SHEEP ROT. 
551 
sheep managed at different seasons of the year as to feeding, 
grazing over old pastures, or penning on the arable land ? 
3. What is the extent of your holding, the description of 
your land, the amount of pasture and arable, the proportion 
of wet and woodland ? 
4. What class of sheep chiefly suffer? If lambs were 
affected, when did they first become affected ? 
5. Can you explain why some of your flock suffered and 
some escaped ? Can you explain why some flocks have been 
extensively and seriously diseased, while those adjacent were 
unharmed, or nearly so ? 
6. Can you describe the meadows or other lands which 
notoriously produce rot? Are there on them any open ditches, 
stagnant pools, spouts, or boggy places? 
7. Have you observed any particular plants or weeds on 
the lands where rot is contracted ? Is there any greater 
prevalence of the disease where the grass is allowed to get 
rampant, or where it is close grazed ? 
8. Have any cattle or horses in your farm or in your 
neighbourhood been affected with flukes ? Amongst these 
animals has there been any difference in progress or symp¬ 
toms of the disease, as compared with what is observed in 
sheep ? 
9. Have hares, rabbits, or other animals suffered from 
flukes ? 
10. Do you know of any calves or lambs reared on their 
mother’s milk in houses or sheds being affected by flukes ? 
In such cases has no grass or other food been furnished from 
possibly infected land ? 
11. In what months of the year do you consider liver rot 
most likely to be contracted ? 
12. What period elapses between the taking up of the 
embyro of fluke—the cause of the disease—and the mani¬ 
festation of the first symptoms of rot ? 
13. Can you state what snails or molluscs are common on 
the lands liable to rot ? Have they increased of late years ? 
Are the birds which might prey upon them as numerous as 
formerly ? 
14. What proportion of your sheep, having shown symp¬ 
toms of rot, eventually recover? 
15. Have you found dry food, regular supplies of salt 
doses, of iron salts, or other remedies, effectual in preventing, 
checking, or curing liver-rot ? 
Believe me, dear Sir, yours faithfully, 
Finlay Dun. 
