lower willi a capacity of about l.Vr for holding ii, ( . m jij- ail( j 

 acid, and the top with a capacity of about 40cc for holding 

 hot water to he used to elevate and keep fluid the hm-i of 

 fat. 



"The reading tube terminates in an inverted funnel so 

 fitting into the top part of the bottle by means of a trap to 



Fig. 121. 



allow water to pass through, but effectually prevent the loss 

 of fat. The tube is divided into sixty parts, each part repre- 

 senting one- tenth per cent fat with the zero mark at the top. 



"The illustration sufficiently shows construction of work- 

 ing parts. The maximum speed is about 2,000 revolutions 

 per minute, and the working speed 1,500 per minute, attained 

 by 60 revolutions of handle per minute. The crank is remov- 

 able. A substantial and handsome mahogany box with 

 handle is fastened by means of hooks. The entire machine 

 boxed occupies 8x8x9 inches. 



"In the box may be carried tw ? o 100 cc bottles of acid (40 

 tests), a combined milk and acid pipette, a lactometer and 

 thermometer. 



