The book has been written for college Freshmen, and, as its title implies, it is intended to serve as an introduction to general chemistry. In consequence we have aimed to present a continuous and connected story in teachable form and have not attempted to give extensive descriptive and numerical data where such matter is of little interest to the student or is not needed for the development of important principles.

Inasmuch as the choice and arrangement of topics in the earlier part of this...

Oliver Cromwell (1599 – 1658) was an English military and political leader and later Lord Protector of the Commonwealth of England, Scotland and Ireland. Born into the middle gentry, Cromwell was relatively obscure for the first 40 years of his life. After undergoing a religious conversion in the 1630s, he became an independent puritan, taking a generally tolerant view towards the many Protestant sects of his period.

An intensely religious man—a self-styled Puritan Moses—he fervently be...

Art, with its finite means, cannot hope to record the infinite variety and complexity of Nature, and so contents itself with a partial statement, addressing this to the imagination for the full and perfect meaning. This inadequation, and the artificial adjustments which it involves, are tolerated by right of what is known as artistic convention; and as each art has its own particular limitations, so each has its own particular conventions. Sculpture reproduces the forms of Nature, but discard...

Special attention has been paid to the requirements of the College Entrance Board. The book contains more material than is required for some first courses in Trigonometry, but the matter has been so arranged that the teacher can make such omissions as will suit his particular needs.

The trigonometric functions are defined as ratios; first for acute angles in right triangles, and then these definitions are extended to angles in general by means of coordinates.

The student is first taught to...

In this second illustrated and including "added map" book (Volume-II)

contains belove ancient cities;

I. MESSENE

II. MYCENÆ

III. MILETUS

IV. NAUPLIA

V. NEMEA

VI. NINEVEH

VII. NUMANTIA

VIII. OLYMPIA

IX. PUTEOLI

X. PALMYRA (TADMOR)

XI. PATRÆ

XII. PELLA

XIII. PERGAMUS

XIV. PERSEPOLIS

XV. PETRA (WADY MOUSA)

XVI. PHIGALIA

XVII. PLATÆA

XVIII. PÆSTUM

XIX. POMPEII

XX. RAMA

XXI. ROME

XXII. SAGUNTUM

XXIII. SAIS

XXIV. SAMARIA

XXV. SAPPHURA

XXVI. SARDIS

XXVII. SELEUCIA

XXVIII. SELINUS, OR SELINUNTUM

...

It was about sixty years ago when there appeared the first glimmerings Of the knowledge which has since ripened into that which we now possess, that neither the molecules of any natural object nor the parts Of which those molecules consist are ever at rest; that, on the contrary, swift and orderly movements are ever in progress among them and within them; and that where bodies appear to us to be stationary, it is only be cause this great internal activity is on too small a scale, the parts mo...

In preparing this book, the author had especially in mind classes in the upper grades of grammar schools, though the work will be found equally well adapted to the needs of any classes of beginners.

The ideas which have guided in the treatment of the subject are the following:

The study of algebra is a continuation of what the pupil has been doing for years, but it is expected that this new work will result in a knowledge of general truths about numbers, and an increased power of clear thinking.

All the differences between this work and that pursued in arithmetic may be traced to the introduction of two new elements, namely, negative numbers and the representation of numbers by letters. The solution of problems is one of the most valuable portions of the work, in that it serves to develop the thought-power of the pupil at the same time that it broadens his knowledge of numbers and their relations. Powers are developed and habits formed only by persistent, long-continued practi...

An Inquiry into the Nature and Causes of the Wealth of Nations, generally referred to by its shortened title The Wealth of Nations, is the magnum opus of the Scottish economist and moral philosopher Adam Smith. First published in 1776, the book offers one of the world's first collected descriptions of what builds nations' wealth, and is today a fundamental work in classical economics. By reflecting upon the economics at the beginning of the Industrial Revolution, the book touches upon such br...

Contantinople, the capital, has a population (probably) of a million and a quarter of in-habitants, or about that of Philadelphia. Among the other important towns in European Turkey are Saloniki, an important shipping centre, with 105,000 inhabitants; Adrianople, which has had a large domestic traffic since the completion of the railway to Northern Europe.

IT is important for purposes of reference, if not directly interesting, to relate so much of Ottoman history as may be necessary for the ...

The materials for the sketch of this astonishing man are sufficiently abundant. We make special use in this place of those charming letters which his daughter wrote to him from her convent home. More than a hundred of these have been preserved, and it may well be doubted whether any more beautiful and touching series of letters addressed to a parent by a dearly loved child have ever been written. An admirable account of this correspondence is contained in a little book entitled "The Private L...