his own charges, with the expence of fo much time 
and labour^ done what he was able, and with good in- 
tention, and fo much more than Mr. HooJ^^ either 
hath done/ Of is ever like to do,) hath deferved to be 
thus flighted, Icorned, and contemptuoufly expofed, 
almoft in every page, ("becaufe he had not recounted 
Mr. Hook^ in the number ofhis cheif Fautors and Pa- 
trons;) yet the Noble T}'^^^?, tho, Win^nou^ Landtgrave^ 
or fome others, (who are all equally concerned in his 
cenfures ) might have been thought to delerve bet- 
ter ; who will certainly be found, it not in all things 
(for the beft are liable to miftake fometimes) at left m 
iome things, to have performed better than Mr. Hoo]^ 
is willing to allow them. However, this he hath to 
fay for himfelf, that neither Pofterity, nor any ofhis 
Superiors, can fay, - that he was bound in duty to do 
more than he hath done. And, as to the unprofitable 
and ufelefs charge, of which Mr. H ooj^ {o oitQVi fpeaks 
ironically and with contempt (as he doth alio in his 
other {eeming commendations^ it came not out of 
Mr. Hooj^s treafury /that he need be concerned for 
it) and which will appear (the Author hopes) not to have 
been altogether in vain. That they who like not his 
Obfervations, may look by them, and wait for better, 
or make better themfelves. That the purblind or fliort- 
fighted, may (if they .pleafe) make ufe of Spectacles 
and PerfpedtiveSi but himfelf, while his Ey- fight ferves, 
fhall chufe to make ufe of his bare Ey, and naked 
Sights. That it is free for Mr. HooJ^ to make ufe of 
what Sights he pleafeth, (or none at alU and to Ob- 
ferve (if he can) to the nicenefs of a fingle Second (of 
which yet the Jtithor doth much doubt) and perfdrm 
Sixty times more accurately than Tycho , the Landt* 
grave ^ this Author^ or any other hitherto : but doth 
not own him, as his Prince or Dictator ; nor will fuf- 
fer himfelf, by his empty words to be perfwaded out 
