378 EXPERIMENTA CIRCA LONGIT. 



detur ex ipfo cxperimcnto , quae fit — j", habebitut 



jwz-f (1 + 2 + 3. .. .4«) xz:s. Hmc x — —!-^;^ — ^ 



fel fi continuo omnes concurfus fuerint obferuati 



s -{n-\- x)t 

 eru » = «+., et.v = — j—p 



Fada applicatione ad expcrimentum fit x— 79^. 

 ai'. 43", w— 14, w/zz 73^ 58' o" et diuifor, 

 quia nonus concurfus dcficit , hoc modo exprimi po- 

 terit 1«^«+ i} — 9j ^c erit illc — 96; vnde inter- 

 vallum temporis , quo penduhim fimplex pnie ho- 

 rologio Aftronomico hicratur vnam ofcillationcm, 

 prodit — 3'. 22'', 3, et numerus ofcilhitionum fpatio 

 diei Solaris mcdii in temperie acris 3° (upra o a 

 peudulo fimphci Kohic coaRdarum 8<55-}(5, 7. 



Per mukiphcia rero Grijchouii experimcnta 

 conftat "Nariationem trium graduum thcrmomctri 

 Reaumuriani produccre \ariationcm \nius quam pro- 

 xime olcillatiouis in motu pcnduh fimphcis fpatio 

 dici Solaris medii ,* quarc \t cxpcrimcnta nollra ad 

 eandem tcmpcrii.m , in qua Parifiis codem pendulo 

 ab abbatc de la Caille inlhtuta funt ncmpe 12' fu- 

 pra o, rcducantur , a numero inucnto fubtrahi dc- 

 bent 3 ofcillationcs , et prodit numcrus olcillatio- 

 num quacfitus 865435 7- 



EXPERIMENTA^M 11. 



Dic f,. luhi rctardatione horologii Aflronomi- 

 ci a dic folari mcdio cxifkutc V- 4i"> - in tcmpe- 



rie 



