Scientific American Supplement, No. 803, May 23, 1891
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Table of contents
1. NEW YORK, May 23, 18912. THE GREAT EQUATORIAL OF THE PARIS OBSERVATORY.3. LILY OF THE VALLEY.4. REPORT ON INSECTS5. THE BREEDS OF DOGS.6. RESTOCKING THE SEINE WITH FISH.7. MODERN ARMOR.8. THE COMPRESSED AIR SYSTEM OF PARIS.9. THE BUILDERS OF THE STEAM ENGINE—THE FOUNDERS OF MODERN INDUSTRIES AND NATIONS.110. IMPROVED HAND CAR.11. THE CONIC SECTIONS.12. TABLE OF ATOMIC WEIGHTS.13. THE TANNING MATERIALS OF EUROPE.14. AN APPARATUS FOR HEATING SUBSTANCES IN GLASS TUBES UNDER PRESSURE.115. TESTING CEMENT.16. THE SCIENTIFIC AMERICAN Architects and Builders Edition17. THE Scientific American Supplement.18. A New Catalogue of Valuable Papers19. Useful Engineering Books20. PATENTS!