Messrs. NEWTON, 

 CHAMBERS & Co. 



Ltd. maintain large and 

 up-to-date Laboratories in 

 which eminent bacteri- 

 ologists are continually 

 engaged on research work 

 in connection with the 

 problems of 



Household Hygiene 

 Poultry Hygiene 

 Veterinary Hygiene 



Brochures containing ex- 

 pert advice based on many 

 years' experience on the 

 above subjects will be 

 supplied free of charge to 

 users of Izal. 



