he thougllt, that he faw alfo the Light continued from without, 
ahhough very flender. But he acknowledges, that he could ne- 
ver yet /?w{/<?/y determine, by how much the largenefs of the 
l^J^^g was bigger than the Diameter of Saturn s Body. As for the 
proportion of the Length to the Breadth^he afErm?^ to have al- 
waies eftimated it to be two and a half, or very neer fo \ and to 
have found in his Obfervations^ that in January laft, one time^ the 
length Saturn was 1 2 Lines^and the breadth y. Another time, 
the length was 1 2. Lines, and the breadth 4. and this by a peculi- 
ar method of his own. But yet he acknowleges alfo, that fome- 
times he hath eftimated it as 73 to 5. and at other times as 15. ;o 
5. and that if there do not happen a change in the magnitude of 
the Eing (as it is not likely there does) that muft needs proceed 
from the Conftitution of the airjOr oftheGlafs's having more or 
lefs Aperture y or from the difficulty of making an exadl eftimate 
of their proportions. However it is not much wide (faith hej of 
two and an half, although Campani m^ilsi^ the length of the 
J^ng but double to its breadth. 
Monfieur jfu^Qut believes,that he was one of the firfl that have 
well obferved this fhadow of Saturn % Body upon its 'Hings 
which he affirms happened two years iince 5 when, obferving in 
July^iov the firft time, with a Tetefcope of 11 . and then another of 
27. footjhe perceived, that the Jngle of the obfcure fpace on the 
right Jidehcnt 2th ^ was bigger and wider, than the three other 
Angles^ and that fome interruption appeared there^ between the 
l{ing, and the Body of Saturn ; of which he faith to have given 
notice from that time to all his friends, and in particular,as foon 
as conveniently he could^to Monfieur Hugens, 
He confeffeth^thathe hath not had the opportunity of obfer-- 
ving Saturn in his Oriental ^adrat 5 yet he doubts not, bat that 
thQjbadonf appears on the L^/?-7?^^, confidering, that the 
Jienceof thel{i?2g can be no longer doubted of,afcer fo many Ob^ 
fervations ohhcjhadorv c^fi by Saturn's Body upon it, according 
as it muft happen, following 'that Hypothecs ; there being no 
reafon, why it fhould caft the faid Jhadow on one fide, and not 
on the other. 
Concerning ' the Obfervation of Jupiter and its [atellites , 
the famous Afironmer of Bonmia , Cafflnus , having pub- 
lilhed. 
