1903.] land the Mechanical Friction of the Solvent. 341 



Fig. 1. 



-4O -30° -30° -10° 0° 70° 2C° 30 s 40 s 50°C 



In regard to the lowest curve, cf. 4. The fact that the greatest differences exist 

 for KOH and KF may be connected with the smaller accuracy of these curves. 

 But on this we will lay no stress. 



