Scientific American Supplement No. 822, October 3, 1891
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1. Front matter2. NEW YORK, October 3, 18913. THE REDOUTABLE.4. ARMOR PLATING ON BATTLESHIPS: FRANCE AND GREAT BRITAIN.5. DEMOLITION OF ROCKS UNDER WATER WITHOUT EXPLOSIVES-LOBNITZ SYSTEM.16. PROGRESS IN ENGINEERING.7. IMPROVED CHANGEABLE SPEED GEARING.8. ELECTRICAL STANDARDS.9. THE TWO OR THREE PHASE ALTERNATING CURRENT SYSTEMS.10. THE LONDON PARIS TELEPHONE.111. THE MANUFACTURE OF PHOSPHORUS BY ELECTRICITY.12. NEW BLEACHING APPARATUS.13. THE USE OF COMPRESSED AIR IN CONJUNCTION WITH MEDICINAL SOLUTIONS IN THE TREATMENT OF NERVOUS AND MENTAL AFFECTIONS.14. EYESIGHT: ITS CARE DURING INFANCY AND YOUTH.115. THE WATER MOLECULE.116. THE FORMATION OF STARCH IN LEAVES.17. STANDARDS AND METHODS FOR THE POLARIMETRIC ESTIMATION OF SUGARS.118. THE GRAND FALLS OF LABRADOR.19. ANTS.20. A GEM-BEARING GRANITE VEIN IN WESTERN CONNECTICUT.21. THE STUDY OF MANKIND.22. Architects and Builders Edition.23. Useful Engineering Books24. PATENTS!