16 
REPORTS OF CASES. 
tion lie not only will louk fur the common symptom, pain, but 
also amongst the symptoms themselves collectively, for the pecu¬ 
liar and differential characters they may offer. These are far, it 
is true, from being constant and uniform. On the contrary, they 
are essentially variable, and they most commonly present them¬ 
selves under some special morbid conditions whose recognition is 
sufficient to determine their true pathognomic character. The 
diagnosis being thus established, the clinician can readily reach 
the true conclusion as to the therapeutic method indicated. 
Without such a diagnosis the clinician is obliged to treat the 
pain as the only symptom. This may enable him to give relief, 
and perhaps to cure, but it is essentially an empirical mode; in 
resorting^ to it one acts blindly and without discernment. We 
may occasionally, in this way, assist nature ; or, on the other 
hand, we may interfere with it in its efforts to recovery. 
Most of the authors who have written on this subject have 
attempted to make a classification. We shall follow their exam¬ 
ple in dividing colics into seven groups, each of which will repre¬ 
sent a certain number of affections : 
The first six groups belong to colic proper of the gastrointes¬ 
tinal canal. The seventh comprises the colics resulting from dis¬ 
eases of other than abdominal viscera. These may be resulting 
from simple alegia, acute and chronic lesions, calculi, ruptures, 
etc., and are the false colics of Zundel. The pains following 
pleurisy may also be placed with this group. 
\To be continued .] 
REPORTS OF CASES, 
CROUP—CYNANCHE TRACHEALIS. 
By J. J. Vanderee, V.S. 
I do not remember of reading anything on the above as re¬ 
ported cases happening in this country, so I will, with your con¬ 
sent, report three cases coining under my observation and treat¬ 
ment. 
December 3, 1884, I was called to the residence of Mr. Sam- 
