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Instruction for Using The Sykes Hydrometer and Supplied Tables: (Scanned from an original Dring & Fage Sikes User Manual, printed in 1855.) (Click on any small image to see a large, full detail image). Strength Tables Samples: (Complete Strength tables are on file. If you'd like to see more use the inquiry page.) The temperature tables shown were strategically picked, and are:
Using the Comparative Slide Rule: (Scans courtesy of Jerry Valdes) Using the Proof Slide Rule: (Scan courtesy of Jerry Valdes) Back to Index |