Not until 1858, when the orchestra pitch in Paris had risen for a¹ to 448 vibrations in a second, and tenors were no longer able to reach it with the chest register, was general attention turned to this evil. The Academy at that time fixed the orchestra pitch at 435 vibrations a second for a¹. This pitch is now introduced almost universally in Germany, and it is a full half note lower than our usual orchestra pitch in America. The introduction of the Paris pitch is, however, of no great advantage so long as singers and teachers keep to the same limits of the registers that they had at the beginning of the seventeenth century, when a¹ had 404 vibrations in a second, and was about a third lower than our present a¹. Musicians are averse to the introduction of this old low pitch, as the instruments are no longer accommodated to it. And besides, it is not at all necessary, if only singers and teachers would observe it better, and either set their pieces a third lower, or sing the notes that are difficult to be reached with a lower register in a natural way and with a higher register. The old Italian masters were proud of being able so to educate the falsetto register of a tenor voice that it was difficult to distinguish chest tones and falsetto tones from one another, even for an ear accustomed to observe the finest distinctions of sound. And this art is by no means so difficult as is supposed, and is not dependent on the natural strength of the first falsetto tones. When in the male organ there exists the power of bringing the edges of the vocal ligaments into vibratory motion, and when these tones at the beginning, compared with the chest tones of the same voice, are weak and thin, then they may, with skill and perseverance, be trained to quite similar fulness. That the male voice requires far more time and practice than the female to effect an imperceptible transition from the chest register to the falsetto, is unquestionable. And while this transition is always so very apparent in the man's voice, it is often scarcely observable to a practiced ear even in uncultivated female voices. Women, in speaking, always use the second chest and the first falsetto register, continually passing from one to the other of these registers without any change in the position of the mouth or of the resonance apparatus of the voice. They are thus all their lives long unconsciously practicing this transition, and because of this equal physical use of the chest and falsetto notes, the great physiological difference of these two registers almost entirely disappears. Although men do not use the falsetto register in speaking, it is not yet proved to be impossible for the male voice to attain the same results as the female.