[231.] EXPERIMENTUM IV.

[232.] EXPERIMENTUM V.

[233.] CAPUT OCTAVUM. De Adſcenſu Liquorum in Tubos ſibi mutuo immiſſos.

[234.] DISSERTATIO PHYSICA EXPERIMENTALIS DE ATTRACTIONE SPECULORUM PLANORUM VITREORUM.

[235.] EXPERIMENTUM I.

[236.] EXPERIMENTUM II.

[237.] EXPERIMENTUM III.

[238.] EXPERIMENTUM IV.

[239.] EXPERIMENTUM V.

[240.] EXPERIMENTUM VI.

[241.] EXPERIMENTUM VII.

[242.] EXPERIMENTUM VIII.

[243.] EXPERIMENTUM IX.

[244.] EXPERIMENTUM X.

[245.] EXPERIMENTUM XI.

[246.] FINIS.

[247.] DISSERTATIO DE MAGNITUDINE TERRÆ.

[248.] DISSERTATIO DE MAGNITUDINE TERRÆ.

[249.] DE MAGNITUDINE TERRÆ MENSURATÆ A W. SNELLIO, DESCRIPTÆ IN ERATOSTHENE BATAVO. LIB. II. CAP. VI. Prima Gæodæſiæ ſtatio & diſtantia inter Lugdunum Bata-vorum & Soeter woudam pagum definita.

[250.] CAPUT VII. Diſtantia inter Lugdunum Batavorum & Hagam Comitis definita.

[251.] I. Problema Diſtantia pagorum Waſſenariæ & Soeterwoudæ.

[252.] II. Problema Diſtantia pagorum Soeterwoudæ & Voorſchoten.

[253.] III. Problema. Diſtantia pagorum Waſſenariæ & Voorſchoten.

[254.] IV. Problema Diſtantia pagorum Waſſenariæ & Voorſchoten, iterata Gæodæſia tentata & expreſſa.

[255.] V. Problema Diſtantia Hagæ & Leidæ.

[256.] VI. Problema Eadem diſtantia inter Hagam & Leidam aliter tentata.

[257.] CAPUT VIII. Omnium reliquorum locorum ad inſtitutam Gæodæſiam adbibitorum intervalla definita.

[258.] I. Problema. Triangulum A E S, Leida, Haga, Gouda.

[259.] II. Problema. Triangulum E S R. Leida, Gouda, Dordracum.

[260.] III. Problema. Triangulum E A R. Leida, Haga, Dordracum.