64 
The Bulletin 
Summary of Lesions 
The following is a tabulation of the lesions of sheep and lambs dead 
of trembles and milksickness, from a total of 16 cases: 
Gross No. Per cent 
Petechia, epicardium . 13 81 
Pale heart muscle . 3 18 
Muco-enteritis, small intestine . 12 75 
Active and passive congestion, kidneys. 15 93 
Cloudy swelling, kidneys . 15 93 
Congestion of brain and meninges. 6 37 
Lungs do not collapse, slight edema. 5 31 
Congestion, liver . 12 75 
Cloudy swelling, liver . 12 75 
Hydropericardium* . 4 25 
The following is a tabulation of the microscopic study of the organs 
of 16 sheep and lambs dead of trembles: 
Microscopic 
Liver: No. Per cent 
Active congestion . 9 56 
Passive congestion . 8 50 
Cloudy swelling . 13 81 
Fatty degeneration .. 14 87 
Kidneys: 
Active congestion . 8 50 
Passive congestion . 7 43 
Cloudy swelling . 16 100 
Glomerulitis . 9 56 
Fatty degeneration . 5 31 
Brain: 
Congestion! . 8 50 
Heart: 
Fatty degeneration . 5 31 
Congestion . 4 25 
Lungs: 
Hyperemia . 5 31 
Edema . 4 25 
Duodenum: 
Muco-enteritis . 12 75 
The most striking pathological features in trembles or milksickness 
are therefore the albuminoid and fatty metamorphoses of the parenchy¬ 
matous organs. 
*These sheep were infested with Hemonchus contortus, which may account for any hydro¬ 
pericardium present. 
tOnly twelve cases were studied microscopically. 
