Note 4 — Introduction: The Subject, Method and Scope of this Inquiry

It would be easy to quote works of high repute, and with a scientific hall-mark on them, in which wholesale generalisations are laid down before us, and we are not informed at all by what actual experiences the writers have reached their conclusion. No special chapter or paragraph is devoted to describing to us the conditions under which observations were made and information collected. I consider that only such ethnographic sources are of unquestionable scientific value, in which we can clearly draw the line between, on the one hand, the results of direct observation and of native statements and interpretations, and on the other, the inferences of the author, based on his common sense and psychological insight.4 Indeed, Some such survey, as that contained in the table, given below (Div. VI of this chapter) ought to be forthcoming, so that at a glance the reader could estimate with precision the degree of the writer’s personal acquaintance with the facts which he describes, and form an idea under what conditions information had been obtained from the natives.