There is no instrument for measuring the pressure of the Ether, which is probably millions of times greater: it is altogether too uniform for direct apprehension. A deep-sea fish has probably no means of apprehending the existence of water, it is too uniformly immersed in it: and that is our condition in regard to the Ether.

The amount of sophistication varies according to the quality of the medium, and to the state of the same medium at different times; it must be attributed in the best cases physiologically to the medium, intellectually to the control.

Life must be considered sui generis; it is not a form of energy, nor can it be expressed in terms of something else.

Death is not a word to fear, any more than birth is.

Death is the end of a stage, not the end of the journey. The road stretches on beyond our comprehension.

But although life is not energy, any more than it is matter, yet it directs energy and thereby controls arrangements of matter.

If the 'Principle of Relativity' in an extreme sense establishes itself, it seems as if even Time would become discontinuous and be supplied in atoms, as money is doled out in pence or centimes instead of continuously;-in which case our customary existence will turn out to be no more really continuous than the events on a kinematograph screen;-while that great agent of continuity, the Ether of Space, will be relegated to the museum of historical curiosities.