An Account of an Experiment, Made to Ascertain the Proportion of the Expansion of theLiquor in the Thermometer, with Regard to the Degrees of Heat. By Brook Taylor, LL.D. R. S.S.Author(s): Brook TaylorSource: Philosophical Transactions (1683-1775), Vol. 32 (1722 - 1723), p. 291Published by: The Royal SocietyStable URL: http://www.jstor.org/stable/103619 .

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III. An Account of an Experiment, made to afser_ tvin the- (Profortioe of tl6vw Expanfon of the Li- qxorintbe IhersnonzeterX withqtegrdtotheSe grges of Heat. !By Brook Taylor, LL.O. t.S.S.

T T llLasX I believe, bnen generally fsppofed) tho' not 1 prolJed) tllat the E;xpanficxn of the Liquor in the Therlmorneter is proportionat to the Increafe of Heat. To deterluine this Matter witll C8ertainty) I made the following Experiment.

I pronided a good LiruSeed Oit Tllermometer) xarllicl I Inarked witll finall Div9Sons, not equal in Length, but eqtual according to tlle Capacity of the Tube in tlle feveral Parts of it, as all Tllertnometers ought to be graduated. I likewiCe proxided two Azreffels of thin Tin? of tI1e fame Sllape) and equal in Capacity) contain- ing cacl:z about a Gal Ion. rtilen (obServirig in exrery Trial, that tile VeiTels were cold) l)efore tlle Water Was put on rlletn, as alfo tilat the VeSel I tneafured tlae Ilot Water BJitilX vsJas well lleated witll it) I filcceAllvely fill'd tlze \TelTels witil one) two, tilreeX eSc. Parts of aOt l5siling V{ater and tlle reR cold a alld at 1ak witll all tlle Water boilirlg 11otj and in evWry Cafe I iEntner- fed t1lle Thertuc)lneter invo tl<e Watera and obCerared to Wh?.t Ala.rk it rssfe) making eacll Trial in botll VeIlels fo3r vlae grcat2r Accuracy. ;Xnd l1aving firk olDGerxred nvll.re tlae fi:tlaerlw}otneter llood in cold \Vater) I found that it'3 -i{in33 ir0ln tllat Atirar-k) or the Expanfion of the O jls3 sva^3 accurltely proportionaI-to tlle QuRntity of tlOt

\@ta.eu in tlle t/tixture3 that tsr to the Degree of Heat. t IV. Sn

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