TRINITY COLLEGE, CAMBRIDGE.

Euclid's Elements of Geometry, the First Six Books, and the portions of the Eleventh and Twelfth Books read at Cambridge, with Notes, Questions, and Geometrical Exercises, from the Senate House and College Examination Papers, with Hints, &c. By R. POTTS, M.A., Trinity College, Cambridge.

The University Edition, the Second, improved, 8vo. cloth, 10s.

The School Edition, the Fifth. 12mo. cloth, 4s. 6d. Books I-IV. 3s.; Books I-III. 2s. 6d.; Books I. II. 1s. 6d.; Book I. 18. The Enunciation of Euclid, 9d.

A Medal has been awarded to "R. Potts for the excellence of his works on Geometry" by the Jurors of the International Exhibition, 1862.-Jury Awards, p 313.

"Mr. Potts' Euclid is in use at Oxford and Cambridge, and in the Principal Grammar Schools. It is supplied at reduced cost for National Education from the Depositories of the National Society, Westminster, and of the Congregational Board of Education, Homerton College. It may be added, that the Council of Education at Calcutta were pleased to order, in the year 1853, the introduction of these Editions of Euclid's Elements into the Schools and Colleges under their control in Bengal."

Critical Remarks on the Editions of Euclid.

"In my opinion Mr. Potts has made a valuable addition to Geometrical literature by his Editions of Euclid's Elements."-W. Whewell, D.D., Master of Trinity College, Cambridge. (1848.)

"Mr. Potts has done great service by his published works in promoting the study of Geometrical Science."-H. Philpott, D.D., Master of St. Catharine's College. (1848.) "Mr. Potts' Editions of Euclid's Geometry are characterized by a due appreciation of the spirit and exactness of the Greek Geometry, and an acquaintance with its history, as well as by a knowledge of the modern extensions of the Science. The Elements are given in such a form as to preserve entirely the spirit of the ancient reasoning, and having been extensively used in Colleges and Public Schools, cannot fail to have the effect of keeping up the study of Geometry in its original purity."James Challis, M.A., Plumian Professor of Astronomy and Experimental Philosophy in the University of Cambridge. (1848.)

"Mr. Potts' edition of Euclid is very generally used in both our Universities and in our Public Schools; the notes which are appended to it shew great research, and are admirably calculated to introduce a student to a thorough knowledge of Geometrical principles and methods."-George Peacock, D.D., Lowndean Professor of Mathematics and Dean of Ely. (1848.)

"By the publication of these works, Mr. Potts has done very great service to the cause of Geometrical Science; I have adopted Mr. Potts' work as the text-book for my own Lectures in Geometry, and I believe that it is recommended by all the Mathematical Tutors and Professors in this University."-Robert Walker, M. A., F.R.S., Reader in Experimental Philosophy in the University, and Mathematical Tutor of Wadham College, Oxford. (1848.)

"When the greater Portion of this Part of the Course was printed, and had for some time been in use in the Academy, a new Edition of Euclid's Elements, by Mr. Robert Potts, M.A., of Trinity College, Cambridge, which is likely to supersede most others, to the extent, at least, of the Six Books, was published. From the manner of arranging the Demonstrations, this edition has the advantages of the symbolical form, and it is at the same time free from the manifold objections to which that form is open. The duodecimo edition of this Work, comprising only the first Six Books of Euclid, with Deductions from them, having been introduced at this Institution as a text book, now renders any other Treatise on Plane Geometry unnecessary in our course of Mathema tics."-Preface to Descriptive Geometry, &c. for the Use of the Royal Military Academy, by S. Hunter Christie, M.A., of Trinity College, Cambridge, late Secretary of the Royal Society, &c., Professor of Mathematics in the Royal Military Academy, Woolwich. (1847.)

TRINITY COLLEGE, CAMBRIDGE.

Critical Remarks on the Editions of Euclid.

"Mr. Potts, by the publication of his Edition of Euclid, with its most valuable notes and problems, and the solutions and commentaries, has recalled the attention of Englishmen to the subject:-first in his own and the Sister Universities, then in the public schools, and finally, in most Scholastic Establishments in the Country.-His Euclid is one of our own text books in the Royal Military Academy, and we find its arrangements and additions exceedingly conducive to the acquisition of a thorough understanding of the subject by the Gentlemen Cadets."-T. S. Davies, Professor of Mathematics in the Royal Military Academy, Woolwich. (1848.)

The Edition of the Elements of Euclid which Mr. Potts has published, is confessedly the best which has yet appeared."-John Phillips Higman, M.A., F.R.S., late Fellow and Tutor of Trinity College, Cambridge. (1848.)

"I am well acquainted with Mr. Potts' Editions of Euclid, and I have the greatest pleasure in certifying that I consider them superior to any I have ever seen, and so much so, that I have invariably recommended them to Students in Geometry."-Peter Mason, M.A., Head Master of the Perse Grammar School. (1848.)

