[31.] PROPOSITIO VIII.
[32.] PROPOSITIO IX.
[33.] PROPOSITIO X.
[34.] PROPOSITIO XI.
[35.] PROPOSITIO XII.
[36.] PROPOSITIO XIII.
[37.] PROPOSITIO XIV.
[38.] PROPOSITIO XV.
[39.] PROPOSITIO XVI.
[40.] PROPOSITIO XVII.
[41.] PROPOSITIO XVIII.
[42.] PROPOSITIO XIX.
[43.] PROPOSITIO XX.
[44.] PROPOSITIO XXI.
[45.] PROPOSITIO XXII.
[46.] LEMMA.
[47.] PROPOSITIO XXIII.
[48.] PROPOSITIO XXIV.
[49.] PROPOSITIO XXV.
[50.] PROPOSITIO XXVI.
[51.] HOROLOGII OSCILLATORII PARS TERTIA.
[52.] DEFINITIONES. I.
[53.] II.
[54.] III.
[55.] IV.
[56.] PROPOSITIOI.
[57.] PROPOSITIO II.
[58.] PROPOSITIO III.
[59.] PROPOSITIO IV.
[60.] PROPOSITIO V.