For there be advantages, and di (ad vantages, id 
both ways ; which may, by fliarp words, be aggravated 
to a great hight; while yet, whether of thetwo, upoa 
the whole matter, is to be preferred, cannot be other- 
wife determined than by experience. wbo 
And in order hereunto, the Author had again anda- 
gain defifed,wich earneftnefs,that Mr. //o^^y^would^vouch- 
lafe to give him fat left) thefe eight Dittances, obferved 
by his Inftruments (great or fmall, ashe plealed,J to be 
compared with the iame oblerved by this Author. Name- 
ly, I. Lucidcz ArietiSy a Palilicio-y 2. Hujus a Polluce i 
3. Follucis a ^efr^ulo s 4. l^^uli dSpica Firginis \ HU' 
jufque i fuperiori in manu Serpentarii. 6. Hujus ah Aquilai 
7- Hujufque di Mdrcah s 8- Atqtie hujus demum h Lucida 
Arietis : But cduld never obtain from him either thele or 
any other. Though it had been no hard requeft to grant 
it,if Mr. Hoo\(:o\x\di (as he tells us) perform [according to his 
method) loo^ yea 200 Obfervations in one night. 
^ He had from Bullialdus^ Buratinus, Fulleniusy and o- 
thersjwhohad been Ey-witneffes of his obfervations, and 
afEftant at them, great atteftations of their accuratenefs : 
Others who had not fo been prefent, had yet a great 
efteem for them, notwithftanding the exceptions made 
to them by Mr. Hoo\ j blaming his cenfure as undefer- 
ved and too fevere : Ant others even of thofe who had a 
great opinion of Telefcopick^Sights, and did themfelves < 
make ufe of them, had yet afar other opinion of his-- 
Inftruments and Obfervations, than what had been ex- 
preffed by Mr. HooJ^^ And thought at left this demand 
of his, very reafonable. That it might be free for either 
to make ufe of fuch Sights as themfelves thought bcft, 
or were beft acquainted with, without taking upon them 
to prefcribe to othersfover whom they hadnoAuchority:;; 
or to reproach and vilify them becaufe not of the fame 
opinion with themfelves. All which matters of fad are 
inadeto appear by divers Letters there printed, which 
