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inserted in the Acts of Copen- equally demonstrable; for some will hagen.

swallow as many as can be brought Do not know, whether you ever

them, without the least scruple ; observed, that the hair which, in and, indeed, there is but little reapeople when living, was black or

fon to suppose that a quantity of grey, often after their death, in poison, fufficient to produce such digging up their graves, or open

fudden and apparent ill effects, can ing the vaults where they lie, is be contained in so small a crab, found changed into a fair or faxen when those of much larger dimen. colour ; so that their relations can

fions are daily eaten with safety by scarce know them again by such a

all sorts of people on those coafts, mark. This change is produced, where they are found' in plenty. undoubtedly, by the hot and con

3. That it cannot be owing to centered vapours which are exhaled any vicious quality imbibed from from the dead bodies.

the copperas-beds near which they are found, because the same effect

is frequently produced by eating Thoughts on the poisonous effects of miles from any copperas-bains; and

muscles gathered many hundred Muscles,

by those of the whitest and most H E poisonous effect, consequent inviting kind; nor can a quantity

on eating muscles, does not of vitriolic or mineral pungent falts, proceed, as I apprehend, from any fufficient to poison a person, exist All principle in the muscle itself, nor in dressed muscles, without discofrom any noxious quality in those vering itself either in the liquor, or little crabs frequently found in upon the palate when the muscles them : neither does it proceed from are eating. any property derived from the cop- And, 4. It cannot proceed peras-beds, near which muscles are from any heterogeneous mixture of sometimes found; nor from the animal salts in the stomach of the malignity of any corrosive mineral eater, because the sudden swelling whatever, nor from any heteroge- of the person affected is a sympneous mixture of animal falts that

tom that never follows from such a muscles may meet with in the sto. cause. mach of the eater, for the follow- It is further observable, that par. ing reasons:

ticular people only are affected by 1. That no poisonous quality is the eating of muscles, and those inherent in the substance of the differently at different times. muscle, is evidene from this : that myself acquainted with some per.. multitudes have made the muscle a fons who never could eat 'muscles part of their food, for many years, without being ill; but who can now without finding the least inconve- eat them boldly, and without the nience; on the contrary, have found least apprehension of any bad conthem a wholesome, nourishing, and sequences : and I have myself eaten even a delicious food.

them from my infancy, and yet they 2. That the poison which pro- ' have never once disagreed with me, duces the effect, if any such there nor with any of my family, fave be, does not refide in the crab, is

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I am therefore of opinion, from inclined to make the muscle a part all the observations I have been able of their necessary food, as in some to make, that the disorders pro- places they are plenty, and are cerceeding from the eating of muscles, tainly nourishing, I would advise happen from the ready disposition them, by way of prevention, first of fome glutinous particles on the to prepare their ftomachs by gentle surface of the mufcle to adhere to emetics, and then to eat of them what it touches of the stomach; sparingly, with much bread and and that the real cause, of what is butter; and, by frequently eating generally thought the poisonous ef- them in this manner, those people, fect, is only the cohesion of the with whom such wholesome Meilmembrane of the muscle, like a fish have disagreed, have been piece of leaf-gold, to the inner coat brought to eat them without danor lining of the stomach, which, ger. when once dislodged, the patient Elex, March 20. J. C. almost instantly recovers.

The reason why some may be more liable than others to be af- On the property of the Box-Tree to fected in this manner, may be owing make the Hair grow.-- From the to the disposition of the stomach Ephemerides of the Curious. itself, the viscosity of whose contents may be a concurrent cause of A young woman, of Gunbera in

The usual fymptoms that follow a malignant dysentery, which occasuch an adhesion, are great oppref- fioned the falling-off of all her hair, fion of the præcordia, ftrangulation, was advised by a person, some time anhelation, short cough, tingling after her recovery (as her hair was ears, watery eyes, swelled face and not likely to grow again of itself, hands, with efforescence and itch- her head being then as bare as the ings in the skin; most of which hand) to wash it all over with a desymptoms I have known to follow coction of box-wood, which the the eating of raw hot bread, swal- readily did, without the addition of lowing the skins of grapes, and even any other drug. Ufing no precaufrom eating French beans. In all tion to secure her neck and face, these cases, gentle emetics seldom hair of a chesnut colour grew in fail to relieve the patient; but as effect on her head, as she was told sudden disorders of this kind some- it would ; but her whole neck and

