§. 6. Si inter proximos quosque huius seriei primitivae terminos ca.

piuntur differentiae, paritur series differentialis prima, cujus termini

sunt: 1.223 ³++ 0 † D5b † E † h II.+ 30+ 75+ 15E+ 31F III. B+ 50+ 19Db+ 65E+ 2u91 F IIII. B+ 70+ 375+X 175E X 781F V. B+ 90+ 15+ 369 E X— 2101 F VI. 3+ 110 † 91D+ 671 E+ 4551 F

Qua subtractione, quoties opus est, repetita prodeunt differentia-

rum series reliquae et quidem differentiae secundi ordinis:

1. a2c+. 65. 14E. 30F f. 20+. 125+. 501+ 180F III. 20+T 185 X+ 1105 X 570F IV. 20+ 2450 P—. 1945 P 1320 F V. 20C+ 300+ 302 E+ 255°F. Ordinis tertii.

I. 605+ 365+ 150F

II. 6D+ 0E.+ 390 F

III. 6b+ 84E+ 750 F

IV. 6D X 1⁰8E+ 1230 F