Full text: Musschenbroek, Petrus: Physicae experimentales, et geometricae de magnete, tuborum capillarium vitreorumque speculorum attractione, magnitudine terrae, cohaerentia corporum firmorum dissertationes

# # # Grad. # Min.
Anno 1728. # 20 # Aprilis # 13 # 18
# 21 # # 13 # 15
# 22 # # 13 # 15
# 23 # # 13 # 15

Verum Inſignis artifex Londinenſis Graham accuratius ad hanc
rem attendit, plurimaſque inſtituit obſervationes, quas inſeruit
Actis Philoſophicis Anglicanis N°. 383. A°. 1724. pag. 96. quas,
utpote præſtantiſſimas, hic adnectam, quoniam ex iis cum noſtra,
tum obſervata Tachartii, quæ prima fronte dubiæ fidei viderentur,
penitus confirmantur & illuſtrantur.

Accuratiſſimam conſtruxit Acum, longam, fortiſſimo Magneti
bene affrictam, incluſam capſulæ cupreæ, quæ arcum circuli con-
tinebat, in quo Gradus & Minuta habebantur; capſula hâc impo-
ſitâ Meridianæ lineæ, ut melius obſervaretur Declinatio Acus ver-
ſus occidentem, invenit ſequentia

8 Martii # # Declinatio \\ Acus erat # # # # Alia Acus incluſa \\ capſulæ ligneæ
1722. # Grad. # M. # Hora, # Min. # Gr. # Minuta:
+ hoc ſignum \\ notat plus \\ aliquid. # 14 # 30 # 3 # 0 # 14 # 25 +
# 14 # 20 # 3 # 15 # 14 # 20
# 14 # 15 + # 4 # 0 # 14 # 10
--- hoc minus \\ aliquid. # 14 # 20 # 4 # 15 # 14 # 15
# 14 # 25 # 5 # 0 # 14 # 20
# 14 # 25 # 5 # 30 # 14 # 20
# 14 # 15 # 5 # 45 # 14 # 10
# 14 # 0 # 5 # 57 # 14 # 0---
# 14 # 0--- # 6 # 8 # 13 # 55
# 13 # 50 # 6 # 15 # 13 # 40
# 14 # 20 # 6 # 38 # 14 # 15 +
# 14 # 0 + # 6 # 48 # 14 # 0
# 14 # 0 # 6 # 54 # 14 # 0---
# 14 # 5 # 7 # 5 # 14 # 0 +
# 14 # 10 # 7 # 15 # 14 # 5
# 14 # 0 + # 12 # 0 # 14 # 0 +

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