fatal before help can be face was also soon covered with called in, oils of any kind, mixed red hairs, which made her so dewith warm water, taken into the formed, that the appeared little ftomach, may, in some cases, have different from an ape or monkey. a good effect : for, as in loosening a A physician advised her to apply to plaister from the skin, oil is often her face and neck, a depilatory of the eafieft way of removing it, so, the refin of the larch-tree, mixed in cases of an adhesion to the inter- up with that of maftich: but we nal coat of the stomach, oil may have not yet learned what effect this have the like effect.

remedy has produced on her. Were people of weak ftomachs


times prove

Of a Stone, that, like the Chameleon, tury, every age, every country is

has the property of changing its diftinguished by new discoveries, colour, in certain circumstances.- and the time present in this article From the Ephemerides of the Cu- always adds to the time past. The rious.

mineral lately found in the neigh

bourhood of Gera in Voigtland, a Andrew Cnoffelius, one of province of Saxony, is an inconM.

the physicians of the court of teftible proof of this assertion. It Poland, relates, that, having been appears in form of a pretty ftrong at Thorn, a famous lapidary there vein, leaning against a mountain. Thewed him, among other curiofi- No person hath as yet presumed to ties, a stone, called by some the define or impose a name upon it, mineral polypus, about the size of either old or new; because its

proa large pea, and of an aih colour. perties are so peculiar, that when What was wonderful in this stone some people find an analogy beis, that, though opaque, and have tween it and certain minerals, others ing no transparent part, after being perceive very confiderable differlaid in water, it began, in less than ences between them. It is a very fix minutes, to appear shining at dusky substance, extremely white. the edges, and to communicate to resembling chalk, or the whitest the water a sort of luminous Tha- terrestrial marrow, a quality withdow, of the colour of yellow am- out which it would be taken for the ber: it afterwards passed from yel- talc of filver (lapis talci argenteus) low to the colour of an amethyst

, for it feels fat to the touch. It is and from thence successively to used as paint by the ladies, and can black, white, and a cloudy colour, neither be altered or impaired by and, as it were, surrounded with fire : but the talc of silver is ususmoke. At last it appeared quite ally greenish, and that of gold yelbrilliant, intirely transparent, and low : besides, talc is flinty, and of a very beautiful yellow-amber found in large pieces. All these colour. Taken out of the water, it qualities do not center in this new returned to its former opaque ftate, mineral, while it hath others which after being coloured successively, we don't find in talc. A learned and in a retrograde order, with and indefatigable mineralift and the same dyes it had before assumed chemist has endeavoured, by all in the water.

possible experiments, to discover The doctor adds, that this stone the properties, and determine the is natural, and not a production of true use of this fubitance: and art; and that it also may be re- these are what he has already ascergarded as a proof of the existence tained.

1. The mineral is very proof a formal light in nature. per for polishing gold and silver :

it leaves not one scratch, and takes

away every thing that can stain these Description of a new mineral.

metals. 2. It fuffers no change in

the fire, and cannot be brought to IT may be reasonably doubted, fufion...3: In consequence of this

whether mankind will ever know last quality, it may be used for all the riches of nature. Every cen. the smelting and separation of me.


