GENERAL SCIENCE. 



999 



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Six, James. The construction and use of a Thermometer for shewing 

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Skynner, William Augustus. Directions to be observed by vessels 



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Sladen, W. Percy. Echinodermata of the Arctic Sea. See Duncan, 



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other Bezoar-stones, which prove them to be of no use in physick ; 



Gascoin's powders examined ; a vindication of Sugars. 



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 An Account of the nature and excellent properties and vertues 



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Sleigh, Francis. A Diagram illustrating a Discovery in the Relation 



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8°. Londini, 1696. 



