The following notes on poultry houses apply to Iowa and Nebraska, where the winters are severe, and similar climates. Farther south and east the farmer should use the same style of houses as recommended for egg farms. A chicken house just high enough for a man to walk erectly and a floor space of about 3 square feet per hen is advisable. This requires a house 12 by 24 for 100 hens, or 10 by 16 for 50. Lands sloping to south or southeast, and that which dries quickly after a rain, will prove the most suitable for chickens. A gumbo patch should not be selected as a location for poultry. Hogs and hens should not occupy the same quarters, in fact, should be some distance apart, especially if heavy breeds of chickens are kept. Hens should be removed from the garden, but may be near an orchard. Chicken-houses should be separated from tool-houses, stables, and other outbuildings. Grading for chicken-houses is not commonly practiced, but this is the easiest means of preventing dampness in the house and is necessary in heavy soils. The ground-level may be raised with a plow and scraper, or the foundation of the house may be built and filled with dirt. A stone foundation is best, but where stone is expensive may be replaced by cedar, hemlock or Osage orange posts, deeply set in the ground. Small houses can be built on runners as described for colony houses for an egg farm. Floors are commonly constructed of earth, boards or cement. Cement floors are perfectly sanitary and easy to keep clean. The objections to their common use is the first cost of good cement floors. Cheaply constructed floors will not last. Board floors are very common and are preferred by many poultrymen, but if close to the ground they harbor rats, while if open underneath they make the house cold. Covering wet ground by a board floor does not remedy the fault of dampness nearly so effectually as would a similar expenditure spent in raising the floor and surrounding ground by grading. All things considered, the dirt floor is the most suitable. This should be made by filling in above the outside ground-level. The drainage will be facilitated if the first layer of this floor be of cinders, small rocks or other coarse material. Above this layer should be placed a layer of clay, wet and packed hard, so the hens cannot scratch it up, or a different plan may be used and the floor constructed of a sandy or loamy soil of which the top layer can be renewed each year. The walls of a chicken-house must first of all be wind-tight. This may be attained in several ways. Upright boards with cracks battened is the cheapest method. Various kinds of lap-siding give similar results. The single-board wall may be greatly improved by lining with building-paper. This should be put on between the studding and siding. Lath should also be used to prevent the paper bagging out from the wall. The double-board wall is the best where a warm house is desired.