APPARATUS 1. 1. Carbon-Zinc Cell. Fig. 1. If you have some rubber bands you can quickly make a cell out of rods of zinc and carbon. The rods are kept apart by putting a band, B, around each end of both rods. The bare wires are pinched under the upper bands. The whole is then bound together by means of the bands, A, and placed in a tumbler of fluid, as given in . This method does not make first-class... more...

INTRODUCTION We are constantly trying to make some sense of our world and the way people treat each other. The purpose of this book is to provide a systematic way of analyzing situations and planning actions. Sequential Problem Solving is written for those who want to reassure themselves that their thinking is logically correct rather than emotionally or impulsively misguided. It provides step by step... more...

CHAPTER I Among other public buildings in a certain town, which for many reasons it will be prudent to refrain from mentioning, and to which I will assign no fictitious name, there is one anciently common to most towns, great or small: to wit, a workhouse; and in this workhouse was born; on a day and date which I need not trouble myself to repeat, inasmuch as it can be of no possible consequence to the... more...

Foreword Here comes the English Luther in his twelfth visit to your home. In peasant boots, decorated by no star of worldliness nor even by the cross of churchliness, but by the Book from heaven pressed to his heart in a firm attitude of earnest prayer, he comes as the man of prayer and of the one Book, a familiar friend, to help you to live the simple Christian life. This volume of twenty-four... more...

CHAPTER I. INTRODUCTORY. The Sun. The sun's position in the great field of energy is daily becoming more exalted in the estimation of philosophic minds. His labors are being revealed to us with a distinctness never before conceived. He it is that stored the coal in the bosom of the earth, and piled up the polar ice. He it is that aids the chemist, drives the engine, ripens the harvest, dispenses... more...

WHAT IS A LETTER? It is not so long since most personal letters, after an extremely formal salutation, began "I take my pen in hand." We do not see that so much nowadays, but the spirit lingers. Pick up the average letter and you cannot fail to discover that the writer has grimly taken his pen in hand and, filled with one thought, has attacked the paper. That one thought is to get the thing... more...

INTRODUCTION I have called this little collection of articles which I have written “THREE THINGS” because to me there seem to be just three essentials to strive after in life. Truth—Common Sense and Happiness. To be able to see the first enables us to employ the second, and so realise the third. And in these papers I have tried to suggest some points which may be of use to others who, like... more...

ELECTRICITY AND MATTER My Dear Son: You are interested in radio-telephony and want me to explain it to you. I’ll do so in the shortest and easiest way which I can devise. The explanation will be the simplest which I can give and still make it possible for you to build and operate your own set and to understand the operation of the large commercial sets to which you will listen. I’ll write you a... more...

I Are these the only works of Providence within us? What words suffice to praise or set them forth? Had we but understanding, should we ever cease hymning and blessing the Divine Power, both openly and in secret, and telling of His gracious gifts? Whether digging or ploughing or eating, should we not sing the hymn to God:— Great is God, for that He hath given us such instruments to till the ground... more...

What is a Good Edition? A good edition should be a complete edition, ungarbled and unabridged. If the author is a classic, the format of the copy chosen should in some way represent the style of the author. Gibbon, for instance, should be in large octavo or quarto, with print of a size to correspond. This is not always possible, for English editions of books often aim at mere cheapness, and of many... more...