Patenting Surgical Devices
Journal of the American Medical Association
berculin test has been given, followed by a demonstration of the lesions to be found in reacting animals. Such dem¬ onstrations have been given for the last ten years. They have also been held in connection with the Farmers' Course, which is attended each winter by from 600 to 800 farmers from all parts of the state. The interest which was aroused by these demonstrations and the results which followed in the widespread use oí the test by the individual farmers, led to the giving of more public
... ing of more public demonstrations by the state authorities in connection with the state fair, with county fairs, at farmers' institutes and at county agricultural schools. For the last five years a considerable number of such demonstrations have been given annually. The demand for them has been far in excess of the available time and funds of the state authorities. The mam phase of the question brought out in connection with these demonstrations has been the financial rather than the hygienic. The farmer was informed of the loss he was certain to incur if the disease were present in his herd and no effort were made to eradicate it. He was told of the dan¬ ger of purchasing diseased animals and of feeding mixed creamery skim milk to his calves and kogs. *He was shown apparently healthy animals, which had reacted to the test. These were slaughtered in his presence and the lesions dem¬ onstrated. An effort has always been made to show animals hav¬ ing the disease in the early stages and also in animals having generalized tuberculosis. These demonstrations have always resulted in a large number of herds being tested. These tests have been voluntary in every case. In some of the counties in which the public demonstrations have been most numerous, from 10 to 60 per cent, of the milch cows have been tested. At the International Congress on Tuberculosis, photographs of the public demonstrations, given in various parts of Wis¬ consin, charts showing the number of such demonstrations given annually, and maps of the state illustrating the re¬ sults of the demonstrations on the use of the tuberculin test, were shown in the Wisconsin exhibit. This line of work has been emphasized because the state authorities have believed that when the farmer is convirrced of the economic importance of bovine tuberculosis, he will act, and the hygienic phases of the question will be solved because of his effort to protect himself. Cities then will not-have to provide elaborate ma¬ chinery for the enforcement of the ordinances requiring that cattle be tested, for, to save his own herd, every farmer will errforce it for himself. There is one creamery in Wisconsin, and we presume it has the unique distinction of being the only one in the United States, every patron of which has volun¬ tarily tested his herd. If bovine tuberculosis is ever to be eradicated in this coun¬ try it will be through the cordial cooperation of the farmer with the state authorities who will teach him the value of the tuberculin test and its accuracy by such demonstrations as described by Dr.