Care and Management of Swine 299 
Good results are reported from the use of a self-dipping device. 
This device consists of a shallow vat about ten inches deep and 
eight to ten feet square. It is built of two-inch plank and placed 
near by or convenient to the well or large water-tank. The vat 
is filled about three-fourths full of water and one quart of dip 
added. The dip-is renewed about once in two weeks and the 
water supplied: as needed. During the muddy season, the tank 
should be cleaned and a fresh start made. The liquid may be 
removed in a few minutes with a scoop shovel. The hogs wallow 
in this at will, and they do not seem to mind the dip; when the 
water is fresh they often drink small quantities of the liquid. 
This keeps the hogs free from lice and skin diseases and helps to 
keep down worms, cholera, and other swine plagues. 
SHELTER FOR SWINE 
Some one has fittingly said, ‘‘ The hog does not need a palace 
or an upholstered cage, nor does he prosper in a dungeon.” Oc- 
casionally much money is uselessly expended in the construction 
of a large and expensive building which is in use only a part of the 
year; more often, however, swine are housed in a hole in the 
straw stack or in a shed constructed from fence rails or poles and 
covered with straw or fodder. Such places are dungeons. There 
is no ventilation, they are dark and damp in wet weather, and soon 
become filthy dens of infection. 
As with the barn for other farm animals, the hog barn should 
be well ventilated, well lighted, well drained, and dry, serviceable, 
and sanitary. Any structure that answers these conditions will 
prove fairly satisfactory. Convenience and adaptability should 
be considered in constructing the hog-house. In general, hog- 
houses are of two types: large houses, or those accommodating a 
considerable number of hogs; and small individual houses or cots. 
484. The large hog-house. — There are almost as many types 
of large hog-houses as there are swine breeders or feeders who 
