Whole, we hope we may be allowed, with great Propriety, to give
this Part the Title of the YOUNG GENTLEMAN AND LADY'S
PHILOSOPHY.

II. The fecond Part of our Work will confift of an entire Sy-
ftem of the natural Hiftory of the World, or fo much of the
Knowledge of the natural Productions of the Earth and Sea as
we have hitherto been able to discover; and here our Subject will
naturally divide into feveral general Heads, viz. First, the Si-
tuation, Extent, Soil, Produce, Climate, Air, Length of Days
and Nights, &c. of each respective Country, the Difpofition and
Genius of the Inhabitants, their Cuftoms, Manners, Language,
c. Secondly, every thing remarkable in, and peculiar to each

Country, with respect to their Beafts, Birds, Reptiles, In-

fects, and Fifhes in the Seas contiguous. Thirdly, their Moun-

tains, Springs, Rivers, and mineral Waters. Fourthly, every

thing confiderable in regard to vegetable Productions, relating to

Trees, Shrubs and Plants. Fifthly, Mines, Ores, Minerals,

Foffils, Marcafites, Stones, Earths, Marls, &c. in short, every

thing that History and our own Obfervations can furnish, deferv-

ing the Reader's Notice, relating to the Animal, Mineral, and

Vegetable Kingdoms, Upon these Subjects we shall confult only

fuch Authors whofe Veracity and Credit is unquestionable, and

where ever the Narrative is wonderful, we are fatisfied it is true;

and this we shall be particularly careful about, as it is but too

well known how much the World has been impofed upon by fa-

bulous and falfe Accounts of Things in the Writings of antient

and modern Naturalifts; things enough will be found, not only

to amufe our Readers, but to excite their Admiration and Sur

prize, without having recourse to the low Arts of Imposture,

Frauds and Falfity. Upon the Whole, we fhall endeavour to pre

fent the Reader with fuch a Body of natural History, both of our

own and other Countries, as fhall have nothing but the Marks of

Simplicity and Truth to recommend it.

III. The third great Part of our Plan is intended to confift of a

compleat Body of Arts and Sciences which are not Mathematical,

fuch as Natural Theology; Ethics, or Morality; Revealed Religion ;

Paganifm, Mythology, Grammar, Rhetoric, Logic, Metaphyfics; Poe-

try, Geography, Chronology, Hiftory, Phyfiology, Botany, Chemi-

Ary, Pharmacy, Phyfic; Anatomy, Mineralogy, Metalurgy, and

many

many other Branches of manual and commercial Arts, Trades,
and Manufactures.

These different Kinds of Knowledge we shall treat of in the

most natural, methodical and concife Manner, according to the

most approved Authors, and the best Theories that our present

State of Learning will furnish, and shall venture in many Places

to make no fmall Innovations, by adding many things new, and

retrenching all the fuperfluous Parts of the old Systems; and by

this Means fhall endeavour to exhibit every Science in its pro-

per and native Light: They will here no longer appear in their

dry fcholaftic Forms, but in all the beautiful Simplicity that the

genuine Principles of real Science can give them. We need not

here expatiate on the Utility of these Branches of Knowledge,

fince it is well known, that in all Ages, and in every Nation,

they have made the principal Part of Learning, diftinguished by

the Title of the Belles Lettres, though far fhort of that Perfection

to which they have attained in the present Age, and in our own

Nation in particular, thefe Sciences ftill farther recommend them-

felves by the Plainnefs of their Principles, and being fo eafily under-

ftood; particular Talents for other Sciences are required, but these

are equally adapted to every ingenious Mind, and ought to be the

Study of the Gentleman as well as the Scholar, fince they make.

the great and fubftantial Part of what we properly understand by

a polite and genteel Education. In the last Place, it must be ob-

ferved, that these Sciences are not only useful to Mankind in

general, but many of them fuch as are abfolutely neceffary; for

what is Man without the Knowledge of Religion? Without the

inftructed Faculty of Reasoning? Without the Art of speaking,

properly and writing gracefully? Without the Knowledge of paft

Times and Events? Or without Skill in the fundamental Arts

and Profeffions? From all which we may juftly infer, that these

are true and real Sciences, and greatly dignify human Nature.

