34 
THOMPSON YATES LABORATORIES REPORT 
14. Salted Haddock. — A litmus milk tube was inoculated with a small shred ; after several 
days incubation it had 'gone.' A Guinea-pig was inoculated with 2 1 c.c. whey. Result — 
Non-pathogenic. 
15. Salted Ling. — A litmus milk tube was inoculated with a small shred with negative 
results for B. enteritidis sporogenes. 
16. Salted Cod. — A litmus milk tube was inoculated with a small shred ; after several days' 
incubation it had 'gone.' 3 c.c. whey were inoculated into a Guinea-pig. Result — Non- 
pathogenic. 
Thus, in 16 samples of fish 6 gave cultures of B. enteritidis of which 5 were fatal when 
inoculated into Guinea-pigs. 
Grains taken from Sample Boxes in a Saleroom of a Wholesale Firm 
(See Plate II) 
Inoculated into milk incubated anaerobically 18 hours at 37 0 C. 
1. English Wheat. — Milk 'went' in intermediate way; putrid smell. Guinea-pig 
inoculated with 2 c.c. whey; died in 18 hours; extensive separation of skin; very little 
exudation. 
2. Foreign Wheat. — Milk 'went' typically ,• cream scattered ; slight putrid smell. Guinea- 
pig inoculated with 2 c.c. whey. Pathogenic but not fatal. 
3. Bran. — Milk 'went' well ; cream raised to the cotton plug. Guinea-pig inoculated 
with 2 c.c. whey. Died in 18 hours. 
4. Oats.- -Milk 'went' slowly and not typically. Guinea-pig inoculated with 2 c.c. whey. 
Pathogenic but not fatal. 
5. Ground Oats.- Milk 'went' typically. Guinea-pig inoculated with 2 c.c. whey; died 
36 hours; much separation of skin; little or no fluid. 
6. Oat Hush. — Milk after re- ; ncubation had clotted ; there was very little whey and 
no gas. Guinea-pig inoculated with 1 c.c. whey ; non-pathogenic. Not B. enteritidis. 
7. Barley. - Milk 'went' well; cream raised to the cotton plug. Guinea-pig inoculated 
with 2 c.c. whey; sloughing, ulcer. Pathogenic but not fatal. 
8. Malt, i.e., Kilned Barley. — Milk 'went' only after re-incubation, and then not well. 
Guinea-pig inoculated with 2 c.c. whey ; ulcer. Pathogenic but not fatal. 
9. Crushed Malt. — Milk did not 'go' ; a little whey formed, rest was clot; putrid smell. 
Guinea-pig inoculated with 1 c.c. whey ; non-pathogenic. Not B. enteritidis. 
10. Rye. — Milk did not 'go' till after re-incubation, when a yellowish whey formed with a 
putrid smell. Guinea-pig inoculated with 2 c.c. whey ; died in 36 hours with much separation 
of tissues. 
11. Maize. — Milk 'went' typically. Guinea-pig inoculated with 2 c.c. whey; died in 
36 hours with separation of skin and sanguineous fluid in the space. 
12. Rice (Java). — Milk 'went'; the whey had slightly putrid smell. Guinea-pig 
inoculated with 2 c.c. whey ; died in 36 hours with separation of skin and red fluid in the space. 
13. Rice ( Rangoon ). — Milk 'went' ; whey had butyric acid smell. Guinea-pig inoculated 
with 2 c.c. whey; died in 18 hours with very extensive separation of skin. There was little or 
no fluid in the space. 
14. Lentils. — Milk 'went'; there was a little yellowish whey with a butyric acid and 
putrid smell. The cream layer was not raised. Guinea-pig inoculated with 2 c.c. whey ; ulcer 
slightly pathogenic. 
15. Haricot Beans (Foreign). — Milk 'went' typically; the cream layer was much raised. 
Guinea-pig inoculated with 2 c.c. whey; died in 18 hours; very extensive separation of skin; 
little or no fluid. 
