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LITTERARIA:

OR, AN

EXACT AND EARLY ACCOUNT

OF THE MOST

VALUABLE BOOKS

Publifhed in the feveral Parts of
EUROPE.

Floriferis ut apes in faltibus omnia libant,
Omnia nos itidem,

Lucret.

NUMBER XIX.
Being the First of VOL. IV.

LONDON:
Printed for N. PREVOST, over-against Southampton-

Street, in the Strand,

M.DCC.XXXII.

(Price One Shilling.)

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Art. I.

For No. XIX. 1732.

HE Elements of Chemistry, as

Lecture, both in publick and private

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I

Lectures, by Herman Boerhaave. Art. II. Theological Differtations upon divers Subjetts, by the Reverend Mr. Holtius.

39

Art. I. New Sermons on the History of the Palfion of our Lord Jefus Chrift, and other Subjects relating thereto. By the late Reverend M., James Saurin, Minister at the Hague.

53

Art. IV. A critical History of fuch fuperftitious Practices, as have feduc'd the Vulgar, and puzzled the Learned, &c. By Father le Brun, Priest of the Orat ory. 68

Art. Y. The prefent State of LEARING
V.
From Milan 3d M

From Rome.

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From Venice. of agric

84

ib.

96

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LITTERARIA.

ARTICLE I.

Elementa Chemiæ, quæ anniverfario Labore docuit, in publicis, privatifque, Scholis, Hermannus Boerhaave. Tomus Secundus, qui continet Operationes Che

micas.

That is,

The Elements of Chemistry, as taught, both in publick and private Lectures, by Herman Boerhaave: The fecond Volume, containing the Operations of Chemistry, in 538 Pages.

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The Third and laft Extract.

XV. of our Journal contains an Account of the firft Part of this Work,

viz. The History of Chemistry; and No XVI. an Account of the fecond, or the Theory of the Art: We now proceed to the laft or proper chemical Part thereof; viz. the Practice, Proceffes, or Operations.

THIS Part is delivered under five general Heads, or Sections; viz. (1) Prolegomena, or Introduction; (2) Proceffes upon Vegetables; (3) Proceffes upon Animals; (4) Proceffes upon Minerals; and (5) what the Author calls a Recapitulation.

No. XIX. 1732.
VOL. IV.

Α

THE

THE Introduction contains 13 Pages; the Proceffes upon Vegetables 280; those upon Animals 87; thofe upon Minerals 148; and the Recapitulation 10. The Number of Proceffes upon Vegetables is 88; upon Animals 39; upon Minerals 100 in all 227.

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THE Introduction complains of the confused Manner wherein the Proceffes of Chemistry have been generally treated; and lays down Rules for introducing a Geometrical Method in delivering them; fo that one Operation may continually lead to another, in the Order of Mathematicians; or, as the Author is pleased to express it, in the Hippocratical Manner; and nothing ever be repeated in vain. Thefe Rules the Author profeffes he will carefully obferve but how far he has done it, or how far the Nature of the Thing will allow thereof, is a Point that deferves to be confidered. The Affectation of a mathematical Procedure in phyfical Subjects, is apt to mislead; unless great Caution and Circumfpection be used. And in this View, it might be ask'd whether the fixth, the eighth, the tenth, the twelfth, the fixteenth, Seventeenth, nineteenth, twenty Second, twenty-fourth, twenty-fixth, twenty-feventh, twenty-eighth, thirtieth, thirty-first, fortyfirft, forty-fourth, forty-fixth, fifty-fourth, fiftyfeventh, fifty-eighth, fifty-ninth, fixtieth, fixtyfirst, fixty-third, fixty-ninth, feventieth, Seventyfirft, feventy-fecond, eightieth, eighty-third, eightyfourth and eighty-fixth Proceffes of the firft eighty-eight upon Vegetables, to mention no more, ought not by the Author's own Rules and Laws of Method, to have been omitted, as fuperfluous, unneceffary and cumberfome,

Lege Hippocraticâ, p. 2.

in delivering the Elements of Chemistry, in a Geometrical, or if you pleafe, Hippocratical Manner. This however is a laudable Attempt to throw off the dark Difguife and Embaraffment of the Chemical Writers, and introduce an intelligible Manner in its ftead; wherein we cou'd with the Author's Succefs had been equal to his View.

He proceeds to fhew the Reasons why he begins his Chain of Proceffes with Vegetables; viz.because moft Animals are compofed thereof; and because they more eafily undergo a chemical Analyfis,, on account of their greater Simplicity of Parts. He allows indeed that Minerals are ftill more fimple; but then their Treatment requires more fecret Arts, less known Inftruments, and lefs obvious Operations; whence his Law of Method directs him to begin with Vegetables, proceed with Animals, and conclude with Minerals "

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A Chemical Operation he now again defines AChemical to be the Change of a Body, by means of the Che-Operation mical Instruments, to an End prescribed by the defined. Laws of the Art “.

He goes on to fettle the Conditions, or Re- The Condiquifites, of the firft Operation, in an elementary tions of the Courfe of Chemistry and lays down, that it firft Procefs fhou'd be easy, fimple, not attended with any great Change of the Subject; and be rather a Separation than an Alteration: So as to leave the Subject capable of being restored to itself, by a Reunion of its feparated Parts.

A 2

IN

a Oportebit enim primò follicitè cavere, ne fruftra quid feret in hifce: quid enim fupervacaneum magis, quam re petere decies. per exempla novi Operis, quæ una Operatione fatis demonftrantur? p. 2.

Pag. 3.

and 356.

See No. XVI. of our Journal, p. 349,
Pag. 3, 4. See the firft Procefs hereafter.

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