All the works of God connected with the world which we inhabit, and with all other worlds, are strictly governed by law. So accurate are the movements of the heavenly bodies that even with our limited knowledge we can compute, after the departure of most of these bodies, the time of their return to a minute. The sun rises and sets with great regularity, and we can tell to a moment, by calculating the revolution of the earth, at what time it will make its appearance in the morning and disappear in the evening; the same rule applies to the moon, the whole of the solar system, and to all bodies that can be reached by our instruments. There is perfect regularity, exactitude and order associated with all worlds; a departure from which would produce incalculable evil and irretrievable destruction and ruin. With regard to the matter of which the earth is composed, it is also governed by strict, unchangeable laws; matter possessing the same properties under the same conditions, in all parts of the world. The various grasses, herbs, plants, shrubs, flowers, minerals, metals, waters, fluids or gases, when under the same conditions, are subject to or governed by unchangeable laws; and by those laws chemists or scientists are enabled to apply tests to demonstrate the properties of the various elements in nature, which they find are always immutable, and the same degree of accuracy applies to the laws and various formations of crystallization, under the same circumstances. The animal and vegetable creations are governed by certain laws, and are composed of certain elements peculiar to themselves. This applies to man, to the beasts, fowls, fish and creeping things, to the insects and to all animated nature; each one possessing its own distinctive features, each requiring a specific sustenance, each having an organism and faculties governed by prescribed laws to perpetuate its own kind. So accurate is the formation of the various living creatures that an intelligent student of nature can tell by any particular bone of the skeleton of an animal to what class or order it belongs.