i8 
SHEEP SCAB. 
The sheep was examined the next day and many times 
thereafter, but no live scab appeared again and no living mites 
have since been found. The scab healed quickly and the sheep 
has done well ever since. 
On the same date another sheep with heavy live scab was 
dipped in Zenoleum diluted 200 times. Twenty-four hours after 
dipping, wool was pulled showing many dead mites but no 
living ones. The sheep has been frequently examined since, but 
no live scab has appeared during the six months. 
On December 12, one sheep not cured by previous dipping 
with potassium sulphide, was dipped in Zenoleum diluted 200 
times, and has shown no live scab since. 
On the same date, two sheep, one with a small patch of 
light scab, and one with a small patch of rather heavy scab, 
were dipped in Zenoleum diluted 600 times. In both cases the 
scab seems to have been completely cured, no signs of live scab 
appearing since. 
A Bunch of Sheep Dipped Once — On November 18 a bunch 
of forty sheep, man^^ of them with heavy live scab, was dipped 
in Zenoleum diluted 200 times. No scab was afterwards found 
in this bunch until February 9, at which time six cases of 
live scab were found, all but one very light. It was found 
that the one sheep with heavy scab was put in the bunch on 
December 13 in order to make this bunch of sheep compare in 
numbers with other bunches that were to be used in a feed- 
ing experiment. The scab had gone unnoticed, as it had de- 
veloped in a large patch of short wool that could not be pulled 
by the sheep. It seems to me that the presence of this one 
sheep would readily account for the five incipient cases. How- 
ever this may be, there were several bad cases that never showed 
any scab after the dipping. 
A Bunch of Sheep Dipped Tioice in Zenoleum, Diluted 200 
Times — Another bunch of forty sheep that was dipped in Zeno- 
leum, one to 200, on November 18, was dipped again on December 
1. This bunch, like the preceding, had a good number of cases 
of heavy scab. 
No live scab was found in this pen until February 9, when 
the sheep were all examined and one was found with a small 
patch of fresh scab about one inch in diameter. On December 
13, three sheep were put in this pen also, preparatory to a feed- 
ing experiment, and on the date that the scabby sheep above 
mentioned was found, these three sheep were also found to 
have some scab; one of them had a bad patch on its tail, which 
it was seen rubbing on a feeding trough. The three sheep were 
