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same sensation is
what is known to occur in the baro- every sensation of uneasiness. Since meter, which, when carried out to sea that time, the same affection has fre., in a calm, rests at the same height at quently occurred to ine in slighter which it would stand on the shore; degrees; and I have observed that it but when the ship falls by the subsi- has been under similar circumstances dence of the wave, the mercury is of rising suddenly from an ioclined seen apparently to rise in the tube position, after some degree of previthat contains it, because a portion of ous fatigue, sinking down again imits gravity is then employed in occa- mediately renoves ibe giddiness; and sioning its descent along with the ves- then by rising a second time more sel; and accordingly, if it were con- gradually, the fined in a tube closed at bottom, it avoided.” would no longer press with its whole. In his observations on the salutary weight upon the lower end. In the effects of riding, &c. Dr. Wollaston same manner, and for the same rea. observes, that although the term gestason, the blood no longer presses down- tion is employed by medical writers as wards with its whole weight, and will a general terin comprehending riding be driven upwards by the elasticity on horseback, or in a carriage, yet he which before was merely sufficient to suspects that no explanation has yet support it. The sickness occasioned been given of the peculiar advantages by swinging may be explained in the of external motion, nor does he think same way. It is in descending for- that the benefits to be derived from wards that this sensation is perceived; carriage-exercise have been estimated for then the blood has the greatest so highly as they ought. Under the tendency to move from the feet to- term exercise, active exercise has too wards the head, since the line joining frequently been confounded with them is in the direction of the mo- passive gestation, and fatiguing ef. tion, but when the descent is back- forts have been substituted for mo'wards, the motion is transverse to the tions that are agreeable, and even inline of the body, it occasions little in- vigorating, when duly adapted to the convenience, because the tendency to strength of the invalid, and the nature propel the blood towards the head is of his indisposition. His explanation inconsiderable. Dr. Wollaston thinks of the effects of external motion upon that the contents of the intestines are the circulation of the blood is found. also affected by the same cause as the ed upon a part of the structure observblood; and if these have any direct able in the venous system. The valves disposition to regurgitate, this conse, allow a free passage to the blood, when quence will be in po degree counter- propelled forward by any motion that acted by the process of respiration, assists its progress, but they oppose “ In thus referring," says our author, an immediate obstacle to such as have
the sensations of sea-sickness in so a contrary tendency. The circulation great a degree to the agency of mere is consequently helped forward by mechanical pressure, I feel confirmed every degree of gen agitation. The by considering the consequence of an heart is supported in any laborious opposite motion, which, by too quick, effort; it is assisted in the great work of ly withdrawing blood from the head, restoring a system, which has recently occasions a tendency to faint, or that struggled with some violent attack: or approach to fainting which amounts it is allowedy, as it were, to rest from a to a momentary giddiness withidimi. labour to which it is unequal, when nution of muscular power. At a time the powers of life are nearly exhaustwhen I was much fatigued by exer- ed by any lingering disorder. In the cise, I had occasion to run to some relief ihus afforded to au organ se esdistance, and seat myself under a low sential to life, all other vital functions wall for shelter froin a very heavy must necessarily participate, and the shower. Ju rising suddenly from this offices of secretion and assimilation position, I was attacked with such a will be promoted during such compadegree of giddiness, that I involunta- rative repose from laborious exertion. sily dropped into my former posture, Even the powers of the mind are, in and was instantaneously relieved by many persons, manifestly afiected by return of blood to the head, from tbese kinds of motion. It is not ouly
in cases of absolute deficiency of attended the man through his sufferpower to carry on the customary cir. ings, has laid before the Royal Soculation, that the beneficial effects of ciety a most accurate and minute gestation are felt, but equally so, statement of the symptoms that ocwhen comparative inability arises curred, and of the means made use of from redundancy of matter to be pro- to avert the evil. After this, he refers pelled. When, from fullness of blood, to several other cases sent from India the circulation is obstructed, the whole to Dr. Patrick Russell, and to an expesystem labours under a feeling of agi- riment which he made in the year tation, with that sensibility to sudden 1782, while on the island of St. Luimpressions which is usually termed cia: from all which he infers, that the nervousness. The mind becomes in- effects of the bite of a snake vary capable of any deliberate considera, according to the intensity of the poi. tion, and is impressed with horrors son. When it is very active, the that have no foundation but in a dis- local irritation is so sudden and so tempered imagination. The com- violent, that death soon takes place, posed serenity of mind that succeeds but the only alteration of structure of to the previous alarm, is described by the body is in the parts close to the some persons with a degree of satis- bite, where the cellular membrane is faction that evinces the decided iotlu- completely destroyed, and the neighence of the remedy. Dr. Wollaston bouring muscles very considerably in. quotes a very striking fact in justifica. Hamed. When the poison is less in. tion of his theory; and adds, “ If tense, the shock to the general system vigour can in any instance be directly does not prove fatal; it brings on degiven, a man may certainly be said lirium in a slight degree, and great in receive it in the most direct mode, pain; but if the poison produce a when the service of impelling forward local injury of sufficient exent, the the circulation of his blood is per. patient also dies, while all slighter formed by external means.
