" Wasting;' " Hanger Rot," " Blood Eot," &c. 209 
the requirements of the system and the nutriment supplied. The 
food-supplv mav be in a certain sense abundant, but on exami- 
nation it will ultimately be found inadequately provided with 
materials fitted for the manufacture of healthy blood. In all 
cases of its appearance the disturbed relations or non-fulfilment 
of conditions essential to the maintenance of healthy animal life 
seem to exist in the province of diet. In no instance have I 
encountered anaemia where the diet has been of a mixed cha- 
racter; and in every extensive outbreak the food-material, what- 
ever it was or in whatever quantity allowed, has been character- 
ised by one feature — sameness. While restoration to health in 
those animals in which exhaustion had not proceeded to an ex- 
treme point was invariably attendant on a change of diet, or on 
an addition to the existing one of some other material — this in 
certain cases not apparently greatly excelling the original in 
what are regarded as qualities of nutrition. 
Although probably of less frequent occurrence everywhere 
during the summer, the different seasons of the year do not appear 
to influence its production to an extent at all comparable with 
varieties of soil. This we can with little difficulty understand, 
when we consider that, much as meteorological conditions 
influence the character and healthy development of plants which 
form the food-supply of animals, the geological formation of a 
soil, and its manurial poverty or richness upon which these 
plants so largely depend for their support, must of necessity 
exercise an influence infinitely greater. 
When met with during the summer amongst sheep on pastures, 
it will generally be encountered first on such lands as are of a 
weak, moory character, and which in all probability have been 
lately undergoing considerable alteration from cultivation, and 
under conditions where the animals have been retained upon this 
kind of soil for exceptionally long periods without change ; con- 
ditions which, whenever occurring, are exceedingly liable to pro- 
duce a variety of serious diseases amongst sheep. Second, on 
meadow or old-grass pastures which have been extensively irri- 
gated, or where, owing to an exceptionally moist season, an 
extra crop of rank immature herbage has been the natural 
result. 
By far the most serious manifestations of anaemia in this 
country, however, are to be looked for during the winter and 
spring. First, when sheep are folded and fed exclusively upon 
iturnips grown on weak moory land, particularly if this has 
been lately reclaimed ; secondly, when sheep, being deteriorated 
m health from their summer feeding on rank meadow or other 
grasses, are placed for winter keep on root-crops alone, hay as 
well as corn and cake being withheld ; thirdly, amongst breeding- 
VOL. XXI. — S. 8. P 
