These are rough specimens solubly, _so far as observation can carry us_, mind with matter.

The great gulf between the two has at last been spanned.

The bridge across it, that was so long seen in dreams and despaired of, has been thrown triumphantly--a solid compact fabric, on which a hundred intellectual masons are still at work, adding stone on ponderous stone to it.

Science, to put the matter in other words, has accomplished these three things.

Firstly, to use the words of a well-known writer, '_it has established a functional relation to exist between every fact of thinking, willing, or feeling, on the one side, and some molecular change in the body on the other side_.' Secondly, it has connected, through countless elusive stages, this organic human body with the universal lifeless matter.