Let not the reader who tries laryngoscopic investigations be discouraged if, at first, violent retching is the result. It does not so much arise from sensitiveness of the parts touched, as from awkwardness in introducing the mirror. If he perseveres he will soon be rewarded by a view of the pearly white vocal ligaments, and a little repeated practice upon himself will enable him also to operate upon others without causing them discomfort. I close this chapter by again reminding amateur laryngoscopists that in the vast majority of cases where the touch of the mirror causes retching and gagging, it is due less to the sensitiveness of the person operated upon than to the want of skill on the part of the operator. He should in that case renew his experiments upon himself, and continue them until he has fully mastered the use of the instrument, as it is not fair to make others suffer for his own clumsiness. THE TEACHINGS OF THE LARYNGOSCOPE. On introducing the mirror into the throat we first see the back part of the tongue, which has a very uneven surface, and which is, as a rule, covered with greyish phlegm. We next notice a hollow space between the tongue and the lid, which is divided by an elastic band forming a little bridge between the two. Next comes the upper free part of the lid, the shape of which greatly varies in different individuals. It hangs over the voicebox, which it almost completely hides from view; but during the production of a high tone on the vowel A, as in "sad," it takes an almost perpendicular position. When the lid is so raised (pl. XIV, L) we can see right down to the bottom of it, where we observe that it bulges out a little. Extending from either side of the lid to the pyramids are two folds of mucous membrane, in the hinder part of either of which are to be observed two little elevations representing the cartilages of Santorini (pl. XIV, S S), and the upper points of the wedges, called the cartilages of Wrisberg (pl. XIV, W W). Looking down the kind of tube which is formed by the parts just enumerated, we next notice two horizontal projections running from front to back, which are the pocket ligaments (pl. XIV, P P). Everything we have seen so far is of a pinkish colour. Below the pocket ligaments, right at the bottom of the tube described above, we see the main object of our investigation, namely, the vocal ligaments (pl. XIV, V V). These, being almost of a pearly white, form a strong contrast to all their surroundings, and it is quite impossible to mistake them. * * * * *