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ing killed, without the contiguous freezing water appears fery great ; part having suffered in the least. Two in one instance, froni' an iron fhen of or three similar tracks appeared to about nine inches in diameter, it threw have been successively formed, year to the distance of 415 féet a plug 41 after year, running regularly parallel inches in length. Dr Huiton of 10 one another. · The Dr haş men-. Woolwich, by whom these experitioned two caufes for those appear. ments were communicated, concludes ances; electricity and insects ; but he the paper by a calculation of the quanseems fatisfied with neither. We tity which water expands by freezing, regret that his observations, which which appears to be in the ratio of were firft made in !776, have not , 174 to 10, or between the 17th and been far enough carried on, to lead to oth part of itself.. a probable conjecture as to the cause VI.“ Abstract of experiments made of the phenomenon, which might per- to determine the true rębstance of the
haps throw additional light on the air to the furfąces of bodies of vari. · philosophy of mountains. ; nus figures, and moved through it
II. An account of the method of : with diferent degrees of velocity,” by making otter of roses in the East-inDr Hution of Woolwich. These ex. dies. It is done by evaporating in perintents were made with a machine the fun water strongly impregnated confifting of a small vertical axis, with with rose leaves. ,
a long hosizontal armi connected with III. Description of a mercurial le. it, to the extremity of which was afvel by Alexander Keith Esq; The fixed a hemisphere of pafteboard, the instrument consists of a wooden box, bollow part covered with a fat circle
with two square cavities at the ends of the fame, that either the round or '. fhut in by wooden partitions, and the flat fide might be made to go fore. communicating with each other by a most against the air. A fine folk cord
channel running along the bottom of being wgund about the axis, and made the box. Mercury is poured into the to go over a pully by a small weight cavities till they are about half full, at the end, turned the machine, from and the fights, which are made of ivo. the diversity of the velocity of which, ry, Hoat upon the surface. The in- in different cricumstances, the refift. vention is ingenious ; we only appre- ance of the air could with tolerable hend fome inconvenience in the ule of accuracy oe ascertained. From the it from the difficulty of confining or table given in the paper of the velocisecuring the mercury in transporta- ties and actuating weights, the gene: tion.
; - ral conclusions drawn are, that with IV. “ Pathological obsergations on different velocities the resistance is the brain by Mr Thos. Anderson, fur- nearly as the square of the velocity, geon." Several cafes are here commu- that the resistance to the dat side of nicated, confirming the opinion that the hemisphere was to that of the an affection of one hemisphere of the round fide as to one ; that tbe al. brain produces its morbid symptoms titude of a coluna of air, whose preson the opposite side of the body. "fure is equal to the resistance on the
V. " Experiments on the expanfive found lide, iş half the altitude due to force of freezing water, by Major the velocity of the figure, the experiWilliams of the Artillery, made at ment in this case agreeing with the Quebec in 1784 and 1785," From theory, but differiog from it on the these curious experiments, made by fat fide nearly in the proportion of filling with water an iron bomb thell, one fourth of the whole. For closely plugged up, and then expofing VII. "Observations of the places of it to the cold, the expansive force of the Georgium Sidus, by Professor Ro
. bifon," from which an error of the the senteries, fluxes, putrid fevers, and har cry of this Planet appears of 6+5" in bitual colics. Botanical descriptions Jongitude, and -18" in latitude, accompanied with figures of both male . VIII.“ Answers to the objections and female plants are given... of M. de Lucwith regard to the theory XI. “ On the motion of light as of rain, by Dr Hurton.” This is a affected by refracting and reflecting pretry long and curious paper, in reply lubítances which are also in motion, to some things advanced by M. de Luc by Profesor Robison.” In conse. in his Idées sur la Meteorologie. The quence of an observation of Abbé Boftheory advanced by Dr Hution in the covich, “That if a telescope be con former volume of ihese transactions Itructed, having its tube filled with was, that the capacity of the asmof water, and be directed to a terrestria! phere for retaining humidity increas. object properly Gituated, it will be found ed with its heat, but in a growing and to deviate from that object by a ceraccelerated rațio ; hence, if two por- tain determined quantity eyery day.?? tions of air, of different temperatures, Mr Robison has been led into these cach sufficiently faturated with humi- fpeculations which principally regard dny, are mixed rogether, the tempe- the aberration of light. The contrive rature of the mixed mass would be of ance of a telescope filled with water, too small a retentive power for the de- tho' specious in theory, he has, he gree of humidity introduced into it; fays, found impra&icable in execua part of which must iherefore forın tion, for want of a substance sufficientą a visible condensation, and be discharg. ly, transparene to admit the necessary ed in vapour or rain. M, de Luc's magnifying power; but he at the fama 'objections seem rather to be directed time faw that this