Explore our curated list of farming and tractor history books.
<p>Learn everything you need to know about growing and harvesting apples with this comprehensive guide from the International Library of Technology. From choosing the right varieties to dealing with pests and diseases, this book covers all aspects of apple cultivation. Packed with helpful illustrations and practical advice, this guide is a must-have for anyone interested in fruit growing.</p><p>This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it.</p><p>This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.</p><p>Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.</p>
View Details
<p>Learn everything you need to know about growing and harvesting apples with this comprehensive guide from the International Library of Technology. From choosing the right varieties to dealing with pests and diseases, this book covers all aspects of apple cultivation. Packed with helpful illustrations and practical advice, this guide is a must-have for anyone interested in fruit growing.</p><p>This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it.</p><p>This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.</p><p>Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.</p>
View Details
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.<br><br>This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.<br><br>As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
View Details
This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1913 Excerpt: ...OF FROST INJURIES 8. More or less moisture always exists in the atmosphere in the form of an invisible vapor. When this invisible vapor is condensed by a falling temperature, clouds, or fogs, are formed; if the moisture in the clouds is further condensed at a temperature above the freezing point rain is formed; and if condensed at a temperature at or below the freezing point snow is formed. If the moisture of the atmosphere that is in immediate contact with the surface of the earth is condensed at temperatures above the freezing point, dew is formed, and if this moisture is condensed at or below a freezing temperature frost is formed. Frost is, therefore, the moisture of the air condensed at or below 32 F. on the surface of the earth or on plants or other objects. 9. Prediction of Frost.--The conditions under which damaging frosts may occur are so numerous and varied that it is very difficult to tell when frosts will occur and when they will not. However, frost may be expected during the night if, at nightfall, the dew point is 42 F. or less. The dew point is the temperature of the air at which dew is deposited. And when the dew point falls to 32 F. or lower, frost will occur. The dew point is determined by means of wetbulb and dry-bulb thermometers and a specially prepared table known as a dew-point table. The most accurate kind of an instrument for the determination of the dew point is shown in Fig. 4 (a), and is known as a sling psychrometer. This instrument consists of a wetbulb and a dry-bulb thermometer, securely fastened to a support, which, in turn, is attached to a handle in such a way that the thermometers and their support may be whirled on one end of the handle. A case in which the sling psychrometer may be kept while not in use is shown in (b)....
View Details