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existence of a nature other than physical, an entity of a 

 higher order than material. But the true and complete 

 scientific spirit requires us to demand for phenomena of 

 every kind a suitable and sufficient explanation according 

 to its kind. The phenomena of light and heat, borne 

 from the sun to the earth, carried through spaces where 

 ordinary matter exists not, require of us that we acknow- 

 ledge the existence of an element suitable for conveying 

 them, an element possessing properties such as can 

 explain the phenomena. We cannot see the ether. We 

 cannot feel it. We cannot perceive it as in the case of 

 ordinary matter. But its activities in yielding light and 

 heat make its existence and chief characteristics clearly 

 and certainly known. And so, though we cannot per- 

 ceive by any of our senses the mind that is at work in 

 the midst of and producing nature's wonders, that is no 

 reason why we should not admit its presence, if, as in 

 the case of the ether, we see signs of its action. We 

 ourselves are not wholly material beings, bundles of 

 material forces. We are more mental. In us the 

 greatest thing is mind, the greatest and most outstanding. 

 By our mind we understand physical work, and that, 

 when physical work is done, it must have a cause. We 

 understand mental work also, we can recognise its signs, 

 and that where these are mind must be or must have 

 been. And we cannot but ask an account of the order 

 and marvellous amount of adjustment and intricacy of 

 adjustment in ovules and organised bodies. The pheno- 

 mena are there. They are altogether of the kind which 

 mind produces. They evidence themselves by the senses 

 to the intelligence. They are as real and certain as those 

 which proclaim the presence of light and heat and tell of 

 the ether. They are light. They shine with surpassing 

 splendour. They dazzle. They astound. And they are 



