'UNITED STATES PATENT LAWS.' BISHOP POTTER ON LABOR AND MACHINERY. The Scientific American Supplement (Established ISY6) Building Edition of Scientific American. (Established 1!385.) Export Edition of the Scientific American (Established 1875) & CO. any failure delay or irregularity in receipt of papers. Contents. (Illustrated articles are marked with an asterisk.) Bicycle holder Risdon & Poole's 324 Business ninety-six years ag 324 Chromatizing dry plates 328 Crops of 1896 324 Dry dock leak Brooklyn Navy Patents granted weekly record of 332 TABLE OF CONTENTS OF Scientific American Supplement 1 To. 6. Price 10 cents. For sale by all newsdealers. I. BOTANYFritillaria Pluriflora.-1 illustration MELT. . 17840 Note on the Dajeeling Railway in India 17840 XI. STEAM ENGINEERINGThe Testing of Indicator Springs An account of a very interesting apparatus for making exact tests of indicator springs.-3 illustrations 17838 XII. TECIINOLOGYCement for Bicycle Tire 17836 ARMSTRONG 17841 esting piece of machinery.-2 illustrations 17842, 1897-05-22
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