"where they admit of no disturbance on the most important occafions whatso

66 ever.

66

13. Coffee is obferved to work little effect, efpecially in thofe, that ufe it moft; "and yet because most Turks die with a pain in the ftomach, many physicians "attribute it to their excefs in coffee, which drank in great quantity fouls and "bakes in the pit or pylorus of the stomach. Often bathing makes both men and "women to decay betimes. Shaving the head doth doubtless much refresh thofe, "who use it: fo that the Turks have no fooner the least heaviness, or ach in "their heads, but they have recourse speedily to their barber for the cure.

14. I fhall ferve you what is poffible in the information of works of antiquity "in thefe parts; but they are fo hardly found, being ftudiously deftroyed by the "Turks, in moft places, where I come, nothing but confufed ruins appearing; "antient infcriptions, that I have found in Greek, engraved in ftones, being as it "were purposely beaten out with hammers, and placed in walls of new building "with the letters fubverted; fo that I fear I fhall be able to render you but a "lame account from hence in thofe particulars. Howfoever what occurs in my 66 journey to the churches of Afia, worth your notice, I fhall faithfully transmit to you after my return. The aqueducts near Conftantinople, built by Solyman "the Magnificent, I have often feen, and reviewed with great fatisfaction, being "the most stately of that kind I ever faw in any part of the world, though the "measure of them, I muft confefs, I never was fo curious as to take, and being "at this distance now from thence, I conceive, that I fhall never again have the "opportunity to do it.

"The bearer hereof Signor PIETRO CESI, a perfon, who hath been a great tra"veller, and rarely well verfed in the Arabick and Turkish languages, I earneft"ly recommend to you; and that in regard his misfortunes have driven him to "feek his bread in England, you would be pleased to afford him all civil courte"fies, which you efteem due to a ftranger and an ingenious perfon. And fo, "Sir, wishing you all happiness I remain,

Smyrna,

November 23, 1667.

"SIR,

"Your most affured humble Servant,

"PAUL RYCAUT."

Upon occafion of the account given in this letter of the way used in Turky of dreffing leather with acorns, Mr. HOOKE was ordered to fuggeft the like trial to be made with the English acorns by the tanners of London.

The perfon, who brought this letter, called Signor PIETRO CESI, born in Perfia of Italian parents, being introduced into the fociety received their thanks for his care of the faid letter, as alfo for the prefent of feveral curiofities of his own to the number of thirty fix.

Mr.

Mr. Hooke produced again the large conical tin-receiver for the magnifying of founds; which being tried was found to make words foftly uttered at a distance to be heard distinctly; whereas they could not be fo heard without this instrument.

He produced a mufcle, to fhew how it confifts of mere fibres or ftrings lying cofe togther, longwife, like the fibres of talc.

The experiments appointed for the next meeting were the fame, which should have been made at this, but were not.

The prefident moved, that for the more effectual getting in of the weekly contributions, letters might be written to all thofe, who were in arrears, not of the nobility, defiring them to attend the council at certain days to be nominated, and then to declare their refolutions concerning the payment of fuch

arrears.

It was ordered hereupon, that Mr. OLDENBURG draw up a form of fuck letters against the next council.

It was refolved, that the prefident, the lord BERKLEY, the lord bishop of SALISBURY, HENRY HOWARD of NORFOLK, and Dr. WILKINS be defired to take all opportunities of foliciting fubfcriptions of the lords for building the college; and that the prefident do give notice the night before to the rest of this committee, when his lordship can attend that business.

It being fuggefted, that LEWIS DU MOULIN, M. D. was willing to translate The Hiftory of the Royal Society into Latin, and that it was neceffary to haften this tranflation, for fear it fhould be done in Holland, to the prejudice of the author; it was ordered, that Mr. OLDENBURG fhould be defired to fpeak to Mr. MARTYN, the fociety's printer, and to let him know, that the council approved of the faid Dr. DU MOULIN, and that he, Mr. MARTYN, fhould do well to agree with the doctor about the recompence for his pains, and to pay the fame.

April 23. ROBERT earl of AYLESBURY was propofed by Mr. OLDENBURG and

elected.

Sir ERASMUS HARBY was elected.

THOMAS FLATMAN, efq; was propofed candidate by Mr. AUBREY.

The experiment to fhew, that two metalline bodies weigh more in water, when mixed, than when weighed both together apart, was deferred, by reason that the beam of the balance was not well adjusted, nor a fet of weights, accurately divided, ready; which were ordered to be provided against the next meeting.

Dr. HOLDER brought in an account of an experiment made by himself con cerning a caufe of deafnefs from the want of a due tenfion of the tympanum of the ear; which was read, and ordered to be registered *.

Mr. OLDENBURG produced a letter written to him by Dr. WALTER NEEDHAM, dated March 10, 166, containing fome animadverfions upon Mr. HOOKE's deductions from the experiment formerly made by him of preferving animals alive by blowing through their lungs with bellows: which letter was read, and ordered to be entered in the Letter-Book, and fent to Mr. HOOKE to confider it; and it was ordered, that Dr. LowER fhould be defired to make the experiment mentioned in that letter relating to the matter in debate, and Dr. KING to affift in it.

