DISEASES OP THE BLOOD. 95 



ttis a necessity, they should receive a fair allowance of 

 salt. The parasite which produces this disorder is that 

 which causes '^ rot '^ in sheep. 



Science tells us that more careful destruction of faeces 

 containing myriads of ova of this parasite, whether of cattle 

 or sheep affected, would be beneficial. A more widely 

 diffused knowledge of the relations of diseases as they occur 

 among his live stock is essential for the agriculturist. 



Post-mortem Examination of a case of anaemia, while 

 often disclosing the special cause, invariably shows a 

 bloodless condition of the tissues, absence of fat, which is 

 replaced by gelatinous areolar tissue, muscles small and 

 very pale, blood forms a white clot, often before removal 

 from the larger blood-vessels, frequently ante-mortem 

 clots, which have complicated the case during life, may be 

 observed in the heart; they are supposed to result from 

 the uneven internal surface of the heart, whipping up the 

 abnormally fluid blood. Is the flesh fit for human food ? 

 In a case of extreme anaemia, such as has resulted in 

 death, we cannot hesitate to reject it. It probably has 

 distributed through it deleterious matter accumulated 

 from defective excretion; these have not been proved 

 injurious to man but certainly are not beneficial, and the 

 flesh is devoid of nutritive matter, so cannot prove a 

 loss of valuable food material. 



c. Nutrition Perverted. — Pyeexia, Fevee, inflammation 

 of the blood. We have adopted this pathology of 

 fever after due consideration, for it seems to us that 

 all the phenomena of fever may be traced to perverted 

 nutritive conditions of the blood. This state may 

 originate in itself as simple fever , or by extension of inflam- 

 tion from some of the tissues through which the blood cir- 

 culates, constituting sympathetic or symptomatic fever. It 

 has been debated whether simple fever occurs in the lower 

 animals, but we cannot doubt that it does, and under this 

 heading maybe classified those cases which exhibit an in- 

 definiteness of symptoms, an absence of diagnostic signs. 



Symptoms, — The attack commences with a shivering 

 fit and general signs of disorder. Pulse quick, rather 



