Part III
THE BASIS OF A REAL SCIENCE OF VOICE
[CHAPTER I]
THE MEANS OF EMPIRICAL OBSERVATION OF THE VOICE
To all knowledge obtained through the observation of facts and phenomena, the term empirical is properly applied. Empirical knowledge must be the basis of every science. To be available in forming a science, empirical knowledge of a subject must be so carefully gathered that all probability of error is eliminated; the observations must be so exhaustive as to embrace every possible source of information. From the knowledge thus obtained a set of verified general rules must be worked out with which all the observed facts and phenomena are shown to be in accord. Then a science has been erected. There is no possibility of conflict between empirical and scientific knowledge. The discovery of a single fact, at variance with the supposed general laws bearing on any subject, is sufficient to overthrow the entire structure which had been accepted as a science.