INDEX

FOOTNOTES

[1]

The term salts includes, as will be explained later, a large number of substances, like ordinary table salt, baking soda, and the laxative salts.

[2]

There are three pairs of these: one just below the ears and behind the angles of the jaw, known as the parotid; one under the middle of the lower jaw known as the submaxillary; and a small pair just under the tip of the tongue, called the sublingual. These glands have grown up from the very simplest of beginnings. At first there was just a little pocketing or pouching down of the mucous lining, like the finger of a glove; then a couple of smaller hollow fingers budded off from the bottom of the first finger; then four smaller fingers from the bottom of these; and so on, until a regular little hollow tree or shrub of these tiny tubes was built up, all discharging through the original hollow stem, which has now become what we call the duct of the gland. Every secreting gland in the body—the stomach (or peptic) glands, the salivary glands, the liver, the pancreas—is built up upon this simple plan. The saliva and the juice of the pancreas and that of the liver (bile) are alkaline, as are also the blood and most juices of the body. The stomach juice is acid, as also are the urine and the perspiration.

[3]