100

(Sheers by S I Williamson. Mapletoft by Hooke Travaginj by Oldenb: proposed Candidates. Newtons Expt. tryd wth Successe. Flamsteds
(Letter from Greenwich of Eclipse of Dec 24 obserud. to be sent to Cassinj. Auburys Obsers made in Surry.
(Ian. 13. 1676.). Ian. 20. 1676. More of Newtons papers about light read. also newtons Letter to
[In margin]138   oldenburg Dec. 21. 74. stating the Difference between his hypothesis and that of Mr Hooke in his Micrography. the
Result of which is that he (newton) hath nothing Comon with Mr. Hooke, but the supposition that the other is a
medium susceptible of vibrations of which supposition Mr Newton sayth that he makes a very different vse
Mr. Hooke supposing a light it self which he supposes it is not. Besides that he (Mr Newton) explaines very
differingly from Mr. Hooke the manner of Refraction & Reflection & the nature & production of Colours
in all cases, and euen in the colours of thin transparent substances, mr Newton sayth that he Explaines euery
thing after a way soe differing from mr Hooke, that the Experiments he ground his Discourse vpon, de
stroy all that mr Hooke has sayd vpon them. And that the two main Expts. without which the manner
of . . production of those colours is not to be found out, were not only vnknown to mr Hooke when he wrote
his micrography but euen Last spring; as he vnderstood by mentioning them to the said mr Hooke
[                ]
[In margin]139.   Ian. 27. Prince Ruperts pictures on Marble Staind. --- mr Hooke said that he conceiued there were but two colours
in this peice. And that he had a way of Doing it with most colours & to paint with them vpon marble almost as curiously as
with a pencill. [newtons Letter of Ian. 25. that he is writing about colours of prisme. [pascalls letter abt. mendip Lead mines. Sul-
pher wall, petrifying spring subtarraneous waters &c
[In margin]140   Feb. 3. Wallis s archimed treasures. newtons papers read. -- which done occasion was taken to discourse of mr Newtons Theo
ry it self & to Debate whether the rays of light which though alike incident in the same medium yet exhibit different colours may not
reasonably be said to owe that exhibition of different colours to the seuerall degrees of the velocity of pulses, rather than as M New
ton esteems to the seuerall convete degrees of refrangibility in the rayes themselves. Mr Hooke was of opinion that the former
of these ways, was sufficient to giue a good account of the Diuersity of colours.
[In margin]141.   Feb: 10. Birchenshaws scale of musick. [Last part of Newtons paper read. --
[In margin]144.   Feb. 17. papins paper about the lungs of animalls read & Expts orderd.
Feb. 24. some of those Expts. tryd [Bartholines Letter with answers to querys from Island
[In margin]146   March. 2. croon trys some expt about the Lungs. -- mr Hooke mentiond that there had been lately with him a person
who had started to him some new notions concerning the Loadstone vizt. that the motions of it would vary & change for
otherwise then hitherto had been taken notice of, soe as that the variation of it would be for a quarter of a yeare
to the East & the next quarter to the west of the north. & particularly that the 2y. of February last it would be
4 degrees to the Eastward (nonsense) He added that he intended to obserue it having already made a meridian
for that purpose & to giue the Society an account of the Result of his observations. [oldenb moued to haue newton
Expt. tryd -- Mr Hooke said he had an apparatus Ready to make the Expt. when the Society should call for it -
[In margin]148.   Mar. 9. an Expt. of mr Boyle tryd. Sr. Phil. Skippos relation of Virginia.
[In margin]149.   Mar. 16. Fran Vernons Letter from Smyrna. Guillieteire a sham. Exhausted & vnexhausted Spt. of wine to be each made
a seald thermometer. to see the Different working. Mar. 23 & March 30. noe meet
[In margin]150   Ap. 6. Swamerdams vterus . . . . [these were deliuerd in the box to Mr Shortgraue for the Repository.] these words
are written in another hand than the rest of the book.
