142 



Dr. A. Oberbeck on the Friction 



Table V. Rectangular brass plate. 

 Distance between the glass sides 15 millims. 



Liquid. 



10 mm. 



k= 

 5 mm. 



h = 

 05 mm. 



h = 

 mm. 



— 05 mm. 





His 



1091 

 1499 

 2175 

 3171 



1185 



1566 



6028 



870 



2073 



1346 

 1736 



1188 

 1145 

 1103 



1225 



1144 

 2276 



1567 

 1483 

 1444 

 2310 

 3692 

 5292 



1463 

 1453 

 2120 



7338 

 2001 

 2711 



1943 

 2216 



2649 

 2545 

 2529 

 4013 

 5947 

 8155 



1312 

 1256 

 1938 

 6942 

 1476 

 2368 



2133 



1988 



2784 

 2637 

 2428 



4088 



1145 



6373 

 1362 

 2229 



1848 





KNO, in water/, 1-1223 



Na., S0 4 in water /, 1 • 1 69 ... 



K, C0 3 in water/, 1-367 



CaCl 2 in water/, 1*348 



Alcohol 2 



CuCL, in alcohol/, 0-878 



CaCl.; in alcohol /, 0995 



Oil of turpentine 



Water and alcohol /, 0-9708 

 Water and alcohol /, 0*9274 



From the comparison of the last three Tables it is evident 

 that the motion-resistances, In spite of the somewhat varying 

 conditions of the experiments, show on the whole the same 

 course. I will therefore content myself with annexing all 

 further inferences to the numerical values of the last table. 

 For the quicker survey of the frictional resistances, I have 

 represented them by delineations in figures 2 and 3. For 

 water and alcohol the means of the but little differing series of 

 experiments have been used. 



Fig. 2. 



3ol. CLj. 



3ol. Ka 2 C0 3 . 



Sol. N"a 2 S0 4 . 

 Distilled water. 



