The Bacillus tuberculosis, 



and 



some anatomical points which suggest the refutation of its 

 etiological relation with tuberculosis *) 

 by 



H. F. Formad, B.M., M.D. 



I intend to demonstrate Koch's Bacillus tuberculosis, and, at the 

 same time, will bring forward some points from researches of my own, 

 which will check the acceptance of the doctrine of the parasitic origin 

 of tuberculosis. 



Only recently the low organism which is alleged to be the cause 

 of general tuberculosis and phthisis was exhibited in this room by 

 Prof. Whittaker, of Cleveland, Ohio, by invitation of the College of 

 Physicians. It is through his kind instruction that we have been 

 enabled to make similar beautiful preparations of the Bacillus tuber- 

 culosis, following strictly the method of staining in its recent impro- 

 vements as described by Koch, in Berlin. 



Dr. Koch's methods of preparation have been so graphically de- 

 scribed and demonstrated by Dr. Whittaker, and have been so widely 

 quoted in the various medical journals, that it is unnecessary for me 

 to repeat them. 



The bacilli now under the microscope were preparated from the 

 sputa of a phthisical patient in the Philadelphia Hospital, and they 

 correspond in every respect to those of Dr. Whittaker's preparations. 

 Moreover, the patient has died since the sputa have been taken, and 

 the autopsy revealed true tubercular disease. There is, consequently, 



») Philad. Medical Times, Novbr. 18. 1882. 



