Part 1

=Duality of Man's Nature=

I.--DUALITY OF VOICE

DUALITY OF VOICE

AN OUTLINE OF ORIGINAL RESEARCH

EMIL SUTRO

AUTHOR OF "THE BASIC LAW OF VOCAL UTTERANCE."

G. P. PUTNAM'S SONS NEW YORK AND LONDON The Knickerbocker Press 1899

COPYRIGHT, 1899 BY EMIL SUTRO

Entered at Stationers' Hall, London.

The Knickerbocker Press, New York

"There is nothing in our composition either purely material or purely spiritual."--MONTAIGNE.

CONTENTS

CHAPTER PAGE

I.--INTRODUCTION 1

Comments of a Distant Reviewer 15

Fragments 22

Basic Law of Vocal Utterance 37

The Voice of the Œsophagus and its Vocal Cords 41

II.--THE HUMAN VOICE 44

Introspection 50

Making Parts Rigid 56

Extirpation 59

Movements of the Tongue 61

Simple Sounds 66

Posterior Surfaces 68

Inspiration--Expiration 77

Diaphragms 80

III.--IMPRESSION--EXPRESSION 83