320 Frances K. M. Daniaresq : 



viscosity of a sample containing 10 pei' cent, of solid particles ^^ilI 

 be 8/9 of that containing 20 per cent., so that a sample containing 

 50 per cent, solid particles would have a viscosity twice as great as 

 that of the plasma. 



An attempt was made to a2Ji)ly this theory to the viscosity of 

 cream, but it did not even approximately agree Avith the results 

 of the experiments for the viscosity of samjiles of cream of varying 

 fat content, since the viscosity of a sanqjle of 50 per cent, fat is 

 found to be nearly tAvelve times as great as that of separated milk. 



From the actual experimental results it would appear that at 

 t'onstant temjierature the viscosity is a quadratic function of the 

 fat content, and the i-elation between these two quantities may be 

 grapliically represented by a hyperbola. 



Cream from new milk 



Experiment A 



Experiment B 



