[421.] Experimentum 7.

[422.] Experimentum 8.

[423.] SCHOLIUM. 1. Demonſtrationes n. 1150. 1152.

[424.] SCHOLIUM 2. De Soni intenſitate.

[425.] FINIS. CORRIGENDA.

[426.] IN MARGINE

[427.] FINIS.

[428.] De quelques Livres nouveaux & autres, que PIERRE VANDER Aa a LEIDE a imprimé oureçu de divers endroits, & quiſe trouvent dans ſa Boutique.

[429.] ET AUTRES

[430.] PHYSICES ELEMENTA

[431.] MATHEMATICA, EXPERIMENTIS CONFIRMATA. Sive Introductio ad Philoſophiam

[432.] NEWTONIANAM. Auctore GULIELMO JACOB ’s GRAVESANDE, A. L. M. Jur. Vtr. & Phil. Doctore, Regiæ Societ. Lond. Socio, Aſtron. & Math. in Acad. Lugd. Bat. Profeſſore ordinario. Tomus Secundus.

[433.] LUGDUNI BATAVORUM, Apud{PETRUM VANDER Aa,\\ Typographum Academiæ atque Civitatis,\\-&\\B. & P. JANSSONIOS VANDER Aa.}Bibliop. MDCC XXI. Cum Privilegio Præpotent. Ordd. Hollandiæ & Weſt-Friſiæ.

[434.] PRIVILEGIE.

[435.] INDEX CAPITUM. LIBER TERTIUS. Pars Prima. De Igne.

[436.] Pars Secunda. De Inflectione, Refractione, & Reflectione Luminis.

[437.] Pars Tertia. De Opaco & Coloribus. Cap. XVII. De corporum opacitate. # 75

[438.] INDEX CAPITUM. LIBER QUARTUS. Pars Prima. De Mundi Syſtemate.

[439.] Pars Secunda. Motuum Cœleſtium caulæ Phyſicæ.

[440.] PHYSICES ELEMENTA MATHEMATICA, EXPERIMENTIS CONFIRMATA. LIBER III. Pars I. De Igne. CAPUT I. De Ignis proprietatibus in genere.

[441.] CAPUT II.

[442.] Definitio.

[443.] Experimentum 1.

[444.] Experimentum 2.

[445.] Experimentum 3.

[446.] Experimentum 4. & 5.

[447.] Experimentum 6.

[448.] Experimentum. 7.

[449.] Experimentum 8.

[450.] Experimentum 9.