Blancanus, Josephus, Sphaera mvndi, sev cosmographia demonstratiua , ac facile methodo tradita : in qua totius Mundi fabrica, vna cum nouis, Tychonis, Kepleri, Galilaei, aliorumq' ; Astronomorum adinuentis continentur ; Accessere I. Breuis introductio ad geographiam. II. Apparatus ad mathematicarum studium. III. Echometria, idest Geometrica tractatio de Echo. IV. Nouum instrumentum ad Horologia

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5. Ex tempore ſemidiurno cuiuſuis paralelli poſito in ſecunda columna inquirendum eſt, quo-
ta
hora Italica ſit meridies Sole eundem paralellum percurrente, hac ratione.
Detrahatur tem-
pus
ſemid.
aſſumpti paralellis ab horis 24. reliquæ enim horæ indicabunt meridiem ſecundum horas
I@alicas
, v.
g. quia detracto tempore ſemid. paralelli , quod eſt hor. 7. 41. ex 24. remanent hor. 16.
19. ideo hora meridiana erit hora 16. 19. & ſic de cęteris. Hac ratione inuentæ ſunt horæ merid. ter-
tiæ
columnæ competentis paralellis primæ columnæ.
6. Inueſtigare oportet interuallum temporis inter horam 18. Italicam, & 12. aſtronomicam,
ſeu
meridianam in quouis paralello, ſic.
Accipe differentiam inter tempus ſemidiurnum aſſumpti
paralello
, &
horas 6. ea enim eſt interuallum temporis inter horam 18. Italicam, & meridiem, v. g. in
paralello
, tempus ſemidiurnum eſt hor.
7. 42. quod ſuperat hor. 6. hor. 1. 41. ergo hora 1. 41. eſt di-
ſtantia
hor.
18. Italicæ à meridie, ſeu ab hora 12. a ſtronomica. In paralello , cum tempus ſemidlur-
num
ſit hor.
6. nulla erit differentia, quare neq; vllum interuallum. In paralello , tempus ſemidiur-
num
eſt hor.
4. 19. eius diſſerentia ad hor. 6. eſt hor. 1. 41. quare tantumdem erit interuallum inter
horam
Italicam, &
merid.

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