764; Mr. H. D. Arnold on Stokes's Law for 



inertia terms become effective when the radius is about 

 seven-tenths of the critical radius. 



Fijy. 2. 



2-0 



^ 0-6 



0-4 



1 1 



POSE METAL IN COLZA OIL 



I 







■ — ■ 



yus by Stokes Law - upper curye 

 ^ by Iccd-eniery - lourer curre- 







X 



stt> by Focssiciole -u-bya 

 J)ia.7?ieteroflube o-bs cm 







o 



JP* ° 











Py 





























a'__ 







_ — "" 





























































T. 



d -0 



■0 



I -o 



3 -0 



4 -0 



5 -06 orip.-Qy 



?/lo/(/s //v CM. 



Fiff. 3. 



■04 -05 



rf/fO/i/S //v CM. 



•06 cm* -07 



Experiments with other Oils. 



Experiments with linseed oil whose viscosity as found by 

 Poiseuille's method was 0*535 gave results in close agreement 



