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LITTERARIA:

OR, AN

EXACT AND EARLY ACCOUNT

OF THE MOST

VALUABLE BOOKS

Published in the several Parts of

EUROPE.

Floriferis ut apes in Saltibus omnia libant,
Omnia nos ifidem,

Lucret.

NUMBER XIX.
Being the First of Vo L. IV.

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

street, in the Strand,

M.DCC.XXXII.
(Price One Shilling.)

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For No. XIX. 1732.
Art. I.

of Chemistry, as

both in publick and private
Lestures, by Herman Boerhaave.
Art. II. Theological Dissertations upon divers Sub-
jects, by the Reverend Mr. Holtius.

39
Art. , New Sermons on the History of tbe Pas-

fion of our Lord Jesus Christ, and other
Dic Subječts relating thereto. By Ebé a late

Reverend M. James Saurin, Minister
at the Hague.

53
Art. IV. A critical History of such superstitious

Practices, as have seduc'd the Vulgar,
and puzzled the Learned, &c. By Fa-

ther le Brun, Priest of the Orat ory. 68
Art. y. The present State of LEARING 84
From Milan. Di

ib.
From Rome.
From Venice. 10 Au 1:
From Florence.
From Mantoux.

99
From Ferrara

ib.
From Geneva,

ib.
From Neufchatel.
From Tubingen.

ib.
From Nuremberg

ib.
From Paris.
From Angers.
From the Hague.

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ARTICLE I.
Elementa Chemiæ, quæ anniversario La-

bore docuit, in publicis, privatisque,
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 second
Volume, containing the Operations of
Chemistry, in 538 Pages.

The Third and lasi Extract.

26

N

17 8 9 ).

• XV. of our Journal contains an Ac

count of the first part of this Work,

viz. The History of Chemistry ; and N° XVI. an Account of the second, or the Theory of the Art: We now proceed to the last or proper chemical Part thereof; viz. the Practice, Processes, or Operations.

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

A А

THE Vol. 117.32.

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

The Introduction complains of the confused Manner wherein the Processes of Chemistry have been generally treated ; and lays down Rules for introducing a Geometrical Method in delivering them; so 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 Mannera; and othing ever be repeated in vain. These Rules the Author professes he will carefully observe : but how far he has done it, or how far the Nature of the Thing will allow thereof, is a Point that deserves to be considered. The Affectation of a mathematical Procedure in physical Subjects, is apt to mislead; unless great Caution and Circumspection be used. And in this View, it might be ask'd whether the sixth, the eighth, the tenth, the twelfth, the sixteenth, Seventeenth, nineteenth, twenty second, twenty-fourth, twenty-sixth, twenty-leventb, twenty-eighth, thirtieth, thirty-first, fortyfirst, forty-fourth, forty-sixth, fifty-fourth, fiftysevenih, fifty-eighth, fifty-ninth, Sixtielb, Jixiyfirst, fixty-tbird, fixty-ninth, seventieth, seventyfirst, seventy-second, eightieth, eighty-tbird, eightyfourth and eighty - fixth Processes of the first 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, unnecessary and cumbersome,

& Lege Hippocraticâ, p. 2.

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in delivering the Elements of Chemistry, in a
Geometrical, or if you please, Hippocratical
Manner. This however is a laudable Attempt
to throw off the dark Disguise and Embaras-
ment of the Chemical Writers, and introduce
an intelligible Manner in its stead, wherein
we cou'd wish the Author's Success had been
equal to his View.

He proceeds to shew the Reasons why he begins
his Chain of Processes with Vegetables ; viz.because
molt Animals are composed thereof; and because
they more easily undergo a chemical Analysis,
on account of their greater Simplicity of Parts.
He allows indeed that Minerals are still more
fimple ; but then their Treatment requires
more secret Arts, less known Instruments, and
lefs obvious Operations ; whence his Law of
Method directs him to begin with Vegetables,
proceed with Animals, and conclude with Mi-
nerals

A Chemical Operation he now again defines Chemical to be the Change of a Body, by means of the Che-Operation

defined. mical Instruments, to an End prescribed by the Laws of the Arti

He goes on to settle the Conditions, or Re- The Condiquisites, of the first Operation, in an elementary tions of the Course of Chemistry and lays down, that it forft Process shou'd be easy, simple, not attended with any great Change of the Subject ; and be rather a sem paration than an Alteration : so as to leave the Subje&t capable of being restored to itself, by a Reanion of its separated Parts.

A 2

IN 2 Oportebit enim primò follicitè cavere, ne frustra quid Keret in hisce: quid coim fupervacaneum magis, quam se. petere decies, per exempla novi Operis, quae una Operatione Patis demonstrantur? p. 2.

c See No. XVI. of our Journal, p. 349, Pag. 3, 4. See the firát Process hereafter.

Pag. 3. and 356.

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