The first cases recover. The effect of the poimover of the systeins is thereby wound son on the constitution is so immedia up, and the several subordinate opera. ate, and the irritability of the stomach tions of the machine must each be is so great, that there is no opportuperformed with greater freedom, in nity of exhibiting medicines till it consequence of this general supply of has fairly taken place, and then there power.” In many cases (he further is little chance of beneficial effects be.. observes), the cure of a patient has ing produced. The only rational been solely owing to the external agi- local treatment to prevent the seconlation of his body, which must be dary mischief, is making ligatures allowed to have had the effect of re- above the tumefied part, to compress the lieving the heart and arteries froin a celiular membrane and set bounds to the great part of their exertion in propel. swelling, which only spreads in the loose ling the blood, and may therefore parts under the skin; and then scarify. have contributed to the cure by that ing frecly the parts already swoln, ihat means only. Different degrees of ex- the effused serum may escape, and the ercise must be adapted to the differ matter be discharged as soon as formed. ent degrees of bodily strength; and in sonic cases, a gentle, lovg.conti. nved, and perhaps incessant, motion WERNENIAN NATURAL HISTORY
SOCIETY. may be requisite; and, in these cir
, times heen attended with remarkable Arxa late meeting of this Society,
Mr. Campbell, of Carbrook, advantage.
read some observations on the cause It will be recollected, that a young of the anti-lunar, or inferior tide, man, in the autumn of last year, went impressing the Newtonian tlieory on into a room in wbich were two healthy that subject; and Dr. Thomas Theinrattle snakes, and that after teazing sop read an account of two natural them some time, one of them bit him, combinations of hydrogen and carbon, of which wound be lingered from the viz. carburetted hydrogen and super17th of October till November 4, whert carburetted hydrogen, neither of thein be died. Mr. Everard iloine, who containing any oxygen..
BRITISH INSTITUTION. the students; and, as a contrast to THE THE gallery is now open for the this, the Louvre, at Paris, has been
students, but something farther mentioned, where no restriction whatit seems is expected, from this patrio- ever is laid upon the students in copytic society. The restrictions of the ing any of the pictures, entirely, or “size of canvas," copying only of parts in part, and which is open every day, of pictures, limited days and hours, but Saturday and Sunday, to artists have given a tinge of dissatisfaction to and visitors.
VARIETIES, LITERARY AND PHILOSOPHICAL; : With Notices respecting Men of Letters, Artists, and Works
in Hand, &c. &c. A ,
nile Tourist, by the Rev. J. buildings yet remaining there, and Evans, of Islington, is preparing for others long since removed; together
with an old plan of the village, several A New Theory of Inflexion, adapted miscellaneous plates, &c. to the English language, by Mr. Julia de Vienne, an interesting noWright, is in the press, and speedily vel from the pen of a lady nearly rewill be published.
lated to a family of distinction, is pubShortly will be published Juvenile lishing by subscription. Inscribed, Jnstruction, or Moral and Religious with perinission, to his Royal HighLessons, Information on General Sub. ness the Prince of Wales. jects; including a natural and easy
A Translation of Bretkopf's Remarks explanation of Heathen Mythology,
on the History and Invention of Print&c. &c. By an Experienced Gover: ing, and the Prospectus of a larger
work on that subject, will speedily Family Sermons for every Sunday appear, in the Year, selected, by the Rev. G.
Mr. Westall's Illustrations of the ker's Works, are nearly ready for pub- submitted to the inspection of the B. Mitchell, from Archbishop Sec: Lady of the Lake will be published in lication.
