... position at the present day. The present theories of the transmission of light and sound; of the production of winds, and sun-spots, and of the method of development and dissemination of heat, ... What is the intimate and inherent nature of those forces? Do they, or either of them, belong to the domain of the supernatural? Are they the products of some supreme force, or forces, heretofore ... ten feet of space. Present theories of Supply of Sun-heat. The present theories of the production and dissemination of sun-heat, are simply accepted for want of better, and not because they account...