aberration of terresagainst some of the facts adduced by třial objects might enable philosophers Dr Hution, in support of his theory, to decide the question respecting the than against the thcory itself, and in acceleration of light when refracted the present paper the Dr has in a very towards the perpendicular, by means satisfactory manner obviated, these ob- of a compound microscope of a panijections, and adduced some very folid culas construction described in the pa. additional proofs in support of his doc- pere Mr Robison had at first formed trines respecting evaporation, great hopes of several curious disco: IX. “ Account of a distemper vul- veries from this initrument, but in the garly called the Mumps, by Robert course of his examination he discover. Hamilton M. D.” This disease, ed an overfight in Mr Boscovich's reawhich seems not to be a common soning, which unfortunately çendered one, made its appearance ar Lynn this beautiful thşory nugatory, and pue in 1758 and 1761 ; Dr Hanilson was an end to the expectations of farther at frít at a loss how to treat it; but discoveries from ihat quarer. This afterwards fell aponi a meihod which error, and the circumstances relating is communicated in this paper, and to it, are accurately detailed in the was in general attended wiih success. present paper. ** X. «A botanical and medical ac- XII. Demonstration of fome of count of the Quallia Simaruba, by D: Matthew Stewari's general Theo. William Wright M. D," This tree, rems, by Robert Small, D.D.” There which is a species of the Quallia, is would be unintelligible without the known jo Jamaica by the names of figures annexed., . Mountain Danson, Birter Damlon, XIII. “ Remarks on the astronomy and Stave-wood. The wood is hard, of the Brahmias by John Playfair, and useful for building, and the bark A. M." This is a long anal curious proved an excellent medicine in dy- paper, though we are not sure but it
might might have been as properly ranked ces are touched on in the paper, tho' famong the Literary as the Physiologi- "but lightly, which tend much to concal papers, being valuable mostly as firm our scepticism in regard to this an investigation of the extent and an extraordinary antiquity; the one is tiquity of the Indian astronomy, and the filence of the ancients with re: not on account of the scientific re- gard to the Indian altronomy, tho' Searches it contains. This, however, had it fo early attained its supposed is of no consequence, the paper itself perfection, it could scarce have escapcertainly merits attention. The mate- ed iheir notice. The other is, that tials of it are chietly taken from M. the Brahmins at present have no Bailly's. “ Traité de l' Aftronomie In. knowledge of the principles on which dienne et Orientale ;" but Mr Playfair their rules of calculation are founded, has verified the calculations himself, –a curtain proof at least that sheir and gone over the reasonings with the science, if really the work of a remote moft scrupulous accuracy. It is im- antiquity, has been very imperíectly possible to give a proper "abstract of and-uoskilfully transmitted to them ; the paper, it is sufficient to say, that it 'a circumstance that must grea:ly dicontains strong arguments in favour of “minish the authority of their testimothe antiquity of the Indian astronomy, ny as to its origin and ancient state. which is here carried back to the year Mr Playfair concludes with obsery. 3102 before Chrift, and by an inge. ing, “ that the whole evidence on this nious deduction from the table of the subject is not yet before the public, celeftialmotionsinuie among the Brah- and that the repositories of Bepares mios, compared with the real motion may contain what is to copfirm or co as ascertained by European astrono. 'invalidate these observations." Til my, Mr Playfair attempts to Thew, these are laid open, and their contents with much force of reasoning, that the made known, we apprehend it will be places and motions of the heavenly fafeft to suspend our judgment on this bodies must have been a&ually obferv. obfcure though curious subject. : ed by the Brahmins at that early peri-, XIV.“ On the Resolutionof Indeod, and could not have been calcula- terminate Problems," by John Leslie, ted in an after-age, while, at the same A. M. The object of this paper is to time the construction of the tables im. resolve the complicated expresiops ob pline a great knowledge of geometry, a. tained in the folution of indeterminate rithmetic, and even the theoretical part problems into limple equations, by of astronomy. The arguments con- help of a single principle admitting of tained in this paper, we admit, are a very extenswe application. « Let Itrong, and yet doubts, strong doubts, AXB be any compound quantity e. still remain. We couid hare wished qual to another CXD, and let m be that the material facts and documents any rational number assumed at plea. on which the reafonings are founded, sure, it is manifest that, taking equibaad come through the channel of an multiples AxmB=CXmD; if there, author less an enthusiast for Indian fore we suppose A = md, it must folattronomy than Mr Bailly. Great as his abilities confessedly are, he may low, that mB=C,or B=- Thus have been led, by his system, to find a perfection in these Brahminical tables, two equations of a lower dimension which they do not really possess, and are obtained: By repeated applicawhich they owe more to his ingeni- tion of this principle, an higher equa. pus interpretation than their own in- tion, if it admit of divisors, will be re. minfic excellency. Two circumftan- folved into those of the first order."
