[61.] ALEXANDRO FARNESIO CARDINALI AMPLISSIMO ET OPTIMO.

[62.] FEDERICI COMMANDINI VRBINATIS LIBER DE CENTRO GRAVITATIS SOLIDORVM. DIFFINITIONES.

[63.] PETITIONES.

[64.] THEOREMA I. PROPOSITIO I.

[65.] THEOREMA II. PROPOSITIO II.

[66.] THE OREMA III. PROPOSITIO III.

[67.] THE OREMA IIII. PROPOSITIO IIII.

[68.] ALITER.

[69.] THEOREMA V. PROPOSITIO V.

[70.] COROLLARIVM.

[71.] THEOREMA VI. PROPOSITIO VI.

[72.] THE OREMA VII. PROPOSITIO VII.

[73.] THE OREMA VIII. PROPOSITIO VIII.

[74.] THE OREMA IX. PROPOSITIO IX.

[75.] PROBLEMA I. PROPOSITIO X.

[76.] PROBLEMA II. PROPOSITIO XI.

[77.] PROBLEMA III. PROPOSITIO XII.

[78.] PROBLEMA IIII. PROPOSITIO XIII.

[79.] THEOREMA X. PROPOSITIO XIIII.

[80.] THE OREMA XI. PROPOSITIO XV.

[81.] THE OREMA XII. PROPOSITIO XVI.

[82.] THE OREMA XIII. PROPOSITIO XVII.

[83.] THEOREMA XIIII. PROPOSITIO XVIII.

[84.] THEOREMA XV. PROPOSITIO XIX.

[85.] THE OREMA XVI. PROPOSITIO XX.

[86.] THEOREMA XVII. PROPOSITIO XXI.

[87.] THE OREMA XVIII. PROPOSITIO XXII.

[88.] THEOREMA XIX. PROPOSITIO XXIII.

[89.] PROBLEMA V. PROPOSITIO XXIIII.

[90.] THEOREMA XX. PROPOSITIO XXV.