Interim report on veterinary investigations. 349 
being weaned, they have been kept exclusively on per¬ 
manent pasture down to the end of the year? 
17. If affected on permanent pasture has the custom been to 
mow such pasture and feed the after-grass, or to feed 
throughout the summer ? 
18. At what period of the year have the first indications of 
the lambs being unhealthy been observed? 
19. Has the state of the weather influenced the attacks, and, 
if so, in what manner? 
20. Has the disease prevailed more or less every year, or have 
there been years of freedom from it? 
21. If the disease has been on the increase of late years, to 
what cause is it attributed ? 
22. When the lambs have gone apparently healthy from per¬ 
manent pasture to rape, mustard, or other green crop 
of that year's produce, have they suffered from the 
disease ? 
23. On what evidence has reliance been chiefly placed that 
the lambs, which subsequently showed symptoms of 
the disease, were in a perfectly healthy condition 
when removed from permanent pasture to crops not 
previously fed with sheep ? 
24. Supposing layers are fed with sheep and allowed to 
stand over for feeding again in the following year, 
have the lambs pastured thereon been early attacked 
or not ? 
25. Has it been observed that lambs which are grazed during 
the summer on seeds that had not been previously 
stocked with sheep, contract the disease ? 
26. When the lambs are unmistakably diseased, on what 
part of the farm, and on what food in particular, have 
they been afterwards kept ? 
27. What symptoms do you deem to be characteristic of the 
disease ? 
28. How long a time usually elapses between the first indi¬ 
cations of disease and death ? 
29. Does scouring—diarrhoea—exist in all cases before death? 
30. What are the percentages of deaths over recoveries, or 
vice versa ? 
