Contagious Foot-rot in Sheep. 
287 
time at Denham, where an outbreak of foot-rot in the flock 
afforded a most convenient opportunity for an investigation. 
July 23. — Five Cotswold tegs and five half-bred lambs were 
obtained from a hill farm at Cirencester (where, during the last 
seventeen years, there had never been a case of foot-rot, and prior 
to that, so far as could be ascertained, foot-rot had never been 
known on the farm). These sheep wei*e arranged as follows : — 
Pen A, in a barn on concrete floor, — One sound teg with 
one Southdown ewe with foot-rot. 
Pen B, same as ahovQ. — One sound lamb with one diseased 
lamb (foot-rot). These concrete floors were swept out clean 
every morning during the experiment. The pens were eight 
feet by seven feet six inches. 
In orchard, running loose. (The orchard is a dry and well- 
drained meadow.) — One sound teg and one sound lamb with one 
diseased ewe and one diseased lamb. 
On grazing meadoiv. — At first penned by side of stream, 
and afterwards with range of whole meadow. (This is a very 
damp low-lying meadow almost surrounded by water, where 
sheep are never kept.) Three sound tegs and three sound lambs 
were placed to be left for a considerable time to test the actioti 
of damp soil and long coarse grass on the feet. 
August 3, 1891. — All the above were examined. The 
sound sheep remained sound, and the diseased sheep were still 
diseased, although a little better. 
September 12. — Second examination, with result as fol- 
lows : — 
Pen A, in barn. — Sound teg still sound; diseased ewe very 
bad in all four feet. 
Pen B, in ditto. — Sound lamb still sound ; diseased lamb 
nearly well. 
Orchard. — Sound sheep and lamb still sound ; diseased ditto 
much better. 
Note. — On September 17 one teg and one lamb, both quite 
sound, from grazing meadow, were sent to Harrow and put on 
the pasture with diseased sheep, and both of them became 
affected ; on October 9 the lamb, and on October 10 the teg, the 
lamb in the off hind foot, the teg in the off fore foot. 
October 6. — Third examination : — 
Pen A. — The sound teg had developed the disease in all 
four feet, as the result of being in contact with the Southdown 
ewe with foot-rot since June 25 on a hard floor which was kept 
as clean as possible. 
A similar result occurred in fl*en B, in which the sound 