The mode of applying this principle. Such are the physical papers.comin some of the more.general problems tained in the present volume ; our. is given by Mr Leslie.
readers will ealily perceive they are , XV. “ Dissertation on the Climate not all of equal value, but we may of Rusia by Mathew Guthrie.M. D.” Safely affirm, that they are all of them, Dr Guthrie some years ago formed a at least in some degree, respectable, defigo of endeavorring to irace the and several of them will do real boinfluence of a cold climate on the hu- nour to the Society man body;-in porsuance of this plan, ,
[To be continued.] he has here given a curious and accu. rate detail of the phenomena of the Rushan climate. It is scarce polible Short Sketches of the ancient Northern to do justice to this paper by any a- Mythology. By F. Sayers, M. D. bridgement, we can only mention a 400 512 pages. Price 3 s. odą few leading particulars. The Rulian Johofon, 1790. ; winter latts from the end of September to the "beginning of May, the The objeet of the ingenious author mean period of the continuance of of thefe pieces, is beft explained by ; froît and snow about 230 days in the a part of his preface : year. Hail and tempests are very uo' “ M. Gray is the only one among , common in that reason, and the prevail our celebrated poets, who has chosen ing wind is the West; the air, tho' to notice the mythology of the Gorlis; cold, is remarkably pure and elastic, he has touched it indeed with a mal... giving a surprising tone to the human terly, though sparing hand ; yet even frame, and seems to be stroagly im. the little which he has chosen to in
pregnated with the ele&tric fluid. troduce, has repaid his attention, by . From the mode of living in Peters- adding a splendor, as well as novelty,
burg, to guard against the weather in to some of his popular performances. winter, Dr Guthrie says he is con. It is certain, however, that the most vinced less cold" is felt there than in sublime features of Scandinavian suLondon or Edinburgh during the cold perstition have hitherto been conceal. moitt weather that often takes place ed in the Sagas of Iceland, or havo in these two cities. The Ruffian fum- appeared only in the tragedies of mer is nearly as hor as the winter is Klopflock, and a few other pieces cold ; two British travellers from Ben- little known, except among the Ger. gal complained much of the hear of a mans and Dades, to whom they owe , Petersburg Summer; the atmosphere their existence. This being the case,
duriag that period is in general serene I am tempted to publish these short i and clear, but the hygromneter in a fine poems, with a view of giving some
Summer evening indicated a greater Ilight idea at least, of the negle&cd degree of humidity thao during the beauties of the Gothic religion, and molt continued rainy weather. Spring of recommending a freer introduction and autumn are unknown in Russia, of irs imagery into the poetry of the fummer and winter running into one Englith nation." another, almost without any sensible intermediate period. To this paper. are annexed iwo letters from M. Æ . pinas, Counsellor of State, to Dr Adriano ; or, the First of June, a Guthrie, containing some remarks on Poem. By the Author of the Village leveral electrical meteorological phe- Curace, 8vo. pp. 105. s. 6d. Jewed pomena peculiar to the climate of Johnson, 1790.
IN this poem, as in the village Cu- first as a Fellow of the Linnéan Socie. fate, we see the faniç actual obser. ty of London, and, in the nex: place, vänce of nature ; while; by attending as a zealous disciple of his great malto the emotions of his own mind, and ter. The doctor writes very threwd. by describing what he himself fees, ly; and evinces that he has viewed the author irresistibly calls forth simi- the subject with accurate attention. las feelings in his readers. The poem His language is every where free from is not, however, without numerous personal reflection, and it is such as desects. .
a liberal opponent cannot dislike to reConsidered as a whole, Adriano pof- ceive. Sesses an advantage which the Village This subject has been so often dil. Curute wanted; it has a regular fable, cussed, that it is needless to make without which the best poetry, after any particular quotation. The bola. a time; becomes infipid, and even fa- niit may be pleased to read the parti. riguing. Independently, however, of culars of Mr Sinellie's objections, and this, the present work. Voses. its fupe- to observe the adroit manner in which riority ; its bcauties are fewer, and Dr Rotheram turns many of them to its blemilhes are more conspicuous. the confirination of the doctrine which
The fable is finple; it is, as the they were intended to subvert. title implies, an history of the occur. The migration of swallows has beca rences of the summer's day: the ad. maintained by Mr Smellie : Dr Ro.
rentures, indeed, are numerous, and theram disputes the point, and is sa · might, perhaps, never happen ; but ther inclined to think that they pals
still they are not so far removed from the winter in a torpid state ; not that the limits of probability as to create any fuils are, or, perhaps, can bu, yet disguft.
brought, fufficiently satisfactory to ascertain the truth.
The Sexes of Plants vindicated; in a
Letter to Mr William Smellis, Mem-
of amiable manners in private life. THE doctrine of the Sexes of Plants He had enjoyed the benefit of a libefeems so well establithed, and the ex. ral education; and found a pleasing re. periments adduced by Linné himself, lich, from professional occupations of and by his disciples, have wrought an adire and laborious nature, in culsuch copriction on the minds of the tivating the muse. He died, however, generality of men, that a perfuafion without having prepared these pieces to the contrary will not readily pre- for the eye of the public. lo chefe cirvail. However, we do not discoun. cuniftances his friends are responsible tenance the questioning any theory, for the publication now before us ; and for every attack produces some freih we muit do them the justice to say, proof of the tru:h.
that we think they have no ceasure to D. Rocheram esters the lifts on dread on the score of an imprudent this cccafion with great propriety, partiality to the merits of the author.