i8 



herd reacted. Tliat only one of the old herd reacted Is encour- 

 aging, as it seems to show that the old herd is practically im- 

 mune. We have inoculated 22 calves, and at the time of the 

 test but one of these reacted, and the reaction in this case was 

 doubtful. Consequently we feel that we have a nucleus for a 

 herd that will be free from tuberculosis." 



Extract from Lecture delivered by Dr. Klimmer before the 



Society for Physiology and Medical Science, at Dresden, 



Germany. (Miinchener med. Wochenschrift, 1907, No. 31.) 



" ..... In the course of the last three years, 



about 400 calves were immunized without ill effects to the 



animals. Not taking into account the hypersusceptibility to 



tuberculin shown by subcutaneously vaccinated animals for the 



period of one year after vaccination, not one of the animals 



treated according to the von Behring method has reacted, 



while 33 to 40 per cent, of the control animals have become 



tuberculous every year. Since their immunization, ten of the 



calves were slaughtered because of other diseases ; they were 



found to be free from tuberculosis." 



p-rom the St. Albans Daily Messenger, July 14, 1908. 



" H. H. Hill, proprietor of the Frederickhurst Farms, 

 Swanton, has recently adopted the von Behring method, having 

 had his young stock treated. This he will continue to do until 

 he has built up an entirely immune herd, and all young stock 

 at the farm will be subjected to the treatment. By this means, 

 stock from his farm cannot carry any infection, nor can they 

 become infected if introduced into a diseased herd." 



From the Vermont Standard, March 26, 1908. 



" Capt. Elton A. Smith, owner of the Cloudland Farms, 

 who has one of the finest as well as one of the largest Jersey 

 herds in the state of Vermont, has recently immunized seventy- 

 five calves, and intends to continue as fast as the calves are of 

 proper age to immunize." 



J. H. Mead & Son, of the Marble Valley Stock Farm, West 

 Rutland, Vermont, in a letter dated March 3, 1910, says : 



" About a year and a half ago we had seven heifer calves 

 treated with Bovovaccine. They were tuberculin tested this 

 winter, and the result was very gratifying to us, as there was 



