IF we ask how the cosmos came into existence we shall find that ultimately we can only attribute it to the Self-Contemplation of Spirit. Let us start with the facts now known to modern physical science. All material things, including our own bodies, are composed of combinations of different chemical elements such as carbon, oxygen, nitrogen, &c. Chemistry recognizes in all about seventy of these elements each with its peculiar affinities; but the more advanced physical science of the present day finds that they are all composed of one and the same ultimate substance to which the name of Ether has been given, and that the difference between an atom of iron and an atom of oxygen results only from the difference in the number of etheric particles of which each is composed and the rate of their motion within the sphere of the atom, thus curiously