, : 
404 REPORT OF THE COMMISSIONER OF AGRICULTURE. 
EXPERIMENT No. 20. ; 
Experiment undertaken as a test of the propagation of the disease-poison through the air. 
October 5.—A pig was placed in a pen between two infected ones, and separated from 
each only by an impervious double wall of matched boards, with building-paper be- 
tween. The only means of communication was through the open air by means of 
ventilators at the front and back of each pen, and the openings of which in adjacent 
pens were less than a foot apart. On the ninth, tenth, and eleventh days the pig had 
an elevated temperature and was lame in the right shoulder, the illness being evi- 
dently rheumatic. , 
On October 29th, the twenty-fourth day, the temperature rose 2° and remained at 104° 
F. and upward for six days (till November 3rd). It then showed a daily diminution, 
and by November 8th, having attained the natural standard, the pig was destroyed. 
Experiments on sheep, rabbit, and dog. Inoculation with fresh virulent pig’s blood, containing 
moving bacteria. 
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ral £2 | 8S] 82) 
Subject. SS | 2 te eee = Remarks. 
= == | | an a5 
He ao ee er | 
A Zils Rabie Le) 
- | 
Merino wether. ...-.-........ Dec. 14 | Dec. 135 | | eee 
Adult female rabbit.-......-. Dec. 14 | Dee. 15 | fleece } : 
Newfoundland puppy, seven | Dec. 14 | Dee. 15 | 1] 1 | Temperature rose 2.25°, bat was nor- 
weeks old. | | mal on the second day 
Female pig, twelve weeks old.| Dec. 14 |.......--- Bese bees | Purged actively for three days. When 
| | inoculated the pig was in advanced 
| | non-febrile stage of the fever, and 
| | | the temperature did not rise above 
| | | the normal. 
{ 
Inoculation with fresh virulent blood in which no moving bacteria had been observed. 
| ae | 
on 
Aa 
Subject. os Remarks. 
oe 
= 
= 
Merino wether. ......-......- Nov. 21 Beoumae and rise of temperature 1° on fourth and sixth days 
only. 
Om eset ooo soas cme es Dec. 7} No ep precimule effect. 
Adult female rabbit.......... Nov. 21 0. 
Dec. 7 Temperature rose 1° on the first day only. 
