140 Scientific Intelligence. 
record of the total volume of passing liquid. The liquid on its 
way to the measuring drum passes through a receiver containing 
tion of the measuring drum. Thus, if water only passes through 
the alcohol counter, but in proportion as the lever ascends a greater 
proportion of the motion of the drum will be communicated to the 
alcohol counter, and this motion is rendered strictly proportionate 
to the alcohol contained in the liquid, allowance being made in 
the instrument for the change of volume due to chemical affinity 
between the two liquids. Several thousand instruments of this 
oti iscosity are th 
— factors, which determine the amount of the conductivity. 
4 C.F 
asex—Hnrr von Osermayer has recently 
communicated a memoir to the Vienna Academy on the relation 
of the coefficients of internal friction of gases to the temperature 
If we accept for the coefficients of friction pat ¢° OC, the formula 
