He can admit with the utmost readiness that the brain is the only instrument through which supernatural life is made at the same time natural life.

He can admit that the moral state of a saint might be detected by some form of spectroscope.

At first sight, doubtless, this may appear somewhat startling; but there is nothing really in it that is either strange or formidable.

Dr.Tyndall says that the view indicated can, '_he thinks_,' be maintained '_against all attack_.' But why he should apprehend any attack at all, and why he should only '_think_' it would be unsuccessful, it is somewhat hard to conceive.

To say that a spectroscope as applied to the brain might conceivably detect such a thing as sanctity, is little more than to say that our eyes as applied to the face can actually detect such a thing as anger.