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2. Jobanni Conradi Barchufen Synopfis Pharmacie methodum pleraque medicamenta, five a Veteribus five n Recentioribus excogitata, componendi juxtà

conficiendi tradens. Editio tertia. Accedunt duo indices, quorum alter remediorum dofin, alter medicamina cuivis corporis affectui fingulariter dicata, monftrat. Lugduni Batavorum 1712. in Bus. Pagg. 260.

3. Fohannis Conradi Barchufen Compendium Ratiocis nii Chemici more Geometrarum concinnatum. Lugduni. Batavorum 1712. in 8vo. Pagg. 70.

ARTICLE LV.

OBSERVATIONES Mathematicæ més
Phyfice in India & China facta a Patre
FRANCISCO NOEL, Societatis
Fesu, ab Anno 1684. ufque ad Annum
1708. Praga, apud Joachimum Joan.
Kamenicky. 1710. in 4to. pagg. 112.
Na moble

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UM in fcientia naturali aliifque difciplinis
Phyfico-Mathematicis certitudo cognitionis ab
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air This Extract, taken from the Acta Eruditorum, is worth Reading; and I hope it will be the

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obfervationibus ac experimentis pendeat, nec quicquam valeant fpeculationes in mufæo peracta, nifi ex iftis originem trahant; magni femper fecerunt doti & intelligentes exiftimatores illorum labores, qui in obfervationibus ac experimentis induftriam exercuerunt, Quamobrem nulli dubitamus, quin Obfervationes Mathematicæ ac Phyficæ admodum Rev. P. Francifci Noel gratiffimæ fint future rerum mathematicarum ac naturalium curiofis, cum jure de iis dixe ris effe libellum mole parvum, fed utilitate revera magnum. Tendit nimirum ad perfectionem Geographia, Aftronomia, Chronologie, Politica & Phy ficæ.

Mappe ac libri Geographorum non modo in longitudinibus locorum & China & Indiæ mirum quantum inter fe difcrepant, fed etiam ita a vero aber rant, ut, dum navigantes fe longiffimo adhuc intervallo ab aliquo terræ tractu removeri arbitrantur, jam prope illum tangant: immo non ita pridem celebris quidam Geographus totam Indiam ultra trecentas leucas plus, quam revera eft, ab Europa removit. Latitudines eorundem locorum dimidium & amplius gradum erroris fubinde continere annotavit. Huic igitur malo medelam allaturus varias eclipfes fatellitum Jovis A. 1689, 1690. in urbe Sinica Hoayngan provincie Nankinenfis fub poli altitudine 33° 32′ multafque eclipfes lunares & folares paffim in India & China obfervavit, quæ cap. 1 & 2 defcriptæ leguntur. Ex fatellitum eclipfibus differentiam meridianorum inter urbes Honyngan & Nankinum 30', inter urbem Hoayngan & Parifios 116° 33′ 45′′, eli. cuit. Pofita igitur longitudine Parifiorum 22° 30' &

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more acceptable to the Readers, becaufe F. Noel's Book is not like to be fold in England. Į don't think it neceffary to tranflate that Extract inso English.

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primo meridiano per infulam Palmæ ducto, nactus eft longitudinem Hoayngan 139° 3′ 45′′, Nankini 138° 33 45 Ex eclipfibus lunaribus multorum in India & China locorum, e. gr. Goe, Malace, Siami, Macai, Pekini, &c. longitudinem derivavit. In eclipfibus circumjovialium obfervandis ufus eft lente objectiva 13 pedum regiorum Parifienfium, oculari vero 2 digitorum. Tempus menfuratum horologio fpira inftructo & quandoque pendulo indicante prima & fecunda, minuta per dupli cem indicem. Iftud juxta majus pendulum correxit. In eclipfibus lunaribus annorum 1684, & 1685. tabularum P. Dechales egregium cum cœlo confen fum notavit. Duratio prioris d. 22 Dec. obfervatæ erat 2 h. 59'; pofterioris, quæ d. 16 Jun. contigit, 3 h. 28' 30", cum calculus illam exhiberet 2 h. 58', hanc 3 h. 30 22". Antequam in eclipfi pofteriore luna tota obfcuraretur, color ejus fufcus & fangui neus in parte primo deficiente, & eo minus fanguineus, quo magis ad partem ultimo deficientem acceffit; luna autem rurfus emergente, partis adhuc obfcuratæ fubcineritius erat. Ad latitudines emendandas, partim quadrante Aftronomico, cujus femidiameter 2 pedes paulo excedebat, quique cum majore alio comparatus aftra plus vero 4' 30" attollere deprehendebatur; partim gnomone 24 pedum 10 dig. feu 7152 femiunciarum pedis, regii Parifini, & alio unciarum 3124 alto Solis atque ftellarum altitudines meridianas fcrutatus eft. Priore gnomone ufus eft Goe, pofteriore Babie, quarum illa Indie, hæc Brafilie metropolis. Reperit autem altitudinem Poli Goe eamque borealem 15° 31' 30"; auftralem vero Bahie, 12° 54" 30". Ex tot obfervationibus uberrimum laboris improbi fructum in catalogo 82 urbium Sinenfium longitudinis, latitudinis & mutua diftantiæ condendo percepit, quem contractum huc transferre non piget.

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Supponitur in hoc catalogo primus meridianus in infula Palma vel Ferri paulo occidentalioris.

In longitudine & latitudine ftellarum auftralium de terminanda Autores tot fubinde gradibus inter fe difcrepant, ut vix fciatur, de quibus agant. Hæc dif crepantia ante annos jam bene multos permovit Edmundum Hallejam, hodie Profefforem Geometria Savilianum apud Oxonienfes celeberrimum, ut in in fulam S. Helene profectus fidera auftralia obfervaret, & 350 ftellarum ad annum 1677 completum catalo gum ederet. Eadem de caufa eundem laborem ite. ravit Nofter, & eum in finem partim in collegio Ra. chol Societatis Jefu ad altitudinem poli borealis 15 18', partim Macaenfi ad altitudinem poli itidem bo realis 22° 12', partim denique in Babienfi ad alti tudinem poli auftralis 12° 54' 36" declinationes & afcenfiones rectas ftellarum omnium auftraliorum fcrutatus eft. Pro declinationibus determinandis altirudines méridianas fumfit quadrante Aftronomico, de quo fupra dictum eft: afcenfiones autem rectas inventurus ope trianguli filaris fuper linea meridiana extenfi ftellarum per Meridianum tranfitum & hordlogio, de quo itidem fupra, differentiam temporis menfus eft, quod inter tranfitum Sirii & Antares, ftellarum notæ afcenfionis rectaæ, & inter tranfitum ftellarum reliquarum per meridianum in terceffit. Hinc enatus eft catalogus, in quo 352 ftellarum auftralium afcenfio recta, declinatio & magnitudo ad annum Chrifti completum 1687 annotatur, & ex catalogo conftructa mappa, quam ex ipfarum ftellarum afpectu coelo fatis conformem expertus eft Autor.

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Hæc quidem materiam capiti quarto præbent; in quinto varia ad Aftronomiam Sinicam fpectantia explicar, cyclos puta, annos, menfes, dies, horas, conftellationes, figna coeleftia & omnium ftellarum nomina Sinica, una cum menfuris & ponderibus $inicis. Major cyclus feu periodus eft ye, yuen, id eft, revolutio una ad primum principium, annorum

129600

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