The Proper Temperature of Rooms.~--It is also very unwise for a person to keep the rooms in which he lives too warm, and to stay too much in-doors, as it makes him very liable to take cold when he goes out-of-doors.

One who is out of doors in all kinds of weather seldom takes cold.
~9.

Care of the Hair and the Nails.~--The scalp should be kept clean by thorough and frequent washing and daily brushing.

Hair oils are seldom needed.

If the skin of the head is kept in a healthy condition, the hair requires no oil.
~10.~ The habit of biting and picking the fingernails is a very unpleasant one, and keeps the nails in a broken and unhealthy condition.
The nails should be carefully trimmed with a sharp knife or a pair of scissors.
~11.