mind of man can approach the works of God. She has led the mind "through all that' humanizes man, through all that is sub lime in his progress to a higher state, through all that vast ma chinery which the Almighty has made tributary to his comfort and his happiness," up to that point where he can only stand in awe at the very sublimity of his conceptions, while his soul reaches up to its Maker as it instinctively re-echoes with the mighty Kepler, the keynote of all true science : "0 God, I think thy thoughts after thee." The harmony with which the Omniscient has constructed his works, revealed to man by the mathematical relations 'which they exhibit, has ever been the star of hope in the quest for the un known. It has risen as rose the star of Bethlehem to the wise men of the East. Pythagoras saw it, dimly, just above the horizon. Slowly it has ascended, ever increasing in brilliance and guiding its followers with unfailing certainty through the deepest dark ness. Higher yet it must rise until it reaches its zenith, and its brightness will grow dim only as the shades of night give way before the dawn of eternal morning. Then— "As God's own hand draws back the curtain That hides the infinite from sight, And life, relieved of limitations, • Rises to that grander height, Earth's harmony will fade in Heaven's And we shall view in perfect light. Mortal man ! would you a vision Of those heavenly beauties see? Then find it in God's book of nature, In ways that he reveals to thee." FORESTRY IN PENNSYLVANIA. Our own country has outdone oth6r countries by its terrible sacrifice of the supply of timber; for the United States uses from For estly in Pendsylvania. E. G. F., 'O5.