58 



BULLETIN 51, U. S. DEPARTMENT OF AGEICULTUBE. 



§■ 

 1 





Light-green white; no odor. 



Bad odor. 



Bad odor; dirty shell. 



A cracked egg. 



a 



03 

 ra 



O 



0) 



S 













S °2 



cow 

 <U C3 2 













66 



Co ,__, nj 



ill 



Ph 



1 













.2 













Gelatin 

 liquefying 

 . organisms 

 per gram. 









o 

 o 

 o_ 

 cT 

 o 



_fl 



o 



Number 

 of gas- 

 producing 

 bacteria 

 per gram 

 in lactose 

 bile. 



1,000,000 



in 100 



OinlO 







.s'Z 



d 



CO 



o 



8 



o 



°. 



co~ 



o o 



8 § 



O rn" 



OOO O 



o_o o_ 8 

 d 1 o'oo" o 



°o 1 ° = ~ § 



\ oi . 



-H . . . (M 



2||o S3 



1 



o 

 03 





3 

 ^ 



1 



1 



r 



CT 



5 

















1 



o & 



o 



o 





OOO 



<otd 



OOO 







O T-( 



OO 



o ' 







O rn 



88 



O * 







20,000,000 



650, 000 



30, 000, 000 



100,000 



10, 000 



100 







55,000,000 



1,800,000 



210, 000, 000 



4. 700. 000 





100,000,000 



2,700,000 



210, 000, 000 



20,000,000 



I^ '■ r-l 

 .(N 'l-l 



(N ; 



S >)0 S o 



2 cs-a g-a 





N IMCOCO 



CO CO in 

 'Tf TT -^ 



i 





