No. 6. DEPARTMENT OF AGRICULTURE. 439 



There is one thing to guard against in its use. It should not be 

 wsed in the stable just before milking because it will laden the air 

 with the odor, which is liable to be taken up by the milk. It should 

 be used a short time before, or just before turning them out to give 

 them a dose; and then a great many of these people milk about two 

 o'clock in the afternoon and early in the morning, and that appli- 

 cation they get in the morning lasts over the noon milking and, 

 consequently, they don't get but one spraying a day, and there is 

 no odor in the stable at or near the times of milking. That is the 

 only objection to the application of the repellant just before milking; 

 unless it is, as one man told me, that he had gone away and left 

 some of this material there for the use of his men, and they applied 

 it so heavily that they killed tw'O of the cows by shutting up the 

 pores and preventing perspiration, and the animals died from sun- 

 stroke. This is a thing that should not happen in the case of an 

 intelligent man. 



A Member: Is there any danger of affecting the eyes? 



DR. CONARD: I don't know that there is. It is not generally 

 applied in the face. I think it might, if driven right directly into 

 the eyes. 



MR, STOUT: I use just the common coal oil. I have a sprayer 

 at the cow stable and just before we want to go to milk we spray 

 the cows all over. By spraying the cows with that misty crude coal 

 oil it drives the flies away and kills them. It is economical and con- 

 venient. 



The CHAIRMAN: Those are all the questions we have and the 

 time has arrived to take up the regular program of the morning. 



The DEPUTY SECRETARY: Secretary Critchfleld requests me 

 to say that he owes you an apology for his having to leave before 

 this meeting adjourns. The Live Stock Sanitary Board convenes 

 in Harisburg this morning and the Secretary, being a member of 

 that Board, having immediate business to transact, was necessarily 

 called away. This same apology answers for Dr. Leonard Pearson, 

 the State Veterinarian, who is a member of the same Board, and 

 will account for his not taking part in the program. 



The CHAIRMAN: Since this program was made. Dr. M. P. 

 Ravenel, of Swarthmore, Pa., who was to have had the first topic on 

 the program for this morning, "The Relation of Bacteriology to 

 Dairying," has gone abroad and not yet returned. We will, there- 

 fore, take up the paper of Prof. Franklin Menges, of York, Pa., on 

 "Feeding Powers and Habits of Some Agricultural Plants." 



The paper of Prof. Menges is as follows: 