This gave occafion to discourse of refpiration; whereupon Mr. DANIEL COXE fuggefted, that it was proper to examine and feparate the parts of the air, in order to know what there may be in it, that may make it fo`neceffary for refpiration. He being asked, whether himself had not done fomething in this particular, anfwered in the affirmative; and being defired to communicate it to the fociety, promised to do so, when he should have proceeded fomewhat farther therein, and brought it to more maturity.

Mr. AUBREY produced fome mineral water from Milfom in Wiltshire, about 80 miles from London, which yet kept its strength fo well, that when a little duft of galls was poured on it, and stirred with it, it was presently tinged into a dark red colour. The bottles containing this water were delivered to Dr. MERRET to

examine it.

Mr. EVELYN prefented a small box of fhells found at the bottom of a chalkpit about fifty feet deep near Brockley in Kent.

Mr. OLDENBURG produced feveral curiofities delivered to him from Signor PIETRO CESI, among which were fome exotic feeds, and particularly of that papaver, whence opium is made. It was ordered, that fome of each fort of these feeds fhould be delivered to Mr. CHARLES HOWARD, and that he be defired to make fuch trials with them, as he fhould think fit, and to give the fociety an account of the fuccefs; and that the reft of the feeds, together with the other particulars (being thirty two in number, according to the lift delivered with them) be committed to Mr. HOOKE for the repofitory.

* Register, vol. iii. p. 301. It is printed in the Philof. Tranfact. vol. iii, no 35. p. 665. for May 1668. y Vol. ii. P. 166.

The

The experiments appointed for the next meeting were the two above-mentioned, viz. of the weighing of metalline bodies, and of making Dr. NEEDHAM's experiment mentioned in his letter.

It was ordered, that fuch of the fellows, as fhall not pay their arrears due to the society within one month after the demand thereof, fhall be ejected, according to ftatute:

That there shall be no standing salary allowed to either of the secretaries :

That a present be made to Mr. OLDENBURG of fifty pounds: and

That Mr. COLLINS be defired to affift in making a catalogue of the Arundelian library forthwith.

April 30. At a meeting of the SOCIETY,

Mr. FLATMAN was elected.

BENJAMIN WOODROFFE, M. A. was propofed candidate by Mr. BoYLE.

Mr. AUBREY acquainted the fociety with an obfervation made by him April 27, 1668, bor. 10. of a nubecula between cancer and caput hydræ; and he was defired to continue to obferve this phænomenon, as he had opportunity; and the fcheme of it brought in by him was ordered to be registered.

Mr. BOYLE being defired by the prefident to acquaint the fociety with fome of the particulars, which he had entertained himself with during his late abfence, mentioned, that he had, among other things, employed himfelf in the profecution of the experiments concerning air, which perhaps he might be induced to publifh, when finished, as an appendix to his former book upon that fubject. And being requested to declare what heads of that argument he had chiefly pursued with experiments, he named these following; viz.

1. Experiments about different liquors, that contain air.

2. About the proportion of air latitant in water and other liquors. VOL. II.

N n

3. About

3. About the effect of the abfence of air in foft bodies.

4. About the effect of the abfence of air upon living creatures.

5. About the generating de novo or extricating of air.

6. About the ways of examining, whether the substance thus generated or extricated be true air or not.

He being defired to communicate fome of thefe experiments to the fociety, to be tried before them, promised to do fo, and to produce fome of his papers containing them at the next meeting; against which time Mr. Hook E was appointed to caufe the rarefying-engine to be made ready, that then it might be produced, if there were occafion to make any of thofe experiments therein; as alfo to provide fome vipers for that time.

Mr. HOOKE read his anfwer to Dr. WALTER NEEDHAM's letter concerning the experiment of preferving a dog alive by the wind of bellows, and by keeping the lungs diftended with fresh air, though not moved. It was ordered, that the experiment mentioned by the doctor feeming to him to difprove the confequence deduced by Mr. HOOKE from his experiment, fhould be made at the next meeting, the curators and Dr. KING, appointed at the last meeting to make it at this, being abfent; and that the operator fhould again fpeak to Dr. LowER and Dr. KING to take care of the experiment at that time.

Mr. HookE propofed an experiment, to fee, whether the blood circulates, when the lungs are fubfided. He was defired to make it before the fociety.

He remarked, that it had been obferved, that blood, though of a dark blackish colour, would, when expofed to the air, become prefently very florid, and that florid furface being taken off, and the fubjacent part expofed again, would acquire the like floridnefs; and that therefore it might be worth the obferving by experiment, whether the blood, when from the right ventricle of the heart it paffes into the left, coming out of the lungs, it hath not that tincture of floridnefs, before it enters into the great artery; which if it fhould have, it would be an argument, that fome mixture of air with the blood in the lungs might give that floridnefs.

Sir ROBERT HENSHAW prefented by the hands of Mr. HENSHAW an East Indian ferpentine-stone, called pietra de covre.

Sir THEODORE DE VAUX Communicated a letter of Mr. JOSEPH WALSH, dated April 26, 1668, giving an account of a cinereous fubftance found at KenchefterWalls, anciently a Roman ftation, called Ariconium, in Herefordshire: which letter was ordered to be inferted in the Letter-Book, and Sir THEODORE defired to procure fome of thofe cinders.

It does not appear in that book.

The