^ ( 556) 
^dnA, Mr. Boyle difccverd a^dpidlijhed the ufecf the Barofcope, 
remark the V0eigbt of thehimo^phxrt and the changes of that r^eight 
in his firjl tredtife of Pneumaticdls an. r 6^4)5 th^t the Mercury af 
cended in England to'^o inches, and above \ , Exper, 1 7'^ ; that tt 
changed within five rveeks tofallti^o inches^Exp- 1 %^^\ahdthe changes^ 
in reference to heat^ cold^ wind, weather , and other alterations of the 
air^ or whatever fecret crrcumjlances^ have been remarked at London, 
Oxford, far in the Wed and other parts 0/ England ^ thefe jc years 
and vptvards. the Weel- Barometer perfe^ed,^m\ 13. Another Sta- 
tical Barofcope accuratly devifed, N. 14. Jnd many other Infiru- 
ments coni rived and Materials prepared^ which may make a deeper 
andclofer difcovery of the nature of a Place ^ than hath formerly 
been obfrv d. Am bejides what is done as proper for this IJland, there 
was begun by Dr, Ger. Boate,^W fuhli(ht an. r ^ 52. Ireland*s Nattu- 
ral Hiftory , which if the Author had lived to finifh 5 had been much 
fuller 5 and 'tis hoped that others will foongive it a larger meafure of 
perfection. So that ^ though we are in this 'addrejs Jomewhat tardy^ 
■ yet, I think ^we are not much behind our neighbours. Andfome have alfa 
made confiderable refearches which extend far beyond thefe our Cli* 
mats. But I mujl forbear. If I am prolix here^ it may be conftdered^ 
that this is^ a pregnant part of our main bufinefs in Phyfiology ; and it 
mij be interpreted for a good proof of no monopolizing envy of us ^ in 
that we are willing to provoke our Neighbors to excel us in things that 
are truly good and excellent, 
J particular Anfwer of Mr, Ifaak Newton to Mr. Linus bis Letter,^ 
printed in Numb. 121. p.499. about an Experiment relating to the 
New Do^rine of Light and Colours: This Jnfwer fentfrom Cam* 
bridge in a Letter to the Publifher Febr. 2 9» i 6 7|- . 
Sir ^ 
BY reading Mr, Linux's Letter when you Chew'd it to me at Lon^ 
don,\ retained only a general reiDembrance,rhat Mr, Linu^de- 
ny'd whati affirmed^and fj could lately fay nothing in particular to 
it; but having the opportunity to read it again in A^/^w^. i2r. of 
the TranfaHions, I perceive he would perfwade you, that the in- 
formation you gave him about the Experiment is as inconfiftent 
with my printed Letters as with experience ; and therefore, left 
any who have not read thofe Letters fliould take my filence in this 
point for an acknowledgment , I thought it not amife, to fend you 
r^mething io anfwer to this alfo. 
He 