"Mr. Potts has lately published an edition of Euclid's Elements of Geometry, which he has illustrated with a collection of Examples. I consider that he has performed his task with great care and judgment, and that the work seems to bid fair to possess a larger share of popular favour than any edition of Euclid yet published."-R. Buston, B.D., Fellow and Tutor of Emmanuel College. (1848.)

"I gladly embrace this opportunity of expressing the very high opinion I entertain of the merits of Mr. Potts' edition of the Elements of Euclid.”—J. P. Birkett, M.A., Fellow and Tutor of Jesus College. (1848.)

"I consider Mr. Potts' edition of Euclid to be a most valuable addition to our Cambridge Mathematical literature, and especially to the department of Geometry; and look to it as a great help towards keeping up, and indeed reviving, the true spirit and feeling for Geometry, which of late years had been too much neglected among us."W. Williamson, B.D., Fellow and Tutor of Clare College. (1848.)

"I believe there is a general opinion in this University that the Principles of Euclid and Elementary Geometry cannot possibly be presented to the mind of a commencing student in a better form, nor be accompanied by a more judicious selection of problems, with hints for their solution, than occurs in the pages of Mr. Potts' publications. By combining symmetry of arrangement with simplicity of language, and by restoring the Syllogism to its plain and simple form, so as to make an introduction to Geometry serve at the same time as an exercise in logic (an advantage which has been quite lost sight of in many of the abbreviated editions with which this University had previously been deluged), I consider that Mr. Potts has done good service to the cause of education."-J. Power, M.A., Fellow of Clare College, and University Librarian. (1848.)

"Mr. Potts has maintained the text of Simson, and secured the very spirit of Euclid's Geometry, by means which are simply mechanical. It consists in printing the syllogism in a separate paragraph, and the members of it in separate subdivisions, each, for the most part, occupying a single line. The divisions of a proposition are therefore seen at once without requiring an instant's thought. Were this the only advantage of Mr. Potts' Edition, the great convenience which it affords in tuition would give it a claim to become the Geometrical text-book of England. This, however, is not its only merit."— Philosophical Magazine, January, 1848.

"The plan of this work is excellent."-Spectator.

"If we may judge from the solutions we have sketched of a few of them [the Geometrical Exercises], we should be led to consider them admirably adapted to improve the taste as well as the skill of the Student. As a series of judicious exercises, indeed, we do not think there exists one at all comparable to it in our language-viewed either in reference to the student or teacher."-Mechanics' Magazine, No. 1175.

"The Hints' are not to be understood as propositions worked out at length,in the manner of Bland's Problems, or like those worthless things called 'Keys,' as generally 'forged and filed,'-mere books for the dull and the lazy. In some cases references only are made to the Propositions on which a solution depends; in others, we have a step or two of the process indicated; in one case the analysis is briefly given to find the construction or demonstration; in another case the reverse of this. Occasionally, though seldom, the entire process is given as a model; but most commonly, just so much is suggested as will enable a student of average ability to complete the whole solution-in short, just so much (and no more) assistance is afforded as would, and must be, afforded by a tutor to his pupil. Mr. Potts appears to us to have hit the 'golden mean' of Geometrical tutorship."-Mechanics' Magazine, No 1270.

"We can most conscientiously recommend it [The School Edition] to our own younger readers, as the best edition of the best book on Geometry with which we are acquainted."-Mechanics' Magazine, No. 1227.

TRINITY COLLEGE, CAMBRIDGE.

LIBER CANTABRIGIENSIS.

PART I. An Account of the Aids, the encouragements, and rewards offered to Students, in the University of Cambridge; to which is prefixed a Collection of Maxims, Aphorisms, &c. Designed for the Use of Learners. By ROBERT POTTS, M.A., Trinity College. Fcap. 8vo., pp. 570, bds. 4s. 6d.

"It was not a bad idea to prefix to the many encouragements afforded to students in the University of Cambridge, a selection of maxims drawn from the writings of men who have shown that learning is to be judged by its fruits in social and individual life.-The Literary Churchman.

"A work like this was much wanted."-Clerical Journal.

"The book altogether is one of merit and value."- Guardian.

"The several parts of this book are most interesting and instructive."-Educational Times.

"No doubt many will thank Mr. Potts for the very valuable information he has afforded in this laborious compilation."--Critic.

PART II. An Account of the Changes made by

recent Legislation in the Colleges, and the University of Cambridge, with an Appendix, containing the Examination Papers for the Open Minor Scholarships in 1861-1862. Fcap. 8vo., pp. 462, bds. 4s. 6d.

"We regard Liber Cantabrigiensis, Part II., as an invaluable addition to an invaluable work."-English Journal of Education.

