362 
FOURTH INTERNATIONAL VETERINARY CONGRESS. 
principle that pleuro-pneumonia propagated only by contagion.” 
Mr. Fleming called upon the Congress to pronounce upon the 
question of the spontaneity of the disease. He, like many 
others, considered contagion as the sole cause of the affection. 
Mr. Locusteaano, basing his views upon the fact that conta¬ 
gious pleuro-pneumonia does not exist in Roumania, said that for 
this reason he was a disbeliever in the spontaneous development 
of the disease. 
The meeting adjourned at 12:30, and was again called to 
order at 2 p. m. 
Mr. Lindgvist, who first had the floor, stated that in Sweden, 
Norway and Finland, the disease made its appearance after the 
importation of foreign cattle; he considered pleuro-pneumonia 
as an affection purely contagious. 
Mr. Yisenr said that contagious pleuro-pneumonia is a disease 
of the connective tissue ; that it may arise spontaneously in given 
conditions of regime and hygiene; most commonly, however, 
developing itself by contagion. It may appear with the lesions 
of pleurisy only, especially in young animals. In these, inocula¬ 
tion sometimes communicates.pleurisy. Under his observations 
the lesions vary with the mode of feeding. 
The President inquired whether any members were united in 
calling for the termination of the discussion upon the first part 
of the question. 
Mr. Berdez asked that the Congress should pronounce upon 
the question of the spontaneity or non-spontaneity of the disease. 
He remarked that the facts observed in Switzerland show that 
pleuro-pneumonia does not arise spontaneously. The manner of 
its introduction has always been known, and contagion has been 
found to be the cause of its appearance in every case. He pro¬ 
posed the following resolution: 
“ The Congress declares that at present there exists no direct 
or positive proof of the spontaneous development of pleuro¬ 
pneumonia, and considers that the application of sanitary measures 
agaiust it should be based on the fact that it propagates itself 
only by contagion.” 
Mr. Cope greatly regretted that any person should continue to 
