The collection of ethnological parallels for the case of sociology and comparative jurisprudence has proceeded in a most fruitful manner, and it has now become all the richer for the valuable con tributions of archaeology. The spade has revealed traces of cul tures unknown to history, and for the most part lacking all written record. The study of social origins has thus taken on an entirely fresh aspect and though it has only postponed the longer the solution of the big questions comparative jurisprudence had hoped to solve, it has added enormously to the fascination of the sub ject. The comparison, for example, of the condition of life of the simpler peoples and the products of prehistoric cultures has proved most suggestive; few who have read such a work as Sollas' Ancient Hunters can have failed to realize this. (See also Carveth Read, The Origin of Man; G. G. MacCurdy, Human Origins; Burkitt's Prehistory [for the Old Stone Age] ; V. Gordon Childe's Dawn of History [for the New]).
Cause and Effect.—At this initial stage we have already to meet a difficulty and guard against a misconception ; we have, namely, to reckon with the plurality of causes, and are debarred from assuming that wherever similar phenomena are forthcoming they are always produced by identical causes. Death may be produced
by various agents—by sickness, by poison, by a blow. The habit of wearing mourning upon the death of a relation is a widespread habit, and yet it is not always to be ascribed to real or supposed grief and the wish to express it outwardly : savage people are known to go into mourning in order to conceal themselves from the terrible spirit of the dead which would recognize them in their everyday costume (Frazer's Golden Bough iii. 31 and General Index). This is certainly a momentous difficulty at the start, but it can be greatly reduced and guarded against in actual investiga tion. In the example taken we are led to suppose different origin because we are informed as to the motives of the external cere mony, and thus we are taught to look not only to bare facts, but to the psychological environment in which they appear. And it is evident that the greater the complexity of observed phenomena, the more they are made up of different elements welded into one sum, the less probability there is that we have to do with conse quences derived from different causes. The recurrence of group marriage in Australia and among the Red Indians of North America can in no way be explained by the working of entirely different agencies.
Borrowing.—The easiest way of explaining a similarity is by attributing it to a direct loan. The process of reception, of the borrowing of one people from another, plays a notable part in the history of institutions and ideas. The Japanese have in our days engrafted many European institutions on their perfectly distinct civilization; the Romans absorbed an enormous amount of Greek and Oriental law in their famous jurisprudence. A check upon explanation by direct loan will, of course, lie in the fact that two societies may be entirely disconnected, so that it comes to be very improbable that one drew its laws from the other. Although migrations of words, legends, beliefs, charms, have been shown by Theodor Benfey and his school to range over much wider areas than might be supposed, still, in the case of law, in so far as it has to regulate material conditions, the limits have perhaps to be drawn rather narrowly. In any case we shall not look to India in order to explain the burning of widows among the negroes of Africa; suttee may be the example of this custom which happens to be most familiar to us, but it is certainly not the only root of it on the surface of the earth.