2G8 STATE BOARD OF AGRICULTURE. 



EEPORT OF BACTERIOLOGIST. 



Director R. S. Shaw: 



Dear Sir — In my annual report for tlie previous year there were out- 

 lined the projects under investigation in this laboratory. There have 

 been no changes in the general plan during the present year. 

 Mr, Cooledge reports on his Adams project, la, as follows : 

 "One third of my time during the past year has been given to technical 

 research (Adams). I have continued my studies upon my general prob- 

 lem, "Effect of Disease in the Cow on the Milk." Additional facts which 

 have developed in this work are embodied in the following papers and 

 published articles : 



Further Studies upon Bact. abortus Infected Udders. 



Presented at the meeting of the Section of Sanitary and Medi- 

 cal Science of the Michigan Academy of Science, March, 1917. 



A Study of the Milk in Bovine Infections Abortion. 



By Ward Giltner, L. H. Cooledge, and I. F. Huddleson. Pre- 

 sented at the meeting of the American Veterinary Medical 

 Association, Detroit, Michigan, August 22, 1916. Published 

 in the Journal of the American Veterinary Medical Associa- 

 tion, November, 1916. 



The following articles have been submitted for publication : 



Facts Disclosed in a Study of the Presence of Bact. abortus (Bang) 

 in Milk by Means of the Agglutination Test, to the Journal of 

 Medical Research. 



A Study of the Presence of Bact. abortus in Milk, as Technical Bul- 

 letin 33, from this Station. (L. H. Cooledge.) 



MILK CONTESTS IN MICHIGAN. 



The work supported by Hatch and State funds done under Mr. Cool- 

 edge's direction is as follows : 



"One third of my time during the past year has been given to work of 

 a popular nature, (Hatch). This work has consisted in examination of 

 samples of milk submitted to the laboratory for examination, corres- 

 pondence with daii\yinen along the line of dairy hygiene and the judg- 

 ing of milk contests. 



"A milk contest was judged for the Highland Park Board of Health in 

 December. While this was the first contest to be held by the village 

 the samples of milk scored very high. This is probably because many 

 of the farmers in this section have profited by entering the numerous 

 milk contests that have been conducted by the Detroit Board of Health 

 and by the State Fair Association, and because Detroit and Highland 

 Park milk inspectors have been working with these dairymen for many 

 years. The results for samples entered by the dairymcH follow: 



