In order to be in good health it is necessary to breath through the nose, and to do this there must be nothing in the nose or upper part of the pharynx to interfere with the free circulation of the air through these cavities. The cavities of the nose may be partly closed by polpi (tumors) on the upper and middle turbinate bone, a spur on the (septum) partition, deviation of the partition or enlarged turbinate bones, or adenoids in the upper part of the pharynx. These troubles almost close up the nose sometimes and the person is compelled to breathe through his mouth. He not only looks foolish, talks thick, but is laying up for himself future trouble. By correcting the trouble in the nose and removing the adenoids in the upper part of the pharynx the patient can breathe through the nasal passages. If you take a tube you can pass it straight back through the lower channel (meatus) into the pharynx. It will touch the upper back wall of the pharynx. If the tube has a downward bend you can see it behind the soft palate and by attaching a string to that end you can draw it back out through the nostrils. In that way we plug the posterior openings (nares). The upper part of the pharynx reaches higher up behind than a line drawn horizontally above the tip of the nose to the pharynx. It reaches forward above the soft palate on its front surface. Its front surface is almost directly on a vertical line with tonsil, above the soft palate. On its upper part and on the side near the nose cavity is the opening of the eustachian tube. The name naso-pharynx means the junction of the nose and pharynx. Sometimes the upper posterior wall of the pharynx, called the vault of the pharynx, especially the part behind each eustachian tube, is filled almost full with adenoids. These are overgrowths or thickenings of the glandular tissue in the upper posterior wall of the pharynx (vault of the pharynx). ADENOIDS. (Pharyngeal Tonsil, Lursehkas Tonsil, Adenoid Vegetation, Post- nasal Growth.)--Adenoids are overgrowths or thickenings of the glandular tissue in the vault (top) of the pharynx. They are on the upper posterior wall of the pharynx, often filling the whole space, especially the part behind the ear-tube--eustachian tube. They are a soft pliable mass, well supplied with blood vessels, especially in children. Some are firmer and these are the kind seen in adults. The color varies from pale pink to dark red. The structure is similar to enlarged tonsils. [RESPIRATORY DISEASES 9] [Illustration: Adenoids]