Show m As por for sever years I 1 have been almost daily experiments upon the I 1 internal organs of dead animals in order ord to increase ray knowledge of comp comparative pathology the postmortem examinations ami nations were made for the most part at the lamparter glue works in the suburbs of lancaster pa here of course coarse were the bodies of large numbers of animals which afforded me an abundant supply of subjects for examination es the vicinity of the tha works swarmed alarmed with frith rats many of those the workmen told me sickened and died from time to time and I 1 became curious carious to know something about the disease di seasel that carried so many of the mcdents de ts off I 1 could find next to nothing about the rat in books so eo the thought growing upon me that the disease so fatal to the rat might be made dangerous to tha the rats nearest neighbor man himself D I 1 undertook a series of experiments M my y first rat subject was a sick one which I 1 captured in the yard of the glue works without any exertion the tha animal crawled about labonty made no effort to escape epe from me and when picked up offered no resistance its appearance indicated that it was dying of general debility it its body was greatly emaciated its back was arched wd aid its face bore an expression of distress it refused food was racked with a constant cough and in a few hours houra after being captured wp was found dead in the comfortable prison in in which I 1 had placed it il my next subject was a healthier and more active rat I 1 caught him only to mark him and then gave him his freedom lie ile came into the yard regularly for his rations of flesh from various animals but gradually showed the same symptoms that marked the condition of my first subject and in fourteen days after capture he too waa dead the postmortem examination of these two cues cases developed the fact that the lungs were badly diseased tuberculosis had aes destroyed troyed the right lung of each and only a part of the left remained dr S E weber s lecture |