THIRTY-SEVENTH ANNUAL CONVENTION. 131 



We have been experimenting the last few months with .a 

 new chemical that we think will be of great aid in reducing these 

 acute inflammations of the udder. This material is injected with 

 a needle just above the udder and in an hour or two you can see 

 results. 



Member: Is it safe to insert those silver tubes? 



Dr. Peters : They are all right ; a mighty good thing to use 

 if you are careful. If you are not careful you can do more in- 

 jury to the duct itself, then you are running danger of causing 

 inflammation inside the cow. When the quarter is inflamed you 

 jab one of those milk tubes in you break the tissue. If you do 

 not keep it open you will have a closed tit. 



Member : Would you leave the tube in ? 



Dr. Peters : There is the great trouble. You must have a 

 specially constructed tube to leave it in. You must have one 

 that has projections so that it will stay there, or you must have 

 one to tie around the inflamed part. The thing to do is to leave 

 the tube in and work it often to see that it is kept open and you 

 will have a free flow. With the average tube the point is sharp 

 and that is where the trouble will come in. With a lead probe 

 the chances are that you will hurt the tissues. 



Member : How much boracic acid do you use ? 



Dr. Peters : 2 parts of boracic acid to 98 parts of water. 



Member : What causes the spider in the teat ? 



Dr. Peters : All these formations are brought about through 

 an injury inside, then of course inflammation leaves a growth. 

 These growths are dangerous if they come in contact with in- 

 flammation ; it adheres there. These quarters are subject to vari- 

 ous kinds of infection. 



