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they might be tryd once more. mr Hook was desired to prouide against next day as good sphe
ricall glasses as he could both for telescope Reading & Procuring glasse which he vndertook.
the nice wind contracting vessel wth improuement produced it appeard sensible of the least wind
made neer it, it was orderd a Description of it wth a scheam should be made & registred
mr Hook suggested that such a vessell as this might by some variation be turned into
a good Otacousticon he was desired to prepare such a one against the next Day.
March. 12. 1667/8/ mr. smethwicks glasses were tryed againe and his telescope compared with
an other Longer telescope and the Obiect glasses exchanged, it was still bound to exceed the other in goodnesse
and his burning concaue being compared with a sphericall burning glasse of almost twice the diameter and
held to the fire it Burnt gloues whereas the other sphericall ones would not burn at all. the authour
was againe encouragd by the Society to proceed with in this inuention with all vigour possible and because
It was noe cleer Sky at this time, it was desired that the telescope might be produced once more on their
day next. Mr. Hooke made a proposition of a new way of his for grinding optick glasses which he
was desired to giue in Writing (Sr. R Southwell. tht he had lodged the quadrant wth a body of men at Lisbon
that addicted themselues to mathematicks. amongst the rest D: antonio aluarez da Cunha. who was now elected)-
Falconierj & magalottj presented Saggj di naturalj]) the tying the Arterys of a dog againe tryd vnsuccessfully. -
The Curator brough in a Description of the wind gathering Engine but took it home againe promising to
returne it at next meeting (Sr Th: Devaux . from walsh. of a rock in England whereon were found mosse ferne sticks
wood blackberrys & Rasberry all petrifyed). weighing of mixt metalls to be prosecuted next Day.
March. 19. Some Account was giuen by Dr. Pope & mr. Hooke of the booke of florentine Expts. which was
that the many subiects & Expts. treated at therein, had also been considerd & tryed here in England and euen
improued beyond the contacts of that booke, yet that they were here deliuerd wth. much accuratenesse & polite
nesse and some of them wth. an acknowledgment of the origine whence they were deriud (mr. boyle to be
consulted about Expt. of organ pipe.) Dr. Pope that there was found tht sound moued equally swift wth. & against the
wind vizt an Italian mile in 5 second, but not soe strongly) that mr Rook had found it moue 5 miles in 20 seconds
Dr. pope account of Oxford Boy.) Mr Gregorys book. vera circulj & hyperbolae quadratura. Deliuerd to mr Hooke.
There was Read a Description of an Instrument for Collecting the wind, or for making the slower motions of
the air more sensible contriued by mr. Hooke it was orderd to be registred. It being mentiond in this Descrip
tion that by a somewt Like contriuance there might be made an Instrument for collecting the sounds dispersed
in the air, into one small pipe to be applyed to the ear. to some for an otacousticon. It was orderd tht
mr Hooke should cause a great glasse receiuer to be made for that purpose - The Curator producd his
newly contriued cyder pressing engine which being tryed but not found to goe close enough for expressing
out all the Iuice of the apple at once, It was orderd that It should be made to goe closer against next day
The businesse of improuing optick glasses being againe spoken of mr Hook said that mr Cox had affirmed
to him that he would make a sphericall glasse of the same power with those of mr Smethwick declared to
be not sphericall which should perform the same effects of taking in as great an angle and Represent
ing the object as distinctly and truly as mr. Smethwicks glasses. It was orderd that mr Cox should be desired
by mr Hooke to make good his affirmation (Dr. King made stenos expt. wthout successe) Anatomical tract of
De graeff & van horne of Leyden about the parts of generation. as tht the testes are strings & of femalls; ouarys. Sr. G Ent
to pervse them). The Curator produced a lamp furnace for hatching eggs in it It was orderd that the
Expt. should be tryed wthout delay. Oldenb: Letter to Gr: Duke. Expt. for ND. a glasse Receiuer to increase the sound
for hearing. 2 weighing mettalline bodys -
March. 26. 1668. The squaring the Hyperbola by Ld Brouncker.) Dr. Allen Sr. Th: Adams Stone. weighd 22 3/8 troy.
a toad found in a tree. Letter of Dr. Iames about diseasd boy. correspondence ouer the world by mr Hay at Rome. Expts. about sound to be
tryed between Deale & douer) Mr. Hooke gaue a hint of making such glasses whereby one might see and read
in the Dark. He was desired to think further of it and to make some tryalls accordingly -
Aprill 2. 1668. Dr. Kings account of tying artery of a dog) the curator produced a glasse Recieuer for the improue
ment of hearing. being tryd by holding the neck of it to the eare it was found that a stronger sound was con
ueyed by it then would haue been wthout it Orderd that the next day there be brought in a better & larger
Receiuer for hearing. The same mentiond that there was a person who did offer his seruice to the Society for Diuing
the offer was Imbraced and the Curator orderd to consider against next day of the Apparatus fit for it and of the
Expts. to be made by it (Slusius his Letter of March 29. 1668. a generall Descript: of the Country about Leige) Sr. A King
Relation about Amphisbena) Taylor Amber & petrifyd wood from Harwich) wallis Letter about tides)
Apr: 9. 1668. The Curator produced 2 Receiuers whereof one was of Latton and of a Conicall figure the -
other of Glasse and Round both sharp at one end. bein applyed to the ear the former was Iudged best for
the Increasing of sounds. It was orderd that the Curator should take them home and try them further by himself
and particularly in the silent Night Season, and to bring in an account of their effects. (2 boxes of Padoua seeds
from Mr Howard) Da Cunha's Letter) the great Nautilus stone by mr Howard) Sr T de Vaux some petrifactions) Dr Charlton. Citta and
Phoenicuras) Philips's paper of tides.) The Curator being called vpon to declare what apparatus he had ready thought
of for the Expt. of Diuing to be tryd by the vrinator that offers himself for it, said that there were made formerly diuing
Boxes which he would put in order, and that the Expt. necessary to be made first of all for the purpose was to try
which way the Diuer could continue a good while vnder water soe as to work there freely which being
once contriued soe as to succeed, there would then offer it self a great number of Experiments to be made
vnder water. (Dr Clarks paper about making Alum

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