why the Author has put out another Book, wherein he answers the objections raised against

it.

Lettre en forme de Differtation, pour fervir de Réponse aux difficultez qui ont été faites contre le Livre des Obfervations fur la Saignée du pied & fur la Purgation, au commencement de la pe→ tite Verole, &c. Paris, printed for William Cavelier &c. 1725. 'Tis a fmall Octavo, confifting of 107. pages.

The Style of the Author has been cenfured, Whereupon he fays: "Tis an inconvenient "thing to write about Phyfic in French; for, "that language which is not the language of "Phyficians, expofes them to a new cenfure, "And indeed, the harfhnefs or inaccuracy of "their Latin ftyle was never objected against "them we fee no difference made in that re"fpect between Authors more or lefs elegant, "when they are valuable for the matter. Cœ«lius Aurelianus has not been reflected upon for his harsh ftyle, because it is energical and "perfuafive, though not elegant: and therefore ❝he has been no lefs commended than Celfus,

the Cicero of the Latin Phyficians. Laftly, "the famous Dr. Stahl, though fo much be"neath Fernel for the Latin tongue, makes a great figure among the modern Physicians;

tis because it has been a maxim that thoughts σε are more neceffary in Phyfic than words, "fince cures are not performed by fine language. "Pity therefore my misfortune, Sir, that I have

writ in French, fince the Barbarifms objected "against me, would have been excufed in La❝tin".

66

In another place the Author fays: "A Phy"fician fhould only write in Latin, and in the way of Hippocrates, relating facts, circum"ftances and obfervations: the whole fhould be "plainly delivered, without opinions and rea"fonings, without conjectures. For, Sir, if 66 you mind it, three parts in four of a good "Book in Phyfic take up now philofophical re"flexions, curious explications, ingenious cal"culations, and reafonings. Physicians are di"vided about all thofe things, because every "one of them thinks, calculates, and argues "in his own way, to juftify his practice. Let "Physicians with great fairness, and with a "mind well verfed in obfervations, give only "for the time to come exact defcriptions of "difeafes, of the remedies that have been used, "and of their fuccefs either good or bad; let "them mention the differences of temper, age "and fex: thofe things will be instead of a "System. The mind, being thus directed by "the laws and method of Nature, will have a cc greater help for the knowledge and cure of "diseases, than by the curious detail to be found "in the most agreeable Treatifes of Phyfic. "Aretaus, and Caelius Aurelianus writ in that "way after Hippocrates: hence it is that they "did not publish large Books-What's the "reafon, Sir, that Phyficians have left off wri"ting in that tafte?By that means, they "would understand one another, without any "malicious conftruction: nothing would be "denied, every thing would be agreed upon, cc as being grounded upon facts; and men who "were made to love and efteem one another, "far from growing angry, would instruct them"felves mutually "

II. Father

II. Father Le Quien has published a Book against the Differtation of Father Le Courayer concerning the validity of the Ordinations of the Church of England. Father Le Courayer is writing a reply to that Dominican and his other Adverfaries. It were to be wished that those English Divines, who have any Pieces, never yet printed, about the confecration of Bifhop Barlow, or that of Archbishop Parker, would be pleased to communicate them to Father Le Courayer, that this matter may be fully cleared, and with all the evidence it is capable of. Father Le Courayer will make a good use of those Pieces, and acknowledge that favour in a public

manner.

[I take the liberty to intreat thofe Divines, who have any thing of that kind, to communicate it to Father Le Courayer. It will be for the good of the Church of England.]

III. Eclairciffement fur l'Analyse des infiniment Petits. Par Monfieur Varignon, Membre des Academies Royales de Paris, de Londres, & de Berlin, & Professeur Royal. Paris: printed for Rollin. 1725. in 4o. pagg. 118.

Those who defign to ftudy the Book of the Marquis De l'Hopital upon the fame fubject, will find in these Remarks of the late Mr. Varignon an explication of many difficulties, which might perplex them. He has cleared thofe places, wherein M. De l'Hopital fuppofes in his Readers a knowledge which frequently they have not; and by taking a different way from that of M. De l'Hopital, Mr. Varignon enables them to understand thofe methods, which, without this help, would have appeared to them unintelligi

ble;

ble ; and by a new turn of demonstration, he makes them fenfible of the whole extent of fuch methods. There is at the end of that Work a Treatife of the exponential calculation, by Mr. Bernoulli. "Tis to be feared that the faults of impreffion will hinder that Work from being as ufeful as it might have been, if the Author himfelf had printed it. The Manuscript was not revised, and the Author did frequently fay that. he did not defign to publish it.

Another pofthumous Work of Mr. Varignon has also been printed.

Nouvelle Mechanique ou Statique, dont le Projet fut donné en 1687. Ouvrage pofthume de M. Varignon, &c. Paris: Printed for Claudius Jombert. 1725. Two Volumes in 4. pagg. 387 and 478.

"

The Author publifhed a Scheme of this Work in 1687. "Tis a new Syftem of Mechanics, grounded upon the principle of compound motions. That principle is fo copious, that for each kind of Machine there is but one general propofition: all the other properties are naturally deduced from it, and form a great number of Corollaries which contain the whole detail. a word, 'tis a complete Treatife of Mechanics: the fame principle ferves to explain the Æquilibrium of liquors.

T

LONDON.

HE following Work is in the Prefs.

In

The GRAND THEATRE of Honour, Nobility, and Chivalry. In fix parts, viz. 1. The Science of Heraldry, with a compleat Dictionary of all the terms proper thereto. 2. The Origin of

diftinctions of Honour, and the feveral degrees of Nobility, in different countries. 3. The divers Orders of Knighthood, military or honourable, an→ tient and modern. 4. A Treatise of Fufts, Tilts, Tournaments, and other martial Exercifes. 5. The Pedigrees of the Sovereigns of the world, with their Titles, Pretenfions, and Armorial Atchievements. 6. The Coats of Arms of the moft illuftrious Families in Europe, and in particular of the Nobility of Great Britain. Both in French and English. Illuftrated with above fourscore CopperPlates, curiously engrav'd. In two Volumes in 4°. By Mr. A. Boyer, Author of the Royal French and English Dictionary; and Mr. J. Innes.

The usefulness of this Work will appear by the Advertisement to be feen in the Propofals. It has been put in French and English with a double view: firft, to facilitate to the English the attainment of the French Tongue; and, in the fecond place, to make Foreigners, who for the moft part understand French, better acquainted with the illuftrious Families of Great Britain.