The eight volumes of the Spectator, public at the same time. comprised in one commodious octavo
John Williams, Esq. of the Juner volume, will be published in a few Temple, is preparing for the press an weeks.
Epitome of the Laws relating to Com. Mr. William Walton, who has been merce, with the present state of mer. long resident in St. Domingo, is en- cantile practice and customs, and the gaged in drawiog up a statistical Ac- duties of consuls and supercargoes. count of what is called Hispanoja, to
Dr. Carey bas, in the press, a new distinguish it from Hayti, now go
edition of his Practical English Proverned by three chiefs, viz. Chris- sody and Versification, or "Descriptophe, Peytion, and Philippe Dos, a
tjons of the different Species of Eng. relative of Toussaint.
lish Verse; with exercises in scanning Mr. Hogg bas lately edited the pos- modated to the various capacities of
and versification; gradually accom. thumous works of Mr.Roberts, a young youth, at different ages; calculated man who evinced, it is said, great geo to produce correctness of ear and nius. These, mostly poems, will be taste; with occasional remarks on sold for the benefit of his family, who etymology, syntax, and pronunciareside in Bristol. He died of a con- tion; and a key for the use of teachers, sumption at the age of twenty-five, or those who learn without a teacher, and an interesting account of his life will accompany the publication. Mr. John Nelson, of Islington, is
ARTS, SCIENCES, &c. preparing for the press a quarto vo- A species of bemp, manufactured lume on the History, Topography, and from ihe leaves of a particular kind Antiquities of that Parish; illustrated of palm in Sierra Leone, and its neigts
bourhood, has been tried and fourd now said, will be the engraving he to suspend, without breaking, a weight made of Mr. Howard's copy of the picof 53 lbs. being ten pounds inore than ture at Mr. Coke's, from Michael An. could be borne by any hempen cord gelo; the eternal subject of envy and manufactured in England.
praise duly merited, where the FlorenThe French Minister of the Inte- tine soldiers are springing from the rior has announced, froin the cham- Arno to encounter their enemies. The ber of arts and manufactures, that in plate makes a part of the Rev. Mr. consequence of a recent invention, by Forster's classical publication). a M. Appert, for preserving fruits, ve- William Whitmore, Esq. of Dudgetables, meat, and all kinds of animal maston, Salop, has obtained a patent food, and even vegetable substances, for a magnetic toy, to facilitate the several years, and which having been teaching of children to spell, read, and tried, was found to succeed to the cypher in any tongue, with ease to the complete satisfaction of the members, teacher, pleasure to the children, and he had been adjudged a premium of proportional expedition. 12,000 francs as a recompence, on con- Mark Isambard Brunel, of Chelsea, dition of publishing his said invention, has also obtained a patent for certain which he has lately done, in a book machinery, for the purpose of making upon domestic economy, entitled, - or manufacturing shoes and boots. "L'Art de conserver plusieurs An- Another patent has been granted to pées toutes les Substances Animales Mr. Peter Durand, of Hoxion, for a et Vegetales."
method of preserving animal and veM. Parpouteer's new discovery of getable food for a long period. the use of the potatoe for stucco- The Copenhagen medal for last year plaisterers, has recently been adopted has been adjudged, by the Royal Soin England. Hence, from the starch ciety, to Mr. Edward Troughton, for of potatoes, quite fresh, and washed the account of his method of dividing but once, a fine size, by mixture with astronomical instruments, printed in chalk, has been made, and is very use- the last volume of the Philosophical ful, particularly for ceilings. This. Transactions. kind of size bas ko smell, being very. Mr. Peter Hawker's fossil alligator little subject to putrefaction, and also is now united, and set up in fine seems to be more durable, both in te. style at his parsonage near Stroud, in nacity and whiteness, than animal size. Gloucestershire. It came from Wes
G. Comberland, Esq. of Bristol, ton Quarry, near Bath, and is an unhas proposed a new scheme for pre- rivalled recovery: serving the lives of persons ship- An account of the great sand-stone wrecked, principally by having the crystals, discovered by Dr. Fox in digmattresses used in ships formed of ging the canal at Bristol, has lately cork-shavings. He thinks it might been presented to the Ceological Soanswer the end proposed, by filling ciety. these mattresses in a proportion equal A most exquisite etching by Barden, to the support of a single man, and has lately been given away to antiquathat, consequently, a mass of them rians for the Rev. Mr. Thornbury, of thrown overboard, linked together by Avening, near Stroud, representing ties at each corner, would form an three ancient sepulchres lately discoextensive raft capable of sustaining a vered in Avening, but since removed number of men, and thus convey and placed in the home ground of that them to the rocks or the shore in safe- gentleman, nearly in the same position ty; while compion rafts, on the con- as when they were found. trary, come on shore with too much
Squuring the Circle.--A letter, lately force, and are frequently disjointed received from Leghorn, savs, by the bows they receive, and the Pascal Cjofto, painter, architect, and people thrown off; besides, every geonietrician, resident in this city, time they pitch, the people are co- conceives he has discovered the favered witb'the waves, and some of mous problem of squaring the circle, them are unable to retain their hold and proposes to demonstrate it in an or rise again.
