( $094 ) 
fOHANNlS FLAMSTEDU 
Derbi^nfis Angli, 
^ . A i> 
Clariffimum CASSINVM Epiftola, 
Novas obfervationes extimarum Elongationumfidcruui Medi- 
c^orum a Centro Jovis, nova fed Scaccuraid ratione ha- 
bitasj exhibens f alfjeftis quibufdam Obfervationibus ocn- 
vulgaribus, Plaoetarutn diametros & a Fixis dirtantias, nec 
1100 Martis Acronici & Perigei Parallaxin.C^^r fpeftantibus* 
Tlbi ignott^ego^ Clarijjime Caffine^ fcnpiuru^ , iuam aii- 
daci£ mes veniam plurihus verbis irem exoratum ^ td 
Bndiorum communium caufa mibi compella97ti^ clara tua inter 
C^Hj^ices ingemiim^ htilitas aliqua ohfervationum^ quas tibi 
^^^ipertituruifiim^ 7jiHd omf2in))jhpervacaHeumfore perfuaderent : 
Novas entm ob^'ervationes^ extimantm Elofigationum fiderum Mc- 
dic^onim d centro Jovisj novh fed exqmjlta ratione faCim^ 
quaiifque forfanvobk etiammm tion innoinit^ conftderationi in£ 
offero 3 quas propterea fcire tua. plmiwum irtterejje duxi^ qmppe 
ad mtnjurm OYhium ^javiaUum CQmititm determinandas^ nonnis 
hil mthi copjferre po[fe videba^tur^ quorum Te motibm ifjjiauran-' 
dis [qmd abfq^ jujia Orbtum mmfura neqHltperagi)etiam^um in- 
fuddre dpUijJimaiua ad Socictatem Regiam Epijiolaifn^mt, 
, Anni dm dr ampUm elapfi fnnt^ ex quo Eniditijjimm Richar- 
dus Townltms^Armigerymihi j tunc kof^itifuo^ pro humamiate 
quApolht erga omnes \^ fed frsfcrtim Matkem^aticoS' maximas 
JovialiufB fiderum a ce^tro Jovis digrejfhnes^ a feipfo okferva-. 
fas, nec nm moius cnju^que medios^ motuumque illonim Ra- 
dices^ ah obftrvationibus ejm dedu&af^ Townleio [no accommo" 
ddiaSj communicavit, ' Ab eodem dei^ceps Ephemeridas iuas 
Mzdic^QTum fiderum Anni 16 6S» impeiravi h quibus^ quando 
'cMmmotus ium moimm Radices^ mc non ^ fummas Elongaiio* 
ties a Te co^'Bitutar^ nonnihila Tov/oleii inventi^ dijfidere 
CGmptruij Ego^ quod ipfe impefufms hortatus ef^ ^ nonmUas 
prima qnaqmoccafoMe obfervationes inUitmre oper^fore pretium 
duxii 
