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Sep. 23. 1663. The President gaue an account of the expt. committed to his charge
about the Descending of water purged from air proposed formerly by mor huygens and seue
rall times tryd before the society which he affirmed to hold good vpon a very accurate try
all euen with the addition of a Sucker. he was desired to prosecute the expt. with quicksiluer
and to bring in the particulars of the whole successe in writing together wth. the solution of
the phaenomenon.
Dr. wilkins mentiond a person that had considerable collections of Obseruns of weather made
by Dr Dee & others. he was desired to make the person acquainted wth mr Hooke.
Sep 30. - and some of the silk [presented by mr wintrop] was giuen to mr Hooke
to Looke vpon it wth the microscope.
mr Hook brough in the new ways he hath contriued for sounding the Depth of the sea with
out a Line and fetching vp water from any Depth which was orderd to be entred. lib. 2 fol 301.
The same produced 3 microscopicall Obseruations. 1 of the scales of a Soles Skin presented by mr
Pell. 2 of a peice of tabby. 3 of the beard of a wild oate.
The same was orderd to speak wth mr childrey concerning his Collection of Obseruations
of the weather and to make a Report of it to the society, As also to try whether he would
grant the Pervsall of them for the seruice of the society. [Bonds variatio 1o. 4' westward]

Octob: 7. 1663. there was put a mouse into the Compressing engine & though 4 times as much air
was forced into it as was in it yet the animall appeard not to haue receiue any alteration thereby
my Ld Brounker acquainted the Company wth. the successe of monr. Zulichems Expt. made by him
wth. mercury. vizt that vpon the exhausting of the air the quicksiluer had stood 34 inches high
and that he had obserued that it neuer fell but when a bubble broke, and that when it fell
and broke it fell at once soe low as it would fall by three suctions vpon which he was of
opinion that noe account could be giuen of this phaenomenon from the equiponderancy
of the air, and consequently the standerd of the mercury being about 29 inches the
rest must be from some other cause.
mr Boyle did second this Relation affirming to haue made the like expt. and found the
quicksiluer to stand at aboue 50 inches and acknowledging that something Els must
be taken in to explicate this odde phaenomenon. my Ld Bro: & mr Boyle were both
Desired to prosecute and consider further this expt. and to giue both the matter of fact
and their thoughts of the cause thereof in writing.
mr. Hookes paper concerning the Obseruables for the making a history of the weather
was Read and orderd to be received by the President & sr. R moray. and then to be
registred and sent to the seuerall persons that haue been engaged in this work of Ob
seruing the changes of weather as Dr. Power mr Beale &c.
mr. Hooke was orderd to bring in against next Day a hygroscope made of the beard of
a wild oate with an index. [Dr Goddards Gutt string][Dr. Godd. obser of standerd. not heat or cold Dry wett
but thick & cleer air made low or high stand.]
Oct. 14. The Expt of making the stand aboue its vsuall station was further inquired
into &. mr Boyle affirmed that to haue tryed it againe and kept it suspended to
the height of 52 inches wth. water. it was againe Recommended to his further
prosecution.
Dr. crone & mr Hook hauing not yet met to cut a peice of a Doggs skin and sow it on
againe to see whether it will grow & Dr. charlton affirming to haue tryed this Expt
formerly he was desired to meet on fryday next with the other curators at Gresham Coll
and there to make the Expt. together.
mr Hook was desired to Lodg some Dayes in Gresham Colledge for the well fitting the
compressing engine and the giuing order to the operator for the making the Engine
Described by him to determine the force of powder by weight as also for the artificiall
eye and the perfecting Dr. wrens new kind of thermometer wth. 2 round glasses
& quicksiluer in them.
mr Hook brough in 2 microscop: Obs one of a common fly the other of mosse grown
vpon a brick together wth. the seed. -
Octob: 21 [Sr. R moray Gaue account of the tryall of 2 pend clocks by maj Homes in the streight.]
The operator produced the Dog a peice of whose skin had been cut off & sowed on againe
and he Related as soon as the skin was cutt off it shrunk into half its Dimensions soe
that they could not stretch it out soe farr as to couer the whole flesh with it as it
had done before but yet it looked as if it would grow on againe. the whole processe
was orderd to be giuen in writing by mr Hooke

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