BETWEEN THE VISCOSITY OF LIQUIDS AND THEIR CHEMICAL NATURE. 605 
Allyl Alcohol and Acetone. 
ycP. 
i 
! Difference. 
Alljl alcohol . . 
659 
-239 
Acetone. 
420 
Dichlorethanes. 
1] d~. 
Difference. 
Ethylene chloride. 
795 
-121 
Ethylidene chloride . 
674 
Isomeric Ketones. 
//Cf. 
Difference. 
Diethyl ketone . . 
533 
‘-!2 
Methyl propyl ketone 
565 
Aromatic Hydrocarbons. 
,, cl-. 
Difference. 
Ortho-xylene . 
660 
-70 
Meta-xylene . . 
590 
4 
Para-xylene. 
594 
30 
Ethyl benzene. 
624 
Conclusions relating to Molecular Viscosity at the Boiling-point. 
(1.) The foregoing tables make it evident that, with the exception of the alcohols, 
the clibromides and the lowest members of homologous series, an increment of CH 2 
