Page:Philosophical Transactions - Volume 004.djvu/114

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Numb. 50.

PHILOSOPHICAL

TRANSACTIONS.


August 16. 1669.


The Contents.

An Invention for Estimating the Weight of Water in Water with ordinary Ballances and Weights.An Extract of a Letter, containing an Accompt of a Passage by sea to the East-Indies.Some Considerations about Slate.Observations concerning the odd Turn of some Shell-snailes, and the Darting of Spiders.An accompt of some Books. I.GEORG. SINCLARI ARS NOVA et MAGNA GRAVITATIS et LEVITATIS.II.OBSERVATIONES MEDICÆ, è Musæo THOMÆ BARTHOLINI.III.OTTON. TACHENII HYPPOCRATES CHYMICUS.IV.TH. BARTHOLINI Dissertatio de CYGNI ANATOME, nunc aucta à CASP. BARTHOLINO F.V.ÆGIDII STRAUCHII BREVARIUM CHRONOLOGIUM.VI.ABREGE CHRONOLOGIQUE de L'HISTOIRE SAGREE et PROFANE, parle P. LABBE.

An Invention

For Estimating the Weight of Water in Water with ordinary Ballances and Weights.

THe Anchor of this Invention is the Noble Robert Boyle; who was pleas'd to comply with our desires of communicating it in English to the Curious in England, as by inserting the same in the Latin Translation of his Hydrostatical ParadoxesHe