"Mr. Potts has very meritoriously presented, in a manageable compass, not only the present code of the University and its Professorships, Scholarships, and Prizes, but also a full abstract of the Statutes of all the Colleges, with particulars of their Fellowships, Scholarships, and Exhibitions. It is a permanent Companion to the Calendar, the importance of which latter will henceforth depend chiefly on the Class lists and other lists of names."- The Reader.

The Long Bow of the Past: the Rifle for the Future; addressed to the rising Generation of the British Empire. By H. Britannicus, a friend of the Rifle Movement. Second Edition, 8vo. pp. 36, 6d.

A View of the Evidences of Christianity, and the

Hore Pauline; by William Paley, D.D., formerly Fellow and Tutor of Christ's College, Cambridge. A new Edition, with Notes, an Analysis, and a selection of Questions from the Senate-House and College Examination Papers; designed for the use of Students. By ROBERT POTTS, M.A., Trinity College. 8vo. pp. 568, price 10s. 6d. in cloth

"The theological student will find this an invaluable volume. In addition to the text there are copious notes, indicative of laborious and useful research; an analysis of great ability and correctness; and a selection from the Senate-House and College Exa nination Papers, by which great help is given as to what to study and how to study There is nothing wanting to make this book perfect."-- Church and State Gazette. "Mr. Potts' is the most complete and useful edition yet published."--Electic Review. "We feel that this ought to be henceforth the standard edition of the 'Evidences and Horæ.""-Biblical Review.

it.

"Without this volume the library of any Christian Man is incomplete."-Church of England Quarterly Review.

LONGMAN & Co., London.

Sketches of Character, and Other Pieces in Verse.

By ANNA H. POTTS. pp. 215. Fcap. 8vo. cloth. Price 4s. "Mrs. Potts' volume deserves to be recommended to persons of taste, and would prove a most acceptable Christmas offering, either to the youthful, or to those more advanced in years."-Court Journal.

"The neat little volume of Mrs. Potts, is full of tender feeling, which attracts and unites mind to mind, and heart to heart. Her poetry reminds us of the touching pieces of Mrs. Hemans; and her "Sketches of Character of the best portraits of Cowper. No one can read these sketches without having the finest sympathies aroused, and good resolutions strengthened."-Literary Gazette.

"She chiefly aims at developing the proper sphere of her sex, by pointing out the duties of women under the various circumstances in which they are placed; showing the importance of patience and forbearance, truthfulness and constancy, and a reliance upon the practical influence of religion. These topics are urged in various forms with clearness and simplicity."-Bentley's Miscellany.

"This little volume is a Collection of Poetical Effusions on subjects of universal interest. Many of them are remarkable for their graceful simplicity, and the absence of pretension, while some exhibit no inconsiderable degree of humour. The fair Authoress passes from grave to gay, from lively to severe,' with a refreshing ease, and in many passages displays much feeling on subjects of domestic interest."-Educa tional Times.

"There are many pleasing poems in this unpretending volume."-Church and State Gazette.

The

"The Sketches of Character contained in this agreeable volume may be enumerated under the heads, 'Husbands,' 'Wives,' and 'Maidens,' which are written in an easy, simple style, delineative and didactic, with some passages of satire; and to these may also be added the shorter Pieces, called 'The Sisters,' and 'The Proud.' Other peces in Verse,' are numerous and of varied kinds, playful and grave, descriptive or commemorative, sentimental or imaginative, the metrical structure various, but always easy and flowing, with a careful and accurate choice of rhymes. A deep and fervent tone of religious feeling pervades all the Pieces in which sacred thoughts are appropriate, and the moral sentiments are chaste, loving and cheerful, adorned with poetical imagery and pleasing conceptions, which are all the more effective for their simplicity.-Leeds Intelligencer.

"The accomplished authoress evidently aims at something higher than mere poetry, which, when properly understood and written, is only a means to an end; and that end is the elevation of man, as a religious, moral, and intellectual being."—Glasgow Examiner.

"In the 'Sketches of Character' there is a word of advice to each of the three classes, Husbands, Wives, and Maidens. To each class a separate poem of considerable length is devoted, and we can assure our readers, whether they are husbands, wives, or fair maidens, that each and all of them will find a lesson here from which they may derive pure and profitable instruction, inculcated in a playful and yet earnest style. We can truly say that there is not in the volume one verse which the writer will ever regret to have written or the reader to have perused.”— Glasgow Reformer's Gazette.

Simple Poems for National and Sunday-Schools. By ANNA H. POTTS. 18mo. sewed. 28. per dozen.

"Mrs. Potts possessed the happy secret of adapting her style to suit the comprehension of childhood, without becoming trivial or common-place, and we trust her work may meet with the success it so well deserves."-Lady's Newspaper.

Sold at the National Society's Depository, Westminster.

Simple Poèmes a l'usage des Ecoles Nationales du Dimanche, traduits de l'Anglais de Mrs. ANNA H. POTTS, par le Chevalier de Chatelain. Fcp. 8vo. prix 1s. 6d.

ROLANDI, No. 20, Berners Street, Londres.