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62 their duty and their interest to know more than their fellows, to acquaint themselves with everything that could aid man in his arduous struggle with nature, everything that could mitigate his sufferings and prolong his life. The properties of drugs and minerals, the causes of rain and drought, of thunder and lightning, the changes of the seasons, the phases of the moon, the daily and yearly journeys of the sun, the motions of the stars, the mystery of life, and the mystery of death, all these things must have excited the wonder of these early philosophers, and stimulated them to find solutions of problems that were doubtless often thrust on their attention in the most practical form by the importunate demands of their clients, who expected them not merely to understand but to regulate the great processes of nature for the good of man. That their first shots fell very far wide of the mark could hardly be helped. The slow, the never-ending approach to truth consists in perpetually forming and testing hypotheses, accepting those which at the time seem to fit the facts and rejecting the others. The views of natural causation embraced by the savage magician no doubt appear to us manifestly false and absurd; yet in their day they were legitimate hypotheses, though they have not stood the test of experience. Ridicule and blame are the just meed, not of those who devised these crude theories, but of those who obstinately adhered to them after better had been propounded. Certainly no men ever had stronger incentives in the pursuit of truth than these savage sorcerers. To maintain at least a show of knowledge was absolutely necessary; a single mistake detected might cost them their life. This no doubt led them to practise imposture for the purpose of concealing their ignorance; but it also supplied them with the most powerful motive for substituting a real for a sham knowledge, since, if you would appear to know anything, by far the best way is actually to know it. Thus, however justly we may reject the extravagant pretensions of magicians and condemn the deceptions which they have practised on mankind, the original institution of this class of men has, take it all in all, been productive of incalculable good to humanity. They were the direct predecessors, not merely of our physicians and surgeons, but of our investigators and discoverers in every branch of natural science. They began the work which has since been carried to such glorious and beneficent issues by their successors in after ages; and if the beginning was poor and feeble, this is to be imputed to the inevitable difficulties which beset the path of knowledge rather than to the natural incapacity or wilful fraud of the men themselves.

§ 2. The Magical Control of Rain.—Of the things which the public magician sets himself to do for the good of the tribe, one of the chief is to control the weather and especially to ensure an adequate fall of rain. Water is an essential of life, and in most countries the supply of it depends upon showers. Without rain vegetation withers, animals and men languish and die. Hence in savage communities the rain-maker is a very important personage; and often a special class