IV. The fourth great Part will confift of a continued Series of

mathematical and mechanical Inftitutes or Principles of geome-

trical Science, beginning with thofe that are the most fimple

and easy, and proceeding to the more compounded and fublime :

our Readers therefore will excuse our presenting them in the

firft Place with the Rules of common Arithmetic, Vulgar and

Decimal, as they are the firft Principles of all mathematical

Science;

Science; we then shall lay down a Compendium of Logarithms,

whose Uses are well known to every ingenious Philomath; after

these follows the Analytic Art, or the Principles and Rules of Al-

gebra, then the Theorems and Problems of common Geometry in a

new and concise Method; we shall then deliver the Properties of the

Conic Sections, viz. the Ellipfis, Parabola and Hyperbola. To this

will fucceed the Doctrine of the Sphere, or the Principles of fphe-

riçal Geometry. After this, we propofe an extenfive View of the

new Mathefis, which may properly be called the Newtonian Ge-

ometry, as it principally confifts in the Doctrine of FLUCTIONS,

which was entirely the Invention of Sir Ifaac Newton, and from

which the mathematical Sciences received their highest Perfection

and their final Improvement. From the Inftitutions of common Ge-

ometry, confidered as the Theory, we fhall deduce a regular Praxis,

or Syftem of mathematical Sciences, fuch as Menfuration of Su-

perficies and Solids; of Heights, Depths and Distances; Gauging,

Surveying; Navigation, in feveral Kinds, plain and spherical Tri-

gonometry; the Rules of Perspective; Projection of the Sphere;

the Art of Dialing; Aftronomy; the Principles of Mechanics, &c.

with a practical Application in all the useful Parts of Business. And

from the Inftitutions of the New or Fluxionary Geometry we shall

give the Solution and Application of all the grand Problems rela-

ting to the Quadrature of curvilined Spaces, the Cubature of So-

lids, the Rectification of Curve Lines; the Method de Maximis

and Minimis, of drawing Tangents to Curves; of finding the Ra-

dius of Evolution; of finding the Points of Inflection and Retro-

greffion in Curves; of finding the Centers of Gravity and Per-

cuffion; the Laws of Elaftic and Non-elaftic Bodies; of the Ve-

locity, Times and Spaces described by Bodies in Motion; the

Laws of Refiftance in Fluids; the Doctrine of circular Motions

and central Forces; the Doctrine of Projectiles in Vacuo, and in

refifting Mediums; the Theory of Catoptrics and Dioptrics; the

phyfical Part of Aftronomy, and various other Subjects, which only

this Sort of Geometry can reach, all which will be treated of in as

plain and eafy a Manner as the Nature of them will admit, and in

a Method in many refpects quite new.

V. The Thing we have next in View is to entertain our Rea-

ders with every thing curious and worth their Notice, commu-

nicated by any ingenious Correfpondent, whofe Lucubrations or

2

Effay's

Effays in any Branch of Science, Wit, Humour, or Business, will be acceptable, and thankfully received for that Purpofe; many things in a mifcellaneous Way may by this Means' be conveyed with great Advantage to the Public; the Divine, the Mathematician, the Philofopher, the Gentleman, the Ladies of Helicon and Parnaffus, the Critic, the Hiftorian, the Antiquarian, the Merchant, the Mechanic, and the Manufacturer, may here find an Opportunity every Month of communicating their Thoughts for the Entertainment and Inftruction of Mankind; and every fuch Contributor fhall have the Credit and Honour of his Invention and Performance fecured to him by affixing his Name thereto if he chufes it, and though we shall take Occasion now and then to tranfcribe fuch Things as we think proper for our Purpose from Pieces already in print, we shall at the fame Time take particular Care to let the World know to whom they are indebted for it.

VI. In the last Place, our Magazine will conclude with an historical and chronological Memoir of all public Events of the past Month worthy Notice; the State of our own and other Nations will here appear; the Births, Marriages, Promotions, Deaths, &c. of all illuftrious Perfons, will be commemorated, as well as the great Actions and Virtues that raised them to public Notice, and distinguish them from the rest of Mankind. A regular Account of Books published Abroad and at Home, with a short Account of the Contents of fuch as deferve it. The Prices of Stocks and Goods at the Keys in London and Country-markets, with every other important Article of public Intelligence.

To conclude, no Expence of Copper-plates, Diagrams, or Cuts will be spared for illuftrating the several Parts of this Work, nor will the Public be troubled with any that are trivial or uselefs. The Materials for this Work have been long compiled and often revised and altered-we hope for the beft. In many Parts of the Work, the Reader will meet with the Generality of Inftruments either quite new, or differently conftructed from those hitherto publifhed. The Subject-matter in many Places is alfo quite new, as well as the Method of reprefenting it. The Pages of each Half-fheet will be properly numbered for binding up each respective Subject. In fhort, the Whole will be a compendious View of the Learning of the prefent Age in all its numerous Branches, which we fhall conftantly endeavour to execute to

the

the best of our Abilities. To conclude, That nothing may be wanting to make every thing agreeable as well as ufeful, a new and elegant Letter has been caft for this Work, good Paper provided, and the best Engravers engaged. We hope every future Number will convince the Public, we aim at the greatest Perfection that can poffibly be attain'd to in such a Work, and we defire their Acceptance of our Labours only in Proportion to the Merits of the Performance, which will fufficiently recompence their

Moft Obedient,

Humble Servant,

B. MARTIN.