Heuelius his Letter complaining of Mr Hookes animaduersions. --- There was appointed a comitte to try M Newtons Expt
controuerted by Linus vizt. S I. More D Crone M Hill D Grew. M Hooke & this tryall of air it hath been made by those Gentlem
to be made before the society (Oldenb & grew complott)
[In margin]151   Apr. 13 Grew on Expts. about mixture. - Apr. 20. noe sitting
[In margin]152   Ap. 27. Newtons Expt. about Linus tryd. Crone giues account of Expt. of exhausted spt. of wine. mentions Zulichems Expt of
exhausted water running in a syphon &c the and zulichems saying that there is besides the air a pressing matter more subtle
than the air] mr Hooke herevpon affirmd that he could doe the same with quicksiluer. & make it run out of a
syphon after the air was well exhausted. The President desird to see tht Expt. [Ioly of Dijonstus mechanick tract.
the bitch without a spleen dead -
[In margin]155.   May. 4. ascentio Day noe meeting. May. 11 Dr Cole shewd Expt. about spirall fibers of gutts -
May. 18. Grew about calculj from animall bodys. [Beal abt shining flesh & Baroscope. Leibnitz. & coles papers
Aubery from Sr Franc Reddj a list of MSS. formerly Mr Fosters. Vz.
[In margin]159   Iune. 1. Smethwick obserud Eclipse iunij. 1. mitium 7. 90 / finis - 9. 54 3/4 post media noctum. Iun. 1. 1676 duratio solus 2.4 9/4
sooner by 1/4 begun & ended 1/8 sooner than by flamsteds royall almanack. [one Bowlands obseruations about tides at
tangier. [about thunder struck compasse [grew about spt of niter & oyle of vitriol working on bodys
[In margin]160   Iune 8. lucas (sucessor of Linus) his Letter about Newtons Expts. Bouchers letter about Iamaica ^ /Hally first noticed/ Colsons obseruation
of the late Eclipse . much the same with smethwicks-
[In margin]162   Iune. 15. Newton letter answer to Lucas & Leibnitz
[In margin]163.   Oct. 26. Grew discourse of anatomy of Roots. [Boyles book of the origin of qualitys.
Nou. 2. Hodgsons Letter abt burning colemine. --- mr Hooke spoke of a new sanctiue Spring Lately found
in Stafford shire healing Divers diseases as the Dropsy Scurvy &c adding that a book was printed of it.
Sr. R Southwell a paper of Golden Sand from Conimbra. [A sham story of corrupted Ray fro France
[In margin]165.   Nou. 9. tangier wheat grown here. [grew read of Flowers. He had the appause (Vz) of the company &c
Silas Taylors amber orderd to be put into the Repository. for which purpose it was Deliuerd to Mr Hunt now
keeper of the same. -
[In margin]166.   Nov. 16. Mr Beaumont letter abt. Rock plants. [Listers letter about vegetable black gum. [Cassinj letter from
Paris about Richer at Cayenne. &c.
[In margin]167.   Nou. 23. Relations of thunder & stormes from france. and of a fiery meter from Italy
[In margin]168.   Nov. 30. Election of Officers made -
[In margin]170.   Dec. 7. Mr Hooke shewed some magneticall Expts. importing [the dog has entred nothing but Left a blank]
order that these Expts. be prosecuted and the Comtee formerly appointed to take care of the Repository be desired to
haue a good Inclinatory needle made and suspended in the Societys Repository, to see what change there will
be in tract of time. as also to obserue whether this Dipping needle answers to the Latitude from the pole
(coxcomb) of the world. - 4 coppys of Letis Italia Regnante.
[In margin]172.   Decemb. 14. Mr. Hooke vpo the Accounts of Mr Secretary Williamson being present, Repeated his suggestions made the Last
Day concerning the Dipping needle. vizt. that tis very difficult to find what the Inclination of the needle should be & then
being noe certain way of knowing the needles inclination, there could be noe certainty of knowing the Longitude thereby.
He sayd that according as the Needells are longer or shorter they haue different Inclinations, and that we know not what Dis-
-tance the Dipp needle must haue from the Magnet for such or such Latitude. Headed that if we haue but the true variation of 2 places
whose long: are exactly known. tht will Giue the Magnetick pole, and then if the Variation be true, & the pole Given. we then

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