issg.] Etiological Classijication of Diseases. 969 
that the " typhoid " was over, only to come the succeeding 
morning to find the temperature again elevated, the face cyanotic, 
and the patient breathing rapidly and with difficulty. Surely the 
diagnosis was correct the previous day, and the prognosis justi- 
fied ? What then has happened ? 
1st. Stagnation pneumonia. 
2d. Friedlander's bacillus or Frankel's pneumococcus, or some 
other micro-organism, has been caught in the bronchial tubes, as 
suggested, and the unfortunate patient is again the object of 
bacterial attack. 
As said so many times, the real pathogenic question is, Are the 
organisms (or germs) at the bottom of this deuteropathic compli- 
plication simply invasive in character, or hasasecondary^nfection 
taken place ? It is of the utmost prognostic importance that in- 
vestigators truly inform practitioners which of these two is most 
likely to be the case. 
Though not a a clinician, it would seem as if more attention 
ought to be given to the movements of the limbs by attendants, 
or massage treatment in such cases by physicians. Of the value 
of forced movement in an exactly similar case in Swine-Plague, 
I can speak most emphatically. It will save an otherwise fatal 
cases, and not only one case, but will lessen the percentage of mor- 
tality in a herd. I have proved this by actual experimentation in 
two different bunches of hogs inoculated at the same time with 
the same dose of virus. The ones forced to move several times 
a day, and as actively as they could, with a whip, all lived. The 
others, kept closely confined all the time from the day they were 
inoculated, all died. 
It has been said that the larger number of these deuteropathic 
pulmonary lesions of micro-organismal origin will be found to be 
simply invasive, and due to mechanical irritation. In Swine- 
Tlague, I know of three distinct micro-organisms which thus 
cause an invasive broncho-pheumonia, only one of which has any 
experimental virulence in small animals, and neither of them in 
swine, on subcutaneous inoculation. In the " Corn-Stalk Disease 
of Cattle," an unquestionable intestinal infection, several varieties 
have been found which caused broncho-pneumonia, and, so far as 
