Prof. Pupin suggests that a beam of light representing a certain number of vibrations per second, intended to convey the color red, is sent forth from the sun. It speeds through space until it reaches the earth; where intent upon its eager quest it passes unresting through all the meadows, since no grass-blade is adjusted to receive it; no daisy or buttercup, no lily or heliotrope being disposed to welcome it; it passes over all gardens until it finds a rose; and here it pauses and finds welcome. Why? Because the rose has a natural affinity for it, and like two lovers in mutual affection they meet and embrace each other, and are blended in the harmonious union of nature's electric law of life, growth and beauty. The same law of mutual attraction and wireless telegraphy creates the lofty elm, the towering oak, the blade of grass and the waving fields of golden grain in the Autumnal harvest. Dr. Burrell makes an apt and beautiful illustration of these truths of nature in their analogy to spiritual laws. He says: "This process which has been discovered to be so prevalent in nature has infinite field and scope of operation in the province of spiritual things. God as the great transmitter of truth bears to the spiritual world a relation corresponding to that of the sun in the natural world. Assuming that there is a God, and that we are created in his image and after his likeness, it follows as an inevitable conclusion that He will somehow reveal himself to his children and hold converse with them. But here is the application of the principal referred to: _The man who would hear the wireless messages of God must Himself be attuned or adjusted to the character of God._" This is superlative truth that all wise men should consider and not have occasion to lament, like Charles Darwin, at the close of his long life of physical investigation, that he had starved his spiritual nature. For our thoughts depend on our receptive natures and our lives are just what we make them, and our future is according to our character and the inscrutable laws of life and destiny. O! the wisdom of the wisest; O! the goodness of the good! Gleaning through the sweep of ages where Divinity hath stood, Shining footprints of celestials, through the mystic gleaming bars, Of the ever past and present speaking in the earth and stars. How they teach the lofty spirit of the beautiful Beyond, Of God's uttered truth and goodness, if but yearning souls respond. * * * * * WHAT IS SAID OF CITIES OF THE SUN By GEORGE WOODWARD WARDER "You have struck out on original and alluring lines of thought and investigation in which you stand alone. It must be a thrilling sensation to blaze a new trail for the coming march of men. The great highways of present knowledge were once obscure and hidden paths."--_Lord Salisbury._ "He has the scientific knowledge of Flammarion combined with the fancy of Jules Verne."--_Nicola Tesla._