[Illustration: FIG. 43 (Gruenwald). Shows the larynx as it may be seen only by the use of the laryngoscope. The above is an example of the appearance of the vocal bands during a deep inspiration, and in this subject, as in those illustrated by FIGS. 40, 41, the circumstances were so favorable that the observer could see even the trachea, the rings of which are indicated in the picture. The reader will bear in mind that in this and all laryngoscopic pictures, while right remains right, front becomes back, and back front, so that the back of the larynx appears toward the observer--_i.e._, is lowest on the page.] So far as the larynx is concerned the changes are less pronounced, usually, in the girl; nevertheless, the period is one of such change for the female that the greatest care should be exercised at this time, especially in the case of city girls. The body requires all its available resources for the growth and development which is so characteristic of this biological and psychological epoch; hence it may be ruinous for the future of the girl if at this time the same strain is put upon her as on the adult, whether in the direction of study, physical exertion, or social excitement, and of course the voice must suffer with all the rest. The farmer who would attempt to work the colt of a year or two old as he does the horse of four or five would be regarded as either grossly ignorant of his business or utterly reckless as to his own interests, if not positively cruel. Do our modern usages not show a neglect of facts of vital moment still more marked? Unfortunately, the woman all her life must live, to a greater or less extent, on a sort of periodic up-curve or down-curve of vitality; and that this fact is so generally ignored by society and educators is one of those peculiarities of our age at which, in spite of its great advancement in so many directions, a future generation must wonder. To use the voice when the health is even slightly disordered is not without risk to the vocal organs, and it is the clear duty of every teacher of vocal culture, at all events, to allow no practice and to give no lessons that imply the actual use of the vocal organs at these times. Nor is this a great loss, rightly considered, for the intellectual side of the subject, which requires so much attention, may readily be made to take the place of the vocal for a few days.