H. R. Streeter 
Voice Building 
A New and Correct Theory for the Mechanical Formation of the Human Voice

Whilst the greatest effort has been made to ensure the quality of this text, due to the historical nature of this content, in some rare cases there may be minor issues with legibility. The present work is the result of more than twenty years experience. It has been undertaken at the earnest solicitation of friends and pupils, and it is believed to be the only work which really treats upon the mechanical formation of the human voice.<br><br>Many theories are before the public which are designed to form and develope the voice. Musical authors and elocutionists have presented to the public a mass of material which, to say the least, is contradictory.<br><br>Our experiences are here embodied, and we sincerely hope that they may prove beneficial to all who feel an interest in the art of Voice Building.<br><br>It will be observed that we have confined our treatment entirely to the mechanical part of the work; forming the instrument, so to speak, by following fixed laws or rules, which prove themselves to be practically correct.