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The Foot-prints of the Creator
by Hugh MillerThere are chapters in this little volume which will, I am afraid, be deemed too prolix by the general reader, and which yet the geologist would like less were there any portion of them away. They refer chiefly to organisms not hitherto figured nor described, and must owe their modicum of value to that very minuteness of detail which, by critics of ..
Tractor Principles
by Roger B. WhitmanThe tractor of to-day is built in almost as many types and designs as there are tractor makers, and is far from being as standard as the automobile. There are tractors with one driving wheel, with two driving wheels, with three and with four, as well as three arrangements of the crawler principle; there are two-wheelers, three-wheelers and four-whe..
Hints to Travellers, Scientific and General, Vol. 2
by Royal Geographical SocietyThe minimum requirement of instrumental observations by a traveller is the reading twice daily of the barometer and of the dry and wet bulb thermometers, to ascertain the temperature and humidity of the air, also the reading once daily, in the morning, of the minimum thermometer which has been exposed all night, and on days in camp of the maximum t..
The Wright Brothers
by Fred C. KellyTHE aim in this book has been to satisfy the curiosity of the average, non-technical reader regarding the work of the Wright Brothers, and to do so as simply as possible. No attempt has been made to go into minute technical details. Nor does the book cover the scientific researches and numerous inventions by Orville Wright since the death of his br..
Rocks and Their Origins
by Grenville A. J. ColeThis little book is intended for those who are not specialists in geology, and it may perhaps be accepted as a contribution for the general reader. To all who are interested in the earth, the study of rocks is an important branch of natural history. If detailed works on petrology are to be consulted later, F. W. Clarke's Data of Geochemistry (Bulle..
The Chemical Constituents of Piper Methysticum
by Alice A. BallAmong the customs peculiar to the inhabitants of the South Pacific Islands, perhaps the most noted is that of the preparation and drinking of a narcotic beverage called ava, kava, or yakona. Much of its notoriety arises from the repulsive way in which it is sometimes made. Aside from this, it is characteristic of a certain oceanic area, and seems t..
The Lone Swallows
by Henry WilliamsonMost of the papers in this volume are published for the first time. A few have appeared in The Daily Express, The London Evening News, The Field, The Saturday Review, The Outlook, The English Review, and The Wide World Magazine. I am indebted to the Editors of these publications for permission to reprint them; and I am personally grateful to Sir Th..