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TABLE OF CONTENTS.

PREFACE.

Respecting the Gradations in Euclid's Plane Geometry, Skeleton
Propositions, &c. ..........

INTRODUCTION.

SECTION I. Gradual Growth of Geometry and of the Elements of

Euclid

SECTION II. Symbolical Notation and Abbreviations that may be used

PAGES.

iii. - viii,

1-5

5-7

SECTION III. Explanation of some Geometrical Terms..
SECTION IV. Nature of Geometrical Reasoning.....

7-10

J0-20

SECTION V. Application of Arithmetic and Algebra to Geometry...
SECTION VI. On Incommensurable Quantities......
SECTION VII. On Written and Oral Examinations and Means of

21-27 28-30

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The Properties of Right-angled Parallelograms or Rectangles......... 149
Definitions and Axiom

Propositions i. — xiv.

Remarks

Synopsis of Book II..

PRACTICAL RESULTS.

150

150-185 185

186-190

I. Problems 5-16, for the Construction of Geometrical Figures
stated, and proved in Books I. and II....
Subsidiary Problems, 17 - 31, in Books I. and II.

191-197

....... 197–201

II. Problems in Books III., IV., and VI. most intimately connected with Books I. and II.:

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III. Principles of Construction :

SECTION 1. For Geometrical Instruments to Measure Distances

and Angles

SECTION 2. For Geometrical Figures to exhibit representative
values of Magnitude and Space...

IV. Principles for accurately calculating Distances, Magnitudes,
and Areas:-

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211-212

212-215

215
216
216

.........

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Theorems in Book II. 1-6

SERIES 2° Propositions not fully proved, or not inserted in

the Gradations :

Problems. Book I. 1-13..

Theorems.-Book I. 1-15..

Problems.-Book II. 1-10..

Theorems.-Book II. 1-15..

230

231

232

232

"Even the Sleeping Geometrician," says old RALPH CUDWORTH, p. 160, "hath at that time, all his Geometrical Theorems and Knowledges some way on him as also the Sleeping Musician, all his Musical Skill and Songs: and therefore why may it not be possible for the Soul to have likewise some Actual Energie on it, which it is not Expressly Conscious of ?"

John Heywood, Printer, 141 and 143, Deansgate, Manchester.

In Three Parts, 4to. at 6d. each Part.

SKELETON PROPOSITIONS TO EUCLID,

BOOKS I AND II.

FOR PEN-AND-INK EXAMINATIONS.

N.B.-The SKELETON PROPOSITIONS may be had either with or without References,stitched in a cover, or collected into a case in sheets.

Price 4d.,

Exercises for the First and Second Books of Guclid;

BEING THE

APPENDIX TO THE GRADATIONS IN EUCLID :

Containing GEOMETRICAL ANALYSES and GEOMETRICAL

EXERCISES; with

an EXPLANATORY PREFACE respecting the SKELETON PROPOSITIONS.

Price 6d.,

KEY TO EXERCISES

FOR THE FIRST AND SECOND BOOKS OF EUCLID.

CRITICAL NOTICES.

"Mr. Green's 'Gradations' is a valuable work, though it takes in only the first two books of Euclid. Without endorsing all the detail, which we have not had time to examine, we may unhesitatingly speak in praise of the method, which we have examined with care. No introductory Euclid which has fallen in our way contains anything like the help, in the shape of notes and arrangement, that this does." "The whole of the propositions are arranged after the manner recommended by Professor De Morgan, in his Treatise on the Study and Difficulties of Mathematics.' To many of the propositions is appended an account of the practical uses to which the proposition may be applied. An Appendix is added, which contains much that is useful in the way of notes and exercises. We feel sure that schoolmasters will largely patronise Mr. Green's 'Gradations in Euclid,' as a very complete apparatus for teaching the First and Second Books."-Papers for the Schoolmaster, July, 1858, p. 112.

"We commend the work to the consideration of Teachers."-Athenæum, July 17, 1858. "By printing the distinct parts of the propositions separately a very great help is gained, and the principles more thoroughly learned."-The Bookseller, July 24, 1858.