tals. 4. It makes an excellent on the 29th of July, 1692; and wash for the skin, which it won- which, consequently, had lain in derfully cleans and softens, having the water fixty-four years. M. Monothing corrosive in its composition. rand, jun. had the curiosity to exa5. Being put in water, it instantly mine them; and sent the following dissolves. 6. Being diluted with a account to the Royal Academy of great quantity of water, it may be Sciences at Paris., used as varnish to figures of plaister, The guns were covered, both which afterwards appear as if they without and within, with a crust of were filvered. 7. It may be used mud mixed with fand, &c. This for drawing on paper like lead ore: crust being taken off, the cannon The strokes of it are soft, substan- were found to be as soft as tin: but tial, and shining, and extremely after being exposed to the air for proper for drawing flowers to be twenty-four hours, they resumed coloured and painted. 8. It yields their former degree of hardness, and a very fine magifterium, infinitely bore the largest charges three times superior to that which is prepared fucceflively, without being suffered from marcasite, and affords an in- to cool, tho' besides the balls, they comparable white for the ladies. were loaded with a number of Aints 9. It may be used by organ-makers, on purpose to try them. to smear the fustian of their moulds, Becher, and some other authors, which, by that means, will be pre- have given some interesting hints served in the furnace, without be- on the properties of marine falt; ing burnt so soon as it commonly which may serve to explain this is. 10. It gives a polish to the or- phænomenon : but as this is only a gan pipes, like that of silver. A single fact, Mr. Morand doth not person of learning, to whom we pretend to account for it, contentcommunicated this paper, being ing himself with relating the cirjustly struck with the qualities of cumstances. Tuch a mineral which melts in water, and refifts fire, thinks he perceives in it some resemblance to a mineral mentioned by Samuel Nor- Observations on the Salamander, by thon, who calls it Election..

Matthias Tilingius, a member of the Academy of the Curious in Ger

many. Strange effects of Sea-water on Caft Iron.

O ME a Royal Academy of Sciences at Paris,

student for the year 1756.

ing out herbarising in a wood in the

neighbourhood in that town, I IN N the month of July 1756, there found a land falamander, which

were fished up, in the road of La was black, and spotted with yellow, Hogue, within musket shot-of Fort like a lizard. I was pleased to have Lillet, four iron guns, one of which an opportunity of trying whether was a sixteen-pounder, part of the this insect could effectually resist wreck of M. de Tourville's squa- the heat of fire; and, as soon as I dron, to which that general set fire came home, I threw it accordingly

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into the fire, but it was in a short resemble the salamander, than the ass time burnt, and reduced to ashes. does the horse, or the owl the parrot.

The ancients have told us a great I should be inclined to embrace number of fables concerning the fa. the second opinion, if the observalamander, and, among others, that tions I made did not seem very conit remains unhurt by the activity of trary to it. I cannot indeed aver it fire. Soine authors have indeed for matter of fact, that the sala. assorted, that the salamander refifts mander that I threw into the fire, not only the heat of fire, but that it lived therein one moment : for, lives in it as its own element, and having repeated several times the feeds and thrives upon its substance. experiment, in presence of some Some others have thought it enough learned men, I observed, that so to say, that the salamander can live foon as I laid them on the coals, for some time in fire, without being after struggling a little to save themburnt, because, at first, the aqueous felves, they gaped and expired ; so exudation, caused by heat, from that it always appeared to me that its body, extinguishes the fire; but they could not bear the heat of fire, if the fire should be rekindled, or during the shortest interval of time. its heat increased, it would be burnt It is true, they remained afterwards and consumed. Others, in fine, pretty long before they were conhave maintained, with more reason, fumed, because a plentiful exudathat nothing is more contrary to fa- tion of milky liquor oozed from all lamanders than fire, being con- the pores of their skin, as others sumed and reduced to alhes, soon have already observed, which dimiafter they are thrown into it. This nished the activity of the fire for is verified not only by the following some moments; but, as this moisobservations, but by those of several ture acquired a thicker consistence, mnodera authors.

the salamander became less, and, For my part, I am persuaded, wafting away by degrees, was at last that what has given room to ro er

reduced to ashes. roneous an opinion, which passed Now, what is there in this exfrom ancient authors, who copied traordinary, or particular to falaone another, to the moderns, is, manders ? Does not the same thing that formerly this infect was known happen whenever a bit of raw fler no otherwise than by its name: is put into the fire, or even wood, hence we may account for the mon- which are not inflammable till the strous paintings and descriptions humidity contained in them is evathat have been made of it, some. porated? Without paying theretimes representing it with the head fore any regard to the authority and of a sheep, and fometimes with the superstitious ftories of the ancients head of a serpent; sometimes concerning. salamanders, it


be cloathed with a lanuginous skin, confidently asserted, pursuant to exand sometimes with a scaly skin, perience, that falamander, instead rough, oily, &c. One author puts of living in fire as in their own eleit in the class of worms; another ment, instead of being nourished in that of spiders : so that those with fire, and extinguishing it by a descriptions and paintings no more property peculiar to them, surely


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