BETWEEN THE VISCOSITY OF LIQUIDS AND THEIR CHEMICAL NATURE. 5Go 
inactive and active alcohols, and at hig'her temperatures it has the smallest viscosity. 
The curve of the active alcohol stands in the same relation to that of the inactive 
alcohol as that of isobutyl alcohol does to that of normal butyl alcohol. Of all the 
liquids examined, dimethyl ethyl carbinol exhibits in the most marked degree the 
Fig. 19. 
effect of temperature on the viscosity coefficient. At 0 °, the value of the coefficient 
is '14179 dyne, while at 101°'9, the boiling-point of the alcohol, the coefficient is 
only '00418 dyne, or only about ^ 4 -th of the value which it has at 0 °. 
The general character of the curves for the alcohols clearly shows that even in 
