropyl chloride. 
317 
14 ! 
Isobutyl chloride. 
331 
1 
Methylene chloride. 
372 
5 
Ethylene chloride. 
i 
377 
i 
