6. The pulse may be rapid, but is usually regular.

7. The mouth may be flecked with foam.

8. The pupils of the eye may be contracted or equally dilated.

Treatment—Convulsions come from various causes, and are always serious, therefore send for the doctor at once.

1. Put a wedge of some kind between the teeth if possible, the handle of a spoon protected by a cloth cover, or a rolled napkin does well. This is to prevent biting the tongue, which the patient is apt to do in unconsciousness with convulsive movements.

2. Lay the patient flat on his back, and prevent him from hurting himself in his twisting, but do not try to stop convulsive movement. It will do no good.

3. No stimulant is needed.

(a) SUNSTROKE; (b) FREEZING

(a) Sunstroke—Sunstroke is caused by too long exposure to excessive heat, or to the direct rays of the sun, and is much more serious than heat exhaustion, which you have already studied.

Prevention—Do not stay out in the direct sunlight too long on a hot summer day. Wear a large hat which shades the head and face well, if obliged to be in the hot sun for any length of time. Do not wear too heavy clothing in the hot weather. Leaves or a wet sponge in the top of the hat will help to prevent sunstroke. Drink plenty of cool water between meals.