Non-Classifiable Books

INTRODUCTION Because of the rapid increase in knowledge about precious stones on the part of the buying public, it has become necessary for the gem merchant and his clerks and salesmen to know at least as much about the subject of gemology as their better informed customers are likely to know. In many recent articles in trade papers, attention has been called to this need, and to the provision which... more...

CHAPTER I. INTRODUCTORY. Assaying has for its object the determination of the quantities of those constituents of a material which add to or detract from its value in the arts and manufactures. The methods of assaying are mainly those of analytical chemistry, and are limited by various practical considerations to the determination of the constituents of a small parcel, which is frequently only a few... more...

United States New York, with over 5,000,000 inhabitants, has no effective market system. The buildings are out of repair, there is little or no organization, and the superintendent has testified before the New York Food Investigation Commission (March 12, 1912) that on their administration last year there was a loss to the city treasury of $80,000. To that must be added due consideration of the... more...

Part First. THE USE OF THE BLOWPIPE. Perhaps during the last fifty years, no department of chemistry has been so enriched as that relating to analysis by means of the Blowpipe. Through the unwearied exertions of men of science, the use of this instrument has arrived to such a degree of perfection, that we have a right to term its use, "Analysis in the dry way," in contradistinction to analysis... more...

ADVERTISEMENT. The following observations were thrown together as the result of communications with several gentlemen locally acquainted with the Isthmus of Panama, and who expressed to the writer their astonishment, that amidst the numerous undertakings, of more or less utility, which science has realised in our time, one so important to the whole commercial world, so easy of accomplishment, and so... more...

CHAPTER I. INTRODUCTION. I propose in this book to describe a few of the more important earthquakes that have occurred during the last half century. In judging of importance, the standard which I have adopted is not that of intensity only, but rather of the scientific value of the results that have been achieved by the study of the shocks. Even with this reservation, the number of earthquakes that... more...

HABITATIONS AFFECTED BY ENVIRONMENT. It is conceded that the peculiarities of a culture-status are due chiefly to the necessities encountered during its development. In this sense the Pueblo phase of life was, like the Egyptian, the product of a desert environment. Given that a tribe or stock of people is weak, they will be encroached upon by neighboring stronger tribes, and driven to new surroundings... more...

INTRODUCTION. The investigation, the results of which are reported in this bulletin, was undertaken for the purpose of securing information in regard to the composition of brewery products made in this country. The main object of this investigation was to find, if possible, a means of distinguishing beers and ales made entirely from malt from those made from malt together with other cereal products,... more...

Chapter I: Concerning One's Letter Box Publish any sort of conviction related to these morose days through which we are living and letters will shower upon you like leaves in October. No matter what your conviction be, it will shake both yeas and nays loose from various minds where they were hanging ready to fall. Never was a time when so many brains rustled with hates and panaceas that would sail... more...

EARLY HISTORY "I have lived much that I have not written, but I have written nothing that I have not lived." It was a little blue-eyed girl of ten who sat on a low hassock at my feet, slowly drawing the soft auburn curls between her fingers, when, suddenly lifting her head and looking me earnestly in the face, she exclaimed: "What is the Red Cross? Please tell me about it; I can not... more...