The Voice in Singing

The original print of this book uses Helmholtz pitch notation, where middle-C is represented by a lowercase c with one over-line, the C above with two over-lines, etc. For accessibility, I have used the alternative convention of using numbers after the note name, thus:
C 1 … C … c d e f g a b c 1 d 1 e 1 f 1 g 1 a 1 b 1 c 2 … c 3 … c 4
(C 1 = 3 octaves below middle-C, c 4 = 3 octaves above middle-C)

TRANSLATED FROM THE GERMAN OF EMMA SEILER Member of the American Philosophical Society
A NEW EDITION REVISED AND ENLARGED
PHILADELPHIA J. B. LIPPINCOTT & CO 1879
Entered, according to Act of Congress, in the year 1872, by J. B. LIPPINCOTT & CO. , In the Office of the Librarian of Congress at Washington.
Lippincott’s Press, Philadelphia.
The translator of this book, desirous, in common with other friends of its author, that her claims as a lady of rare scientific attainments should be recognized in this country, where she has recently taken up her abode, has obtained her consent to the publication of the following testimonials to her position in her own country from gentlemen of the highest eminence in science:
In a letter, written in English, addressed to the President and Members of the American Philosophical Society, Professor du Bois-Reymond introduces Mrs. Seiler (italicizing the words) “ as a lady of truly remarkable scientific attainments .” “Prompted,” he states, “by a spirit of philosophical inquiry, not frequently met with in her sex, she has made herself entirely acquainted with all the facts and theories concerning the production of the human voice. She has entered, deeper probably than any one else before her, into the study of the problem of the different registers of the human voice. Most of her results she has published in a pamphlet under the title: Altes und Neues über die Ausbildung des Gesangorganes (Leipzig, 1861), which has received the approbation of both the physiologists and the singing masters of this country.”