H. E. Annett and J. N. Sen 



427 



Rukminia's figures were 26-6 and 25'7 during the first and the second 

 periods and the variation from to 3-0. The figures for Lachminia 

 were 36-1, 37-4 and 36-1 for the three periods and the variation was 

 from to 3-9. 



The average figure for cows' (mixed) milk was 29-3 and variation 

 was from to 1-3. 



/•\l/SrARD CAKE 



Cows (Mixed) 



y\.--MVJTARO CAKE -- [- 



■ POPPt—--^-^ CAKE 



Bwfjalo Lafhnvirvia 



Chart V. Reiehert-Meissl numbers. 



A study of the changes in the values of refractometer readings and 

 in the Reichert-MeissI numbers of two consecutive samples shows that 

 generally speaking a fall in the refraction value is accompanied by a 

 rise in the Reichert-MeissI number and vice versa. In connection with 

 this relation between refraction and glycerides of volatile fatty acids, 

 which has already been noted by earlier observers, it may be pointed 

 out that the refraction increases in much greater ratio with increase of 

 unsaturated fatty acids^. 



Polenske numbers. Chart VI shows these figures graphically. Butter 

 fat of milk from cow Phulia had the average values 1-8, 2-0 and 2-4 for 

 the three periods, the corresponding figures for Lachminia being 2-0, 

 1-7 and 1-7 respectively. The variation was 0-0 to 0-4 in the first instance 



' Lewkovvitsch, Chemical Technology and Amilysis of Oils, Fiil.s and Waxes. Third 

 edition, 2, p. 944. 



