Selected quad for the lemma: end_n

Word A	Word B	Word C	Word D	Occurrence	Frequency Band	MI	MI Band	Prominent
end_n	low_a	part_n	upper_a	1,487	5	9.1326	5	false

Text snippets containing the quad

ID	Title	Author	Corrected Date of Publication (TCP Date of Publication)	STC	Words	Pages
A28965	Essays of the strange subtilty great efficacy determinate nature of effluviums. To which are annext New experiments to make fire and flame ponderable. : Together with A discovery of the perviousness of glass. : Also An essay, about the origine and virtue of gems. / By the Honourable Robert Boyle ... ; To which is added The prodromus to a dissertation concerning solids naturally contained within solids giving an account of the Earth, and its productions. By Nicholas Steno. ; Englished by H.O.; Essays of the strange subtilty, determinate nature, great efficacy of effluviums	Boyle, Robert, 1627-1691.	1673 (1673)	Wing B3952; ESTC R170743	92,523	306

from getting into the neck And at the end of this time he that held the Glass being tir'd and having his Hand almost scorch'd the Vial being remov'd from the fire was broken that we might take out the Metalline Lump which had a little darkish Calx here and there upon the upper surface but much more beneath where it had been contiguous to the bottom of the Glass then putting all this carefully freed from little fragments of broken Glass into the same Ballance with the self-same counterpoise I had us'd before I found according to my Expectation an increase of weight which amounted to eighteen Grains that the Tin had acquir'd by this Operation EXPER. II. This done we separated the Calx for fear of losing it and having melted the Metal in a Crucible that by pouring it out it might be reduc'd to thin Plates capable of being cut in pieces and put into such another Vial as the last we weigh'd it again together with the ●●tely reserv'd Calx but found that notwithstanding all our oare we had lost three Grains of the eighteen we had gain'd This done we put the Metal into another Vial. But in regard the neck was shorter than that of the former and could not like it be long held in ones Hand and because also I was willing to see what Interest the shaking of melted Tin has in the quickness of the Calcination the Glass which had a stopple of Paper put to it to keep out Smoak and Air was held at some distance from the Coals only whilst the Tin was melting and then was warily laid upon them and kept there for two hours at the end of which 't was again taken off and the Metal weigh'd with the same Counterpoise and Ballance as formerly and then it appear'd to amount to eight Ounces twenty-four Grains and to have much more separable Calx than at the first time Nor did I much wonder that the weight should be increas'd in this last Operation but nine Grains in two hours and in the former twice so many in half the time since during the two hours the Glass was kept in one posture whereas in the first Operation it was almost perpetually shaken all the while 't was kept in fusion And 't is observ'd that the agitation of melted Minerals will much promote the Effect of the Fire upon them and conduce to their Calcination EXPER. III. Though these Tryals might well satisfie a person not very scrupulous yet to convince even those that are so I undertook in spite of the difficulties of the Attempt to make the Experiment in Glasses Hermetically seal'd to prevent all suspition of any accession of Weight accruing to the Metal from any Smoak or Saline Particles getting in at the mouth of the Vessel And in prosecution of this design I thought upon a way of so Hermetically sealing a Retort that it might be expos'd to a naked fire without being either crackt or burst an Account of which Tryal was thus set down Eight Ounces of good Tin carefully weigh'd out was Hermetically seal'd up in a new small Retort with a long neck by which 't was held in ones Hand and warily approach'd to a kindled Charcoal-fire near which the Metal was kept in fusion being also ever now and then shaken for almost half an hour in which time it seem'd to have acquir'd on the surface such a dark colour as argued a beginning of Calcination and it both emitted Fumes that play'd up and down and also afforded two or three drops of Liquor in the neck of the Retort The Laborant being not able to hold the Glass any longer 't was laid on quick Coals where the Metal continued above a quarter of an hour longer in fusion but before the time was come that I intended to suffer it to cool in order to the removing it it suddenly broke in a great multitude of pieces and with a noise like the Report of a Gun but thanks be to God it did no harm neither to me nor others that were very near it In the neck we found some drops of a yellowish Liquor which a Virtuoso that tasted it affirm'd to be of an odious but peculiar Sapor and as for the Smell I found it to be very stinking and not unlike that of the distill'd Oyl of Fish But though our first Attempt of this kind had thus miscarried we were not thereby discourag'd but in prosecution of the same design made the ensuing Tryal EXPER. IV. The Tin which had been before in the first or some such Experiment partly calcin'd in a Glass being melted again in a Crucible that it might be reduc'd to pieces small enough to be put into another Glass was put again into the Scales and the surplusage being laid aside that there might remain just eight Ounces these were put into a Bolt-head of white Glass with a neck of about twenty Inches long which being Hermetically seal'd after the Glass had been a while kept over the fire lest that should break by the rarefaction of the Air the Metal was kept in fusion for an hour and a quarter as being hinder'd by a Company of strangers from being there my self the Laborant affirm'd Being unwilling to venture the Glass any longer it was taken from the fire and when 't was grown cold the seal'd end was broken off but before I would have the bottom cut out I observ'd that the upper surface of the Metal was very darkly colour'd and not at all smooth but much and very odly asperated and the lower part had between the bottom and the lower part of the Lump a pretty deal of loose dark-colour'd Calx though the neighbouring surface and some places of the Lump it self look'd by Candle-light it being then Night of a golden Colour The Lump and Calx together were weigh'd in the same Scales carefully and we found the weight to have increas'd twenty-three Grains and better though all the Calx we could easily separate being weigh'd by it self amounted not to four Scruples or eighty Grains For Confirmation of this Experiment I shall subjoyn another wherein but a quarter of so much Metal was employed with such success as the annexed Memorial declares EXPER. V. Two Ounces of filings of Tin were carefully weigh'd and put into a little Retort whose neck was afterwards drawn slenderly out into a very small Apex then the Glass was plac'd on kindled Coals which drove out fumes at the small orifice of the neck for a pretty while Afterwards the Glass being seal'd up at the Apex was kept in the fire above two hours and then being taken off was broken at the same Apex whereupon I heard the outward Fire rush in because when the Retort was seal'd the Air within it was highly rarified Then the body of the Glass being broken the Tin was taken out consisting of a Lump about which there appear'd some gray Calx and some very small globuls which seem'd to have been filings melted into that form The