26 ORNAMENTAL WATERFOWL. 
tricolor, a small hairy parasite, is found entangled among the 
follicles and glands of the crop. In cases where these are 
present in large numbers the juices necessary for digestion are 
not secreted, the food remains unchanged in the crop, pro- 
ducing a condition of mal-nutrition necessarily resulting in the 
death of the bird. Whenever intestinal or other worms are 
suspected it is prudent to give leeks, onions, chives, or garlic, 
chopped up, which, as a rule, are eaten with avidity. Small 
doses of calomel or castor oil may be administered after this 
treatment. 
Disease of the Liver is often recognisable by the duck 
falling lame, and where this malady is generated by over-feeding 
the abdomen nearly touches the ground; the state of the 
digestion can also be ascertained by observation. 
Liver disease, when much advanced, is practically in- 
curable, developing, as it does, a degeneration of that organ 
which will, upon examination, be found covered with tubercles. 
Dandelion leaves are a preventative, to a certain extent, of the 
development of this malady. 
Atrophy or Consumption manifests itself by loss of weight 
and moping, with paleness of beak and feet, and should be 
treated with warmth, stimulating food, and doses of cod liver 
oil; but where this complaint is not traceable to recent 
arrival or a difficult moult, it is almost hopeless in its character. 
Ducks will sometimes eat bread soaked in cod-liver oil and 
warm milk, when the forcible administration of the oil alone 
would be a matter of great difficulty. I have found Scott’s 
Emulsion of Cod Liver Oil very useful in cases of wasting 
amongst fowls, and have no doubt it would be equally 
applicable to ducks. 
Dysentery, This complaint, even in its earlier stages, 
is generally very amenable to Battley’s Sedative, which, being 
