[111.] EXPERIMENTUM LXXXIX.

[112.] EXPERIMENTUM XC.

[113.] EXPERIMENTUM XCI.

[114.] EXPERIMENTUM XCII.

[115.] EXPERIMENTUM XCIII.

[116.] EXPERIMENTUM XCIV.

[117.] EXPERIMENTUM XCV.

[118.] EXPERIMENTUM XCVI.

[119.] EXPERIMENTUM XCVII.

[120.] Tabula Declinationis Acus Magneticæ Pariſiis obſervatæ.

[121.] EXPERIMENTUM XCVIII.

[122.] DE ACU INCLINATORIA.

[123.] EXPERIMENTUM XCIX.

[124.] EXPERIMENTUM. C.

[125.] EXPERIMENTUM CI.

[126.] EXPERIMENTUM CII.

[127.] EXPERIMENTUM. CIII.

[128.] DISSERTATIO

[129.] EXPERIMENTUM CIV.

[130.] EXPERIMENTUM CV.

[131.] EXPERIMENTUM CVI.

[132.] EXPERIMENTUM CVII.

[133.] EXPERIMENTUM CVIII.

[134.] EXPERIMENTUM CIX. DE FABRICA VERSORIORUM.

[135.] CAPUT QUARTUM.

[136.] EXPERIMENTUM CX.

[137.] EXPERIMENTUM CXI.

[138.] EXPERIMENTUM CXII.

[139.] EXPERIMENTUM CXIII.

[140.] EXPERIMENTUM CXIV.