C 5079 ) 
Dirputatioas(as they are here to be fouod)he had begun a few 
flieers of the ^/i^/'s which was about the Diagram oi Hippar- 
duf^tQva which fome have pretended exactly to demonftrate 
the Diftanee of the Sun. After which follow two Difputati- 
ons more^ tht o?2s^yoftht Celeftial bodies and their MotioD^ the 
other:, his Anfwer to the Cavils oiHorten^us z^2du^Tycho, So 
much of the F/r/ part of this 
Thd/^^^^^cx)ntaios a good number o( Extracts out of this 
Authors Letters to his intimate friend and induftrious compa^ 
nion in the Study of Aftronomyj William Crahtree. In which 
occurr many good Celeftial ObfervationSj interlaced with di- 
vers notable difcourfes concerning the Method of his ftudies. 
Thtihirdy is a Catalogue of Aftronomical ObfervationSj as 
they were made by our Authorj without allowance for the Ex- 
centricity oftheEye^which he afterwards caftigated by a cor- 
rection fairly written with his own hand. 
The/o«r^^5 is his iVew Theory of the Mood, together witb 
the Lunar Numbers of Mr. Flamjiead upon it. 
To thefe are annexed,/r/? the Celeftial Obfervations of Wil^ 
Ham Crabtree, concerning Saturn^ Jupiter^ Mars and P^entis $ and; 
then^ Mr.FlamJieeds Differtation ofthe Inequality of Solar days^ 
wherein are demonftrated the Pro///??^:?/?^!?/?/ of thetime^ ne- 
•Ceflary to make an Equation^and proceeding from the Une- 
qual motion of the Earth from the Aphelion to the Perihelim^znd 
the Inclination from the Equinoxes to the Soljlifes:^ zud vice 
verfa, ' 
Mil Marcelli Malpighii Phil. & Medici Bononienfis Diprtatis 
Bpijlolica de Formatione Pulli in OvoiLondtni ^/Wjoh. Mar- 
tyn Soc. Reg, Tyfographum^ ad in[igne Campane in €£meterio; 
S. Vault J 1672, in /\.\ 
'^"TT^His excellent Philofopher and Accurate Anatomift, a 
X very Induftrious and ufeful Meraber of the K^^^t^a^/^^har. 
ving^in zManufcript prefented that iHuftrious body with his 
Obfervations upon the Formation of a Chick in an Egg as well- 
before z$ after Incubation 5 and that Company having eftecm- 
*ed them very worthy the Prefsjas well to do the Author righr^; 
as to give occafion to others to inquire fmr^her into a matter 
fo conducive for finding out the nature of Generation : We 
ftiall here give fome accompt of this well-confider'd difcourfej 
after we have intimatedj thatan Englifli PhyfitiaUj a worthy 
Member 
