44 



MASS. EXPERIMENT STATION BULLETIN 273 



Table 14. — Results of inoculation with Bekkefei.o W fii ritAiE of the first 



California viRirs. 



* Berkefeld W Filtrate of the first California virus used. 

 "* Virus from V 223» used. 



Table 1-3. — Resl^lts of inoculation with Berkefeld N filtrate of the first 



C-ALIFORNI.\ virus- 



Chicken No. V 2227 



Chicken No. V 2228 



Chicken No. V 2229 



6/29/30 Inoculated* 

 7/1/30 Symptoms of 



infectious trachitis 

 7/.5/30 Dead 



( Lesions typical of 



infectious trachitis) 

 7/8/30 

 7/12/30 



7/14/30 



Inoculated* 



Symptoms of 

 infectious trachitis 



Improved 

 Recovered 



Inoculated* 



No symptoms 

 of disease 



Inoculated** 

 Symptoms of 



infectious trachitis 

 Dead 



(Lesions typical of 

 infectious trachitis) 



* Berkefeld N Filtrate of the first California virus used. 

 '* Virus from V 2230 used. 



Table 16. — Results of inoculation with Berkefeld V filtrate of the first 



California virus. 



