The single method should be used where cholera has already broken out in a herd, to protect the animals which have not yet acquired the disease; in all other cases the double method should be used. A farmer should not attempt to give the serum unless he has had considerable experience with it and seen competent people properly administer it; otherwise call in a Veterinarian, his charges will be less than the value of the hogs that would otherwise be lost. PART VI. Diseases of Poultry CHAPTER I. Doses and Methods of Preparing the Remedies for Use. ONE DROP or PART of a DROP is quite sufficient as a dose for an ordinary fowl. One drop of any remedy put into a teaspoonful of water or milk, and this put into a teacup so as to _be thoroughly mixed_, is a sufficient dose for FIVE FOWLS of full size, or ten chickens. WHERE A FLOCK or several fowls are to be treated, drop ten drops of the proper remedy into a cup, to which add ten teaspoonfuls of water, milk or curdled milk, and after _stirring it thoroughly_ with a perfectly clean spoon, mix this with the meal, grain or bread, or whatever food is given them. If the quantity of fluid should not be sufficient to properly moisten the food, more can be added without detriment, provided the mass be _thoroughly stirred and mixed_ before wetting the food. This would be enough for fifty fowls. Some will get more and some less, of course; but each will probably get enough to answer a curative purpose, and none will get so much as to be injurious. If a bird is so ill as not to eat or drink, and the Remedy must be given by hand, the mouth may be gently opened and two or three drops of the mixture, made in the proportion of one drop of the Remedy to a _teaspoonful_ of water, may be turned down, or the fluid may be turned on soft food and thus given, at the intervals mentioned under each separate disease. _Bread soaked in milk or water_, cooked cracked wheat or curdled milk is, in general, the best food for sick or ailing fowls. Aspergillosis—Brooder Pneumonia This disease affects both the adult birds and the young chickens often causing serious loss among the latter. The disease is caused by a fungus or mold which grows on straw, grain, etc., and is either inhaled in breathing or swallowed by the chicken; it sticks to the air passages and grows there as it did on the straw or grain, in small, yellow patches. SYMPTOMS.—In the adult fowl, the first symptoms are apt to pass unnoticed, these are loss of appetite and increased thirst, then the fowl loses weight; the breathing becomes labored and is accompanied by a rattle in the throat from the mucus which collects. This keeps on getting worse until the bird dies.