M""- Hook'j- Anjh?er to Monfieur Auzout / 
Confideratiom^ in a Letter to the Tublijher. 
of thefe TranfaSiions. 
Together with my moft hearty thanks for the favour you 
werepleafed todo me, in fending me an Epitome of what had 
becni>y the ingenious Mon^itut An^^eut animadverted on a de- 
fcription, I had madt; of an Engint for grinding fpherical GlaJJes^ 
I thought my felf obliged, both for your fatisfadlion, and my 
own Vjndication,to return you my prcfent thoughts upon thofe 
Obje<aions. The chi^f of which feems to be againft the very 
^ropofition it felf: For it appears, that the ObjeUor is fomewhat 
mnfatisfied, that I fbould propound a thinginTA^^^ry, without 
ha\ringfirft tried the Prafficabtenef of it. But firft^ I could wifh 
tliat this worthy Perfon had redlificd my miftakcs, notby fpe- 
culatioDj but by experiments. Next, I have this to aufwcr^that 
(though I did not tell the J^eader {o much, to the end that he 
might have the more freedom to examine and judg of the con- 
trivance, yet) it w^s not meerTi^ory I propouiided^ but foiie- 
whsLt ci jfii/iory and mutter of Fa8 : For, I had made trials, as 
many as my leifure would permit, not without fome good fuc-^. 
cefs ^but not ha ving time and opportunity enough to profecute 
them,! thought itwould not be unacceptable to fuch,as enjoyed 
both, to have a defcription of a way altogether Nm?, and Ceo^ 
mHrienUj-tmt, and feemingly, not unpradticable^ whereof they 
might make ufe^or not, as they Ihould fee reafon. But nothing 
furprifed me fomuch, as, that he is pleafed (after he hadde- 
clared it a fault,to write this T^^ory, without having reduced it to 
prad:iee)to lay it,as he feems to do,in one place of his book,/?. 2 s 
upon the T{oyal Society. Truly, Sir^ I fliould think my felf moft 
injurious to ihut Noble Company, had I not endeavoured, even in 
the beginning of my Book, to prevent fuch a mifconflrudlion. 
And therefore I cannot but make this interpretation of what 
MQnlieur>/»;^<?«^ faith in this particular^that either he had notfo 
much 
