364 
FOURTH INTERNATIONAL VETERINARY CONGRESS. 
and Leblanc proposed the following : “ This Congress declares that 
there exists no positive evidence authorizing a denial of the 
theory of the direct development of contagious pleuro-pneumonia, 
but that, on the contrary, considerations of fact and science com¬ 
pel us to consider this development as possible, though rare* 
The Congress also believes that from the point of view of sani' 
tary police, it is proper to consider it as being transmitted only 
by contagion.” 
Mr. Degive accepted this proposition. 
Mr. Yiseur proposed the following : “This Congress admits all 
necessary reservations as to the casuality of pleuro pneumonia; 
but it recognizes the facts of contagion, and is of opinion that it is 
the indication of sound expediency in matters of sanitary police* 
always and everywhere to adapt its action to the hypothesis of 
the exclusive contagiousness of the disease.” 
Dr. Virtz leaving the chair to Mr. Bouley, proposed the follow¬ 
ing: “ That from the anatomical point of view, at least relating 
to veterinary police, all lobar, and at the same time interlobular 
pneumonia, ought to be considered as epizootic contagious pleuro¬ 
pneumonia. On the strength of various objections, he ap¬ 
pended to his amendment the words: “ Whose development does 
not depend on local traumatic causes.” This amendment was 
adopted as the first resolution. The second paragraph, after dis¬ 
cussion by Messrs. Tisserand, Bouley, Degive and Wehenkel, was 
accepted, with the addition of the word “contagious” before 
“ pleuro-pneumonia*” After several remarks from Messrs. Wirtz, 
Degive, Wehenkel, Lydtin, Roll, Cagny, Aerts, Fisher, Louistiano, 
Butz and Muller, the following was added to Section 3 : 
“ (a) The following shall be considered as suspected of epizootic 
contagious pleuro-pneumonia: all animals, which, in an infected 
centre, shall present either a state of reactive fever or symptoms 
of disease of the chest.” 
“ ( b) As suspected of contamination, all animals in an infected 
centre or which have been there within three months; or that 
may have been exposed to contamination in any other way.” 
Mr. Quivogne proposed the following: “ An isolated case of 
contagious pleuro-pneumonia does not preclude the existence of 
the contagious affection.” 
