234 



THE BACTERIOPHAGE 



No. 7. Horse No. 64. This horse had received injections 

 of atoxic dysentery bacilli — Flexner and Hiss — for two years. 



No. 8. Horse No. 65. This horse had received injections of 

 atoxic dysentery bacilli — Flexner and Hiss — for two years. 



No. 9. Horse No. 68. This horse had received injections of 

 atoxic dysentery bacilli — Flexner and Hiss — for two years. 

 No. 10. This horse was receiving injections of B. anthracis. 

 No. 11. This horse was receiving injections of B. anthracis. 

 No. 12. A carriage horse in Paris. 

 No. 13. A carriage horse in Paris. 