assembly of the mathematicians, who, Schiavonetti's best monument, it is with the professors of physic, are
invited to be present, and give their sheep:-" In sheep, thus affected, judgment upon his demonstration."
pare their hoofs, leaving no hollow to The Hydrostat, which is now in a hold dirt; if there be matter formed, state of improvement since it has been be particularly careful to let it out; tried at Paris, renders a diver able to after which, take some stale urine and remain under water at pleasure, while wash their feet quite clean from dirt, shut up in the machine, and with the and wipe them with a sponge; then help of pincers to pick up things at put the sheep into a house or shed, the the bottom. The Hydrostat is made floor of which bas been previously of copper, in the shape of a deep spread about two inches thick with basket, into which a man is introduced. quick lime, reduced to powder by a It is then, hermetically, closed by a
small quantity of water. The fresher cover, resembling a cap or helmet, the lime is from the kiln the better. which forms the upper extremity. In Let the sheep stand upon it for six or the front and back parts of the top two seven hours, and the cure will be ef
fected." pieces of glass are fixed to admit light. In the middle the tubes are fixed, one, to introduce air, the other to expel it,
America. and the third is used as a speaking trumpet. The hands of the diver are
Mr. Wood, of Richmond, Virginia, covered with leather, in the form of has published a new Theory of the gloves.
Diurnal Rotation of the Earth, deDr. Gregory, of the Royal Military Cycloid and Epicycloid; with an Ap
'monstrated from the properties of the Academy, has recently invented a plication of the Theory to the Expla. theory of solid angles, which is, at nation of the Phenomena of the Winds once, simple, satisfactory, and univer- and Tides. Two gentlemen in Richsal in its application. By means of mond, having laid a wager on the this theory, the relative magnitudes of question, whether the top and bottom solid angles may be ascertained, not of a cart, or carriage-wheel, in motion, only when they are of the same class-, move with equal or unequal velocias ihose formed by the meeting of ties? The consideration of it led Mr. three planes, those hy the meetings of Wood to consider, that every point of four planes, the angles at the vertices of cones, &c.—but angles of one class lipe in a horizontal plane, describes a
a carriage-wheel moving along a right may be compared with those of ano, cycloid, a leading property of which ther, with respect to magnitude; and curve is for the generating point to their mutual relations determined by describe unequal arcs in equal times, processes, as obvious and elementary and that any point in the upper semias the usual operations in plane trigo. circle of the wheel, must therefore pometry. He finds, for example, that move with greater velocity than the the solid angles of the regular tetraëdron, octraëdon, hexadiëon, and of the under semi-circle. This he ap
corresponding and opposite point in the right angled cone, are denoted by plies to the motion of the earth; the the numbers 87-73611, 216–35185, motion of any point on the earth's sur250, and 292—99922, respectively; the face, with the exception of the two maximum limit of solid angles, being poles, being compounded of two moexpressed by iono.
tions, a rotary motion round the axis The custom in Italy of supporting of the earth, and a progressive motion the vines by the poplar, has been im- along the piane of the ecliptic, will proved here by planting it with the also describe a curve of the cycloidal, Hop for the same purpose. It is found, or rather epicycloidal species, possess. also, that its leaves, after having shiel. ing a similar property with the comtered the hop from injurious winds, mon cycloid, generated by a carriagewould serve as manure when they fell. wheel. The cycloidal motion on the It is only the Italian poplar, populus points of ile earth's surface being g'astigata, which is capable of ibis ap- established, several important conseplication.
quences obviously present theinselves The following is given as a certain relative to the fluids which encompass method of curing the foot-rot in the earth, the phenomena of tives,