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(Ld Brereton that mines did run indifferently euery way. of mireans book of the alps in High Dutch mr Haak VZ)
Rair weauer increased of Late. Roman pavement & coynes. a stagg at 21 foot vnder ground. at 3 foot
deep a Roman Causy. Sea in Lincolnsh: has left the shore. also at Exmouth. Parisian account of transfusion
mr. Hooke excused the want of Expts. this Day in regard he had spent great part of his time in
Examining an Instrument wherby to produce air out of water which did not proceed whereby he was
of opinion that little. air is made out of water but what may rush into the pipes together with it
as in the bellows at Fiall. mr Hooke was orderd to bring in a description of this Instrument and an account
of the Expts. in writing against next Day)(mr Hooke & mr Ball were desired to obserue the conuexity of
the Riuer in St Iames Park . and to giue an account thereof to the Society at their next meeting.
Iuly. 11. 1667. mr Hooke desiring to be excused for making the Expt of opening the thorax of
a Dog. Dr Ball & Dr King were desired to take care of it for the next meeting -
mr. Hooke hauing made this Expt. formerly was desired to giue some account of it who Rela
ted that he had cutt away all the Ribbs of the Dogg, taken out the Diaphragme left only the spine
and the great vessells and that blowing with a pair of bellows and a pipe thrust into the wind
pipe of the Dog, the heart continued beating & the Eyes very liuely for the space of 2 howres &
might haue lasted much longer, but vpon Ceasing the bellows, the heart would be convulsiue and
Dying which also would Recouer againe as soon as the motion was Renewed. And that he designed
this Expt. to vnderstand the nature of Respiration. (Sr P Neiles Story of a Deer. that had lost all its gutts
in the chase) mr Haak desired to translate mirians Booke of the Alps) mr Mercators obseruations of the Barometer
were brought in by mr Hooke being from Dec 6. to Iuly the 7. the paper was orderd to be entred.
(Bp of Exeter mentiond tht mr Mercator had aquainted him wth. his Theory of Longtitudes which did consist of 3 things
1 aequation of time. 2 Libration of instruments that noe motion may discompose them, and a defuse from the air, and to be per
formed wth. a pendulum clock.) mr Hooke reported that Dr. Croon had Recieued from mr Townly mr Gascoynes in
strument for measuring Diameters of the starrs with great exactnesse which instrument was afterwards shewn to
the society. with the modules of some others and the improuement of the first inuention. mr Hooke mentiond
that he had Inuented an instrument of this kind but vpon another principle which would perform the same thing
[In margin]VZ.   better with more certainty & more ease. He related also that he hath a theory which will solue all the vnequal
motions of the planets. this he was desired to shew the Society at their next meeting. the same brought
in the Rarifying engine fitted with an wooden vessell big enough for a man to sit in which was tryed
but not being extraordinary tight it was orderd to be fitted against next day. and to be experimented.
Expt. for next D. tht of Dog. Rarifying Engine. Conuexity of Canall. Ball magneticall expt.
Iuly. 18. (Dr. Kings opening the dog thorax faild) Iuly. 25. 1667. mr Ball prsented a book Historicall applications &
occasional meditations on seuerall subiects). mr. Hooke brough in mr Townlys instrument for measuring
Diameters to very minute parts. consisting of a Screw with Indexes &c he Reported that Dr. Croon has a descrip
tion and scheme of the Instrument from mr Townly himself, which was orderd to be brough in and enterd in
the Register. as also that the operator make one of the same kind to be kept in the Repository.
mr. Hooke produced also the Instrument of his own invention being of more plain and easy vse it consisting
of 2 threads and a Ruler whereby an inch is Diagonally diuided into 5000 parts and may wth. the same
ease be diuided into 40000 or more at pleasure wherevnto is to be fitted part of a tube whose Circle
is Diuided into 360 degrees and a thread passing through the Diameter, which will serue to find the true
position of any starr. Orderd that mr. Hooke doe bring in an account of his Instrument in writing
wth. a Scheme of it to be entred in the Register book, and that one of the instruments be likewise made
to be kept in the Repository. mr Hook mentiond that he had another invention of an Instrumt
to measure Diameters with great exactness which he promised to giue an account of at the next mee
=ing. Report being made that the great box fitted to the exhausting engine had not succeeded according
to Expectation the air as mr Hook supposed getting in at the brasse sucker, he told the company that he
had since fitted it wth. a wooder sucker instead of that which would be ready against the next meeting
(Dr. Wilkins said wood would not hold condensd air) Dr. King would couer it wth searcloth) mr Hooke replyed he thought he had
stopped all the passages ^ /of air/ wth cement so that it would now perform well, and if this should fair he thought there was
noe better way than to couer it wth Lead (Blunt thought that holland searcloth was better than Leather which if
well sised with glue. searcloth &c will shrink & brake. mr Henshaw inquired whether it were air or vapours
that entred vpon exhausting the box? to wch. mr Hook answerd that those times he sat in the box he found noe
other difference but what there was a little extraordinary heate. mr Hooke moued that seeing the cement
of the engine was subject to crack in the carriage from Gresham College to Arundell house wherby
it became defectiue, he moued that a comtee might be appointed to see some Expts. made wth it
at his Lodgings in Gresham Colledge & to Report the same to the Society. (Dr. Kings account of Anatom
expts. 7 in all orderd to be registred) Blunt about feeding fish) stone in carps head a tooth.) mr. Ball of Loadstone) Dr. wilk
tht Dr. Cotton has found a Rock of Loadstone and can furnish one of any bignesse) mr Henshaw mr Neile & mr Hooke
were desired to Ioyne wth mr Ball in making a catalogue of magneticall things necessary to be procured -
mr. Hooke moued to haue a Description of the place where the Loadstones were found to know how the
poles doe lye in the earth, whether parallel to the axis or after the manner of the dipping needle or parallel
to any meridian which may be known by taking the position of any one stone there. mr. Ball said the place
is 12 miles behither Plimmouth in the Road neer Darthmouth in a very high hill of neer a mile ascent the
water standing there is like that of Rusty Iron. Dr. Wilkins that the florentine stone had Lost of its vertue by a
wrong position) mr Hook is of opinion that those mines & metalls were at first thrown vp by Earthquaks

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