Septic tanks are usually built of solid concrete, concrete blocks or brick, waterproofed on the inside to prevent escape of the contents except through the outlets described. These outlets should be 100 to 150 feet away from any source of water supply to prevent contamination of potable water.

Leading from the outlet of the second chamber, several lines of tile 10 to 14 inches in depth should be laid at a gentle slope away from the tank, permitting escape of the effluent at each joint. For a family of six persons a total length of 150 feet of tile pipe will be sufficient in most types of soil.

Food Storage.—Every country home should have a basement in which a room can be set apart for cold storage. Such a place is suitable for keeping supplies of potatoes and other root crops, as well as commodities that deteriorate under conditions of warmth. Surplus supplies of food from the garden can be placed in such storages and be readily available for use during the winter. With the surplus of perishable food products in cans and with a good supply of non-perishable products in such a type of storage room, economies in food purchase can be effected and the healthfulness of the family maintained through their use when fresh products are difficult to secure or are unseasonable and expensive.

If a basement is not available for food storage, root crops can be stored outside the house and kept during the winter. These products should be piled in a heap, covered with straw or other clean, loose material and the mound then covered with earth. In this manner, potatoes and similar crops can be kept throughout the winter and until late in the spring without serious deterioration. It is important to select a site for such outdoor storage that is well drained so that water will not collect and freeze in the storage area.

Services Available to the Country Resident.—Public agencies are available for help in solving the problems of country residents, varying from agricultural and horticultural practices to building construction, water supply and sewage disposal. As a rule, these services are of advice and suggestion, are free of cost and may be utilized freely by those living in the country.

Most of the counties in the United States have a county agricultural agent, who is located at the county seat and whose territory covers only the county in which he resides. The costs of such service are paid by federal and state appropriations, frequently supplemented by county appropriations, and also frequently through annual individual subscriptions. The county agricultural agent is really a field representative of the United States Department of Agriculture and of the state agricultural college in the state where he works. There is hardly a problem of the country resident for which he cannot obtain aid from the county agricultural agent. In many of the more thickly populated areas the problems of the family getting a location on the land for a home are already well known to the agricultural agent and he is therefore in a position to guide the newcomer and help him to prevent mistakes.

In many counties there is also a home economics service connected with the office of the county agricultural agent and supported in the same general manner. This service, along the lines which the name implies, is available to the country home maker. Groups of women are organized and meet at intervals for discussions on food preparation, canning and storage and the making of clothing for the family.

In nearly every state there is a state department of agriculture with regulatory and promotional activities and dealing especially with law enforcement provisions passed by the respective legislatures. These agencies are also concerned with development of marketing facilities in many states. They are supported by state and federal funds and carry on such projects as the testing of cattle for tuberculosis, treatment in prevention of communicable animal diseases and the control of insect and fungous pests through quarantine and inspection activities. These departments are located at the state capitols and information on the services available can be secured by addressing the department in the state where one resides.

Because there is a lack of understanding among newcomers to the country of the services that are available through these agencies without cost, this particular mention of them is made. It is recommended that each family get in touch with the county agricultural agent, the college of agriculture and the department of agriculture and learn definitely of the help that can be secured without cost in meeting the problems of country life.

Electric Wiring Principles.—Public utilities are organized to furnish electric service and it will be found that they are ready to assist customers in securing the most satisfactory use of electricity. Such knowledge, based on experience, will be valuable in helping owners to avoid costly mistakes and to provide for a wiring system that will be economical and yet complete. When the plans and specifications of the wiring system have been worked out, it is important to secure bids from reliable contractors. Only those contractors who can do the work in a capable manner should be employed and it should be determined in advance that the installation will be in strict compliance with the National Electrical Code. For wiring work it is necessary to know the number of amperes the wire is to carry. This may be determined by dividing the load in watts by the voltage which is to be used.