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Word A	Word B	Word C	Word D	Occurrence	Frequency Band	MI	MI Band	Prominent
rest_n	work_n	work_v	wrought_v	214	4	8.1373	4	false

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ID	Title	Author	Corrected Date of Publication (TCP Date of Publication)	STC	Words	Pages
A28938	The aerial noctiluca, or, Some new phœnomena, and a process of a factitious self-shining substance imparted in a letter to a friend living in the country / by the honourable Robert Boyle ...	Boyle, Robert, 1627-1691.	1680 (1680)	Wing B3925; ESTC R22714	34,311	115

as well as true light The slowness of their descent in Lines many of them very oblique made this pleasant sight last the longer and having more than once reiterated the Experiment though not still with equal success it afforded me some varied Phoenomena which I shall now forbear to mention both because I want time to write and am weary of writing as I fear you may be of reading And therefore I shall here conclude your trouble and my own as soon as I shall have added the two following Particulars Observ XV. THE first whereof is this That having in such a Bolt-Glass as has been lately described given purposely and heedfully a certain kind of strong shake to the included Liquor when 't was at a due degree of heat which was not intense I observed That on one side of the Globous part of the Glass and above the Body of the Liquor there was generated as it were a great spark of lucid matter about the bigness of a Pins head and yet hence as I expected there quickly was a flame or light diffused through the capacity of the Globe where it soon after vanished From which Phoenomenon and some others of affinity to it whether it may be argued That this was a true flame which from a very small beginning was increased by Propagation and kindled the disposed Exhalations that it found dispersed throughout the Cavity of the Glass or That the motion of all light is not necessarily instantaneous since the progress of it even in so small a space as our Glass comprized was discernable I have not now the leisure to debate but must hasten to the last of the two promised Particulars which is Observ XVI THat not here to mention how I have preserv'd a distill'd luciferous matter both with and without additaments in a consistent form to try how long I could preserve our Liquor in a capacity to exhibit such pleasing Phoenomena without giving it new Air from time to time but only by keeping in the spirituous parts I caus'd the Stem to be Hermetically seal'd presuming that notwithstanding this I could by a certain cautious way of holding the Vessel safely bring the included Liquor to an heat sufficiently intense to afford us the Phoenomena of light In which Supposition I was not mistaken since the last recited Phoenomenon besides some others were made in this Hermetically seal'd Vessel in which the contain'd Liquor does as I this night try'd continue fit for that purpose OF THE Way of preparing THE AERIAL NOCTILUCA THE several Phoenomena of our Aerial Phosphorus or Noctiluca wherewith you have hitherto been entertain'd have I doubt not raised in you a pressing curiosity to know of what matter this self-shining substance was made and how that matter was prepar'd to be capable of affording it Though two or three years are now past since I caus'd to be made more than once in my Furnaces a Phosphorus not unlike that of the learned Balduinus I speak thus cautiously because I am not sure what particular matter He employs and I have brought more than one sort of Mineral Bodies to shine yet I forbore to divulge what I knew because as I declar'd to some curious Men that press'd me to do it I was willing to leave him the liberty of publishing his invention But finding he has not yet thought fit to impart it to the World there appear'd the less cause to expect that the secret of the Noctiluca which is a much more valuable thing would be suddenly made publick And therefore without long waiting any man's leisure I resolv'd to impart to the Curious and particularly Sir to your self the knowledge of the matter I wrought upon and some directions how to manage it And in pursuit of that resolution I am willing to gratifie the Virtuosi with that very process for substance which I set down for my own remembrance after I had the first time actually made the Aerial Noctiluca and which I afterwards deposited seal'd up in the hands of the very ingenious Secretary of the Royal Society in the presence of divers Members of that illustrious Company And though since that time some other Tryals have enabled me to observe some Circumstances pertinent to that purpose yet I thought fit to leave it it as it was that others finding themselves in some sort oblig'd to employ their own industry their trials may as mine have done produce an instructive diversification of effects in an attempt where experience invites me to think that various degrees of fire and other circumstances and perhaps Casualties too may diversifie the Phoenomena and thereby both inrich the yet wanted and designed History of Light and assist the Speculative to accommodate a good Hypothesis to them Reserving then for another time my latter Remarks upon the Observations and Process delivered in this Paper I shall now only give you a few short Advertisements about it First I will not positively affirm that the matter I employ'd is the very same that was made use of by the Ingenious German Chymists in their Noctiluca for some inquisitive men have very lately told me that the Germans mingle two or more distillable materials whereas I employ'd but one matter capable of Distillation Secondly Though all the Twenty foregoing Observations and most of the Ten additional ones adnexed to them were made with that substance which I guess to be at least the chief that is employ'd by the Germans which was done for a particular reason not needful to be here express'd yet I first thought and upon my very first tryal found that 't is possible to make a Noctiluca of a dry and pulverable substance that for ought I can guess was never employ'd by Mr. Krafft or those he had his secret from And besides this second sort of Phosphorus's we made a third that was obtain'd from a Body that never had been either a part or an excrement of a Humane Body nor was mingled with any thing that had been so But though I found these self-shining substances somewhat differing from those made of the Liquor hereafter to be nam'd yet I cannot stay at present to say any thing more of them being content to have intimated That self-shining Phosphorus's have been actually obtain'd from more single Subjects than one Thirdly To name the matter though never so explicitely would not in my opinion have sufficed to inform those that would work upon it For Chymists themselves would in all probability work as hitherto on other occasions they have wrought upon the volatile and saline which they presume to be the only spirituous and noble parts of the Concrete throwing away the rest as useless and abominable And on this occasion let me add that I was the rather induc'd to set down this process that we may both observe and thankfully acknowledge the wisdom and bounty of the great Author of Nature who for our encouragement to study even his meanest works has been pleased in a Body

