bis New Obfervations of Saturn and Jupiter, made by means 
thereof. 
Firft therefore, after that M. Au^out had raifed fome fcruple 
againft the Contrivance of Signor Campani for making Great 
OptickyGlaJfes without Moulds, by the means of a Turn lath , he 
examines the Obfervations, ma&Q with fimhG/^/:Where 3 having 
commended Campani' s fincerity in relating what he thought to 
have feen in Saturn, without accomodating it to M. Hugens’s Hy- 
potb efts fie affirms, that luppofing, there be a f?ng about Saturn, 
Signor Campani could not fee in all thofe different times, that he 
obferved it, the fame Appearances, which he notes to have ablual- 
/yfeen. For, having feen it fometimes m TrzW AfpeH with the 
Sa^and Oriental ; fometimes, in the fame AjpeH., but Occidental ; 
fometimes in Sex til Afpefl^nd Occidental -at another time,again 
in Trine, and Oriental , this Author cannot conceive, how Saturn 
could in all thefe different times have no difference in its Phafs , 
or keep always the fame Shadow s feeing that, according to the 
Hypothefs of the 7(z«£ 3 when it was Oriental \ it muff call theSbad- 
dow upon the left fide of the Tftng beneath , without calling any 
on the right fide : and when it was Occidental, it could not but caft 
it on the right fide beneath^ and nothing of it on the other. 
Concerning the Shadow above , which Campani affirms to be 
made by the King upon the Body of Saturn^ M. Au^ut judges , 
that there could be no (uchPk<enome?ion,by reafon of its Northern 
Latitude at the times, wherein the Obfervations were ma de,vid. in 
April 1663; in the midft of Auguft,znd the beginning of OUober , 
next following, and in April 1664., except it were inttoto, and 
the Shadow ftrong enough to become vifible. 
But as to the Shadow below, he agrees with Campani , that it 
does appear, yet not as he notes it, feeing that it muff be fome- 
times on the one fide, fometimes on the other; and towards the 
•Quadrat with the Sunk muft appear biggeft,as indeed he affirms 
to have feen it himfelf.^ff year, infomnch that fometimes it 
Teemed to him,that it covered the whole j&yig,qx\d thatthed’/^W- 
\dow 0 joynirig with the obfeure fpace between both, did interrupt 
the circumference of the tog ; but beholding it at other times 
in a cleer Sky, and when there was no Trepidation of the Air 5 
K 2 he 
