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ta clepsydra extremum regula: p plus-quam antea deprimatur longiori tem-pore effluet sublata in clepsydra aqua,8c ob id ex canali plus vini educetur.Si vero tota clepsydra extollatur, mul-to magis effluet. Ne igitur manu de-primamus extremum regulae p, sit quod-dam pondus $ in exteriori regulae par-te p% delatum: 8c quando fuerit pro-pe p totam extollet clepsydram, quan-do vero remotius minus extollet. Ita-que experientia invenientes mensuras,quas volumus canalem «T fluere, inci-siones faciemus in regula p^ , & men-surarum descriptiones. Quare cum vo-lumus partem aliquam effluere, ad illasincisiones pondus deducentes flueredimittemus.

Fluxilis constructio, ita ut in prin-cipio quidem fluat mixtum, quandoautem voluerimus aqua infusa,aqua ip-sa per se fluat, & rursus mixtum. Sitfluxile « 2, obstructum habens collumdiaphragmate yS, per quod tubus t'Cimpellatur in effusionem deferens, ha-bensque parvum foramen ti intra flu-xile. Sit autem in fluxili sub diaphrag-mate spiraculum 9.Quando igitur com-prehendentes effusionem ^mixtum in-fundamus, procedit in fluxile per fo-ramen «; & quando effusionem dimit-tamus, fluet mixtum, aere per spira-culum 9 excedente. Quando autemspiraculum 9 comprehedentes puramaquam infundamus, mixtum quidemnon fluet, propterea quod aer nonhabet ingressum, sed pura aqua. Etquando spiraculum dimittamus utra-que fluent, 8c aqua, &: mixtum; vide-licet mixtum, quod rursus ex utrisquegignitur.

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