1920.] PUBLIC DOCUMENT — No. 31. 47a 



It is expected that during the next year some of these studies 

 may be completed and the results published in the annual re- 

 port. 



New Investigations. 



During the past few years the poultrymen throughout the 

 State have had serious trouble and losses in their flocks as the 

 result of two diseases that appear to be somewhat new to the 

 practical poultrymen and the poultry pathologists. They are 

 frequently found existing simultaneously in the same individual. 

 The marked symptoms of the more common is a progressive 

 paralysis of the extremities, coupled with a loss of flesh. The 

 other disease affects the eyes, one or both, and invariably 

 causes blindness. 



To determine the cause of these diseases and their relations 

 to each other, together with means of prevention or successful 

 treatment, Dr. Gage and Dr. Hull, co-operating, have started 

 exhaustive and systematic microscopical, bacteriological and se- 

 rological investigations, which it is hoped may be productive 

 of results that will be published in a later report. 



