84 STATE BOARD OF AGRICULTURE. 



farmers who sow it with the fall seedinjT;. The large demand for copies 

 of the bulletin by farmers and fruit j^rowers shows that the efforts of the 

 station to furnish full and reliable information on this subject are ap- 

 preciated by our people. 



A copy of Fertilizer Bulletin No. 174 is appended as part of this report. 



Respectfully submitted, 



R. C. KEDZIE, 

 Chemist of Exj^eriment Station. 



AORICULTURAL COLLEGE, MiCH., 



June 30, 1900. 



RErORT OF THE BACTERIOLOGIST AND HYGIENIST. 



Director C. D, Smith: 



The work in this department since last July has been primarily to 

 close up work already outlined and under way. I have practically com- 

 pleted the work on tuberculosis, have carried a step farther the work on 

 "Pure ^lilk Supply," and have collected the available data concerning 

 the work with a gassy curd germ. What I have to say regarding these 

 topics has been presented in the form of bulletins. During the year I 

 have published a review of Bang's Work on Contagious Abortion. Al- 

 though this matter has ajjpeared in some periodicals, it seemed wise 

 that stock-growers should be more acquainted with the facts of the case. 

 In October of 1899 I concluded my experiments with "crown gall" on 

 Mr. A. Hamilton's farm at Bangor. These experiments were for the 

 purpose of establishing the infectiousness of the disease. The results 

 were confirmatorv. During the vear Prof. Tuomev's researches were 

 published, claiming tohave found the cause of the gall, and inasmuch 

 as I had not begun a systematic search for it, 1 have abandoned the work 

 till a more opportune time, or it may be completely. 



Besides the above systematic work, we have spent considerable time 

 in examining specimens of different kinds sent to this laboratory, I 

 have examined for different purposes during the past year fifty samples 

 of water, twenty samples of milk, four samples suspected of actinomy- 

 cosis, three specimens of suspected hog cholera or swine plague, three 

 dogs for rabies, three specimens of pus, one specimen of suspected 

 symptomatic anthrax, three specimens of cheese, three unknown speci- 

 mens or suspected contagious diseases not well established, and I have 

 tested three herds for tuberculosis, as well as examined ten specimens 

 for tubercle bacilli. Such work as this requires no little time and 

 attention. 



It is my purpose to concentrate my efforts during the coming year 

 and not to attempt to cover such a wide field. 



In closing this report, I desire to express my appreciation of the faith- 

 ful assistance of Mr. S. F. Edwards. 



Very respectfully submitted, 



CHARLES E. MARSHALL. 

 Department of bacteriology and Hygiene. 

 June 21, 1900. 



