6 BULLETIN 646, tJ. S. DEPARTMENT OF AGRICULTURE. 
lesson n. 
TOPIC: HOUSES. 
Time. — Early fall. 
Lesson ouiline. — Location: A well-drained site should be selected 
and, if possible, should have sufficient elevation to give the hogs a 
climb in reaching it. If practicable the house should occupy the 
south side of a hill. 
Principles of construction: Four important things should be 
observed in hog-house construction: namely, light, ventilation, 
warmth, and cleanliness. Light is provided by placing the house 
along a north and south line and by putting in suitable doors and 
Fig. 3. — Large or community house. 
windows. Doors, windows, and roof ventilation furnish a proper 
interchange of air. Hogs need good ventilation as well as people. 
A well-constructed house with good floor and bedding provides 
sufficient warmth. 
Let it be remembered that the hog has little natural protection 
from cold; hence the necessity for comfortable quarters. Cement 
makes a satisfactory floor, but in colder climates must be covered 
with wooden false floors. A good floor makes it much easier to keep 
the house clean. The arrangement of the house should be such that 
the beds and feed floors are well separated. 
Bands of houses: There are two general classes of houses — large 
community or stationary (fig. 3), and small individual or movable 
(fig. 4). The large house has individual pens and is intended for 
