260 



Testing Milk and Its Products. 



III! 



^ s ! o 



QO o ft Si oo 



10 oo o 



rH rH CM 



CO 



IS -^ 



10 



co 





CO 



10 CM t- 



co co co* co co co co 



iq 10 



GO OS 



010 

 CM (M 



CM CO CM <M tlJLCO 



tH iH iH i I - ?; i I 



do 



cc 



10 



CO CM CM CM T-i 