"This is a useful book; in fact, the best introduction to Euclid with which we are acquainted, and we heartily recommend it to the favourable notice of our readers. Its main object is to combine theory with practice, and so soon as a geometrical truth has been established, to point out its use and application."-The School and the Teacher, August, 1858.

"Mr. Henry Green, A.M., has published the first and second books of Euclid, for pupilteachers and others. We recommend this as a very useful work introductory to plain geometry, and one which may be put into the hands of either schoolboys or adult mechanics with great advantage."-Manchester Guardian, Dec. 2, 1858.

Also, Price 4s. 6d.,

EUCLID'S PLANE GEOMETRY,

Books II.-VI., OR GRADATIONS IN EUCLID, PART II., WITH ALGEBRAICAL AND ARITHMETICAL ILLUSTRATIONS, EXPLANATORY NOTES, AND A SYNOPTICAL INDEX TO THE SIX BOOKS, SHOWING THE USES OF THE PROPOSITIONS, &c.

School Books published by John Heywood.

HOME EXERCISES.

WILLIE'S HOME EXERCISES.

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Embraces the First Half of Part I., adapted to Standards I. and II.

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Embraces the Second Half of Part I., adapted to Standard III.
Threepence; or Cloth Limp, Fourpence.
PART I.

This contains a systematic and graduated Series of Exercises in the
Simple Rules of Arithmetic, Spelling, and Composition, for Home
Practice. It is adapted to Standards I., II., and III. of the Revised
Code.

Stiff Paper Covers, price Fourpence; Cloth, Sixpence.

With 9 plain

Maps, Cloth, Tenpence; with 9 coloured Maps, strongly bound and gilt lettered, One Shilling and Fourpence.

PART II.

This is a systematic and graduated Series of Exercises in the Compound Rules, Proportion, Practice, Spelling, Composition, Grammar, and Geography, for Home Practice.

In Parts I. and II., Sixpence,

ANSWERS TO

ARITHMETIC.

LESSON SHEETS.

One Penny each.

JOHN HEYWOOD'S EDUCATIONAL LESSON SHEETS.

1. The Alphabet.

2. Words of Two Letters.

3.

4.

Three
Four

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FIRST SERIES.

6. Sentences in Words of One Syllable.

7. Sentences in Words of One or Two Syllables.

5. Short Sentences in Words of 8. Spelling Words of One Syllable.

One Syllable.

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School Books published by John Heywood.

'SCIENCE.

Two Shillings and Sixpence, Cloth, Gilt Lettered, pp. 220. THE NEW "CLASS-BOOK OF MODERN

SCIENCE:"

An Introduction to the Leading Principles and Phenomena of Physical Science. With Familiar Illustrations.

By the Authors of "Class-Book Science-Readings," "Smaller ClassBook of Modern Science," "Class-Book of Roman History, &c.

"A powerful instrument in the hands of a good Teacher. Unscientific adults will not find anything better.—ATHENEUM of May 9th, 1868.

"A Teacher writes "Works first-rate in Class, and the boys are delighted with it" Another Teacher says "I have forty copies in use in my school; the boys are enraptured with it."

Two Shillings and Sixpence, Cloth, Gilt Lettered, pp. 220. CLASS-BOOK SCIENCE-READINGS:

SELECT LESSONS IN PHYSICAL SCIENCE

For the Upper Forms in Higher and Middle-Class Schools. By the Authors of "Class-Book of Modern Science," "Smaller Class-Book of Modern Science," "Class-Book of Roman History," &c. "If such a book had been put into our hands when at School, or just when the aspirations of knowledge were kindling within us, we should have regarded ourselves as having found an inestimable treasure..-METHODIST N. C. MAGAZINE, June, 1869.

One Shilling and Sixpence, Cloth, Gilt Lettered.

SMALLER CLASS-BOOK OF MODERN SCIENCE.

By the Authors of "Class-Book of Modern Science," "Class-Book ScienceReadings, Select Lessons in Physical Science," "Class-Book of Roman History." &c.

One Penny.

COPY-BOOK PROTECTOR.

The above is in the form of a Wallet, and for keeping Copy and Exercise Books straight and clean is indispensable.

LONDON SIMPKIN, MARSHALL, & CO.

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