BETWEEN THE VISCOSITY OF LIQUIDS AND THEIR CHEMICAL NATURE. 591 
Homologues (continued). 
>]. Difference. 
Methyl iodide . .. 
399 ) 
, - “8 
Ethyl iodide. 
371 
! - 18 
Propyl iodide. 
353 1 
Isopropyl iodide. 
359 
- 21 
Isobutyl iodide. 
338 
Ethyl bromide. 
Propyl bromide. 
Isopropyl bromide. 
Isobutyl bromide. 
Ethylene bromide. 
Propylene bromide. 
329 
325 
329 
311 
5II 
4-50 
- 4 
- 18 
— 64 
Isopropyl chloride. 
275 
Isobutyl chloride. 
280 
Methylene dichloride. 
363 
47 
Ethylene dichloride. 
410 
Methyl sulphide. 
253 
- (lUj 
Ethyl sulphide. 
234 
Dimethyl ketone. 
232 
Diethyl ketone. 
222 
Methyl ethyl ketone. 
239 
- 5 
Methyl propyl ketone. 
234 
Formic acid. 
536 
- 151 
Acetic acid. 
385 
- 66 
Propionic acid. 
319 
- 10 
Butyric acid. 
309 