or an Alcalisate Salt to be predominant in the luciferous matter I then made use of But having since employed some of the water that was taken out of a Receiver after it had there been somewhat impregnated with that matter I thought fit to try whether this water wherein probably the saline Particles of our Subject might be more copiously dissolved or more active would not discover itself to contain somewhat of volatile Alcaly And to satisfie my self of this I dropt a little of the Liquor upon some Syrup of Violets that I had put upon a piece of clean Paper and found I was not mistaken in thinking it would change the colour of the Syrup from Blue to Green which yet it did more faintly than the volatile Alcalies as they call them even when they are Phlegmatick are wont to do This Liquor likewise as I remember made some conflict with Spirit of Salt when I first put them together as I inferred from the commotion of the mixture and the Bubbles thereby produced Nor were these the only ways by which I was induced to think that a volatile Alcaly not an Acid Salt or Spirit was the predominant if not the only Salt contained in the faintly impregnated Liquor Observ VIII BEfore I had set down many of the Observations contained in the first Paper I was desirous to try what would happen to our luciferous matter in such a vacuum or if you please in such highly rarified Air as is wont to be produced by our Air-Pump But in regard a Glass was to be opened in the exhausted Receiver which is a difficult work to do I was fain for want of conveniences to desist from my endeavors and prosecute some other Experiments most of them already recited till at length being furnished though not with accurate yet with tolerable means of making a Tryal and thinking an imperfect one better than none at all I took a Vial that had some luciferous matter in it though but such as was not apt to shine long at a time and this Vial being well stopt I kept till the flame or light within it expir'd then having plac'd the Vial in a Receiver on our Pneumatick Engine we pumpt out the Air and then not without some difficulty pull'd out the Cork in a dark place whereupon there presently appeared some light in the Cavity of the Vial which I the less wondered at because we found by certain Signs that by reason of some disadvantageous Circumstances we could not so well pump out the Air and hinder the ingress of new as not to leave though but very little yet enough to excite a flame that by former experience we found to need but an inconsiderable quantity of fresh Air But we observ'd that by the commotion of the Air occasioned by the pumping the flame would be as it were ventilated and blown up or made to shine more vividly Observ IX BUT not being satisfied by the foregoing Experiment I thought fit to vary it after the following manner There was taken a pretty large piece of Paper which being well moistned and partly besmear'd with our luciferous matter was thrust into a somewhat wide-mouth'd Glass which being put unstopt into a Receiver fastned to our Pneumatick Pump and with it kept in a dark place did there shine as I expected it would by reason of the contact of the Air yet contain'd in the Receiver Presently after this the Pump was set a work and we observ'd as formerly that the commotion made of the Air about the Vial did manifestly enough increase the light for a while and that the light seem'd to be lessened during the pauses intercepted between these Commotions both by reason of the Rest as of the Absence of the Air. And I likewise took notice That the flame that seemed to pass from one part of the wrinkled Paper to the other did sometimes appear to have as it were a palpitation and to afford a very unequal light and though when the external Air was let in through the Pump into the exhausted Receiver the flame seem'd to be quenched yet I judge that to be only a temporary effect of the waterish vapors that the Air had taken along with it in its way through the Pump and therefore I caus'd the Receiver to be taken off the Engine and then the Spectators were quickly of my opinion observing that upon the free contact of the fresh outward Air which was not like that last mentioned depraved by moist vapors the matter adhering to the Paper was quickly seen to shine again and that more vividly than it had done in the Receiver But because I suspected that this Vessel could not at that time for want of some conveniences be so well exhausted as on other occasions it has often been though by the Phoenomena hitherto recited it seemed to the Spectators that the flame was manifestly befriended and the light increas'd by the Air yet I think the Experiment deserves to be repeated when I shall be able to do it with more exactness Observ X. BEsides the Liquors that afforded us the foregoing Experiments we saved a little though but very little of a substance that was not liquid but yet almost as soft as mud This we obtained by pouring some of our liquor taken out of the vessels when the distillation was ended into a Glass Funnel lin'd with Cap Paper to try whether 't would filter But finding that that which pass'd thorow was too thin and aqueous the filter was hastily and for that reason not very orderly wrapt up and put into a Glass not capacious but yet of a moderate wideness at the mouth that both the filter might be easily thrust in and the Glass might be exactly enough stopt with a strong Cork After other Experiments formerly recited had been made I took this Glass and carried it into a dark place And though I could not perceive the least glimpse of light yet presuming that it contain'd some of the true matter of the Aerial Phosphorus or Noctiluca and consequently Exhalations that having been hindered by the stopple to flie away might be kindled or excited by the appulse of the Air I opened the Glass and saw as I expected an immediate Apparition of light Which light did disclose itself sometimes upon a lesser and sometimes upon a much greater part of the very uneven surface of the included Paper and seem'd to pass for a great while as long as I thought fit to stay to observe it from one part of the Filter and one side of the Glass to another I say seem'd because perhaps the Phoenomenon was produc'd by a train of eruptions of flames newly excited in several places rather than a bare propagation of the same But whatever it was the motion which was pleasant enough to behold was so odd and irregular that it did not ill resemble the motion of fire kindled by sparks strook into a good quantity of Tinder And this vertue of shining upon the ingress