176 H. B. TAYLOR. 



177*5 and after removal of 4*4 per cent, of fat the time of 

 flow was 162*6. The average decrease in the time of flow 

 was 6*22 seconds for every one per cent, of fat removed. 

 This would leave a time of flow of 154*43 seconds for a 

 solution of the constituents other than fat. 



In the analysis given above the percentage of solids not 

 fat is 9*30. The time of flow of the volume containing one 

 per cent, solid not fat is therefore 16*61. Putting these 

 figures in the shape of a formula we have, 



,. , , , , Time of flow - p.c. fat x 6*22 



p.c. solids not fat = — * 



lo'ol 



or p.c. solids not fat = Viscosity - p c. fat x '0665 



On applying this formula to the sample given above we 

 see from Table II that the agreement between calculated 

 and observed results is satisfactory, when consideration is 

 taken of the fact that the determination of total solids by 

 the usual method of drying in a steam oven is not altogether 

 satisfactory. In the determinations of the total solids 

 given below the drying was continued for three hours. 



Table II. 



Viscosit Total Solids Total Solids 



'' (weighed). (calculated). 



2*024 15*17 15*03 



2*006 14*65 14*70 



2*029 15*05 15*05 



1*951 14*46 14-14 



1*984 14*60 14*46 



1*953 14*29 14*25 



1*997 14*60 14*65 



1*961 13*88 14-01 



1*982 14*20 14*38 



1*997 14*61 14*46 



2*059 14*90 14*94 



2*042 14*54 14*65 



