Nature Books

IN 1949, for the Museum of Natural History of the University of Kansas, Mr. John A. White collected two specimens of the species Microtus montanus in the Bitterroot Valley of Montana, that did not fit the description of any named subspecies. These were laid aside until we could examine the additional specimens from Montana in the Biological Surveys collection in the United States National Museum, some... more...

PREFACE. There is no lack of good manuals of botany in this country. There still seems place for an adequately illustrated book of convenient size for field use. The larger manuals, moreover, cover extensive regions and sometimes fail by reason of their universality to give a definite idea of plants as they grow within more limited areas. New England marks a meeting place of the Canadian and... more...

CHAPTER I. VIOLA. 1. Although I have not been able in the preceding volume to complete, in any wise as I desired, the account of the several parts and actions of plants in general, I will not delay any longer our entrance on the examination of particular kinds, though here and there I must interrupt such special study by recurring to general principles, or points of wider interest. But the scope of... more...

CHAPTER I HOW TREES GROW AND MULTIPLY   The trees of the forest grow by forming new layers of wood directly under the bark. Trees are held upright in the soil by means of roots which reach to a depth of many feet where the soil is loose and porous. These roots are the supports of the tree. They hold it rigidly in position. They also supply the tree with food. Through delicate hairs on the roots, they... more...

Our Pretty Dragon Flies Come, children; come with me. Come to a pond I know of. See how the water shines in the sun. Over there is an old log lying on the edge of the pond. It is covered with green moss, and a green frog is sitting on one end of it. Let us go and sit on the other end. Goop! he says, and—plump! he has jumped into the water. That is too bad, frog; we did not mean to disturb you. How... more...

Chapter I How To Identify Trees There are many ways in which the problem of identifying trees may be approached. The majority attempt to recognize trees by their leaf characters. Leaf characters, however, do not differentiate the trees during the other half of the year when they are bare. In this chapter the characterizations are based, as far as possible, on peculiarities that are evident all year... more...

SECTION I. In discussions of pathological conditions contributing to lameness in the horse, cause is generally classified under two heads—predisposing and exciting. It becomes necessary, however, to adopt a more general and comprehensive method of classification, herein, which will enable the reader to obtain a better conception of the subject and to more clearly associate the parts so grouped... more...

Page 3 INTRODUCTION OFFICE OF THEBUREAU OF STATISTICS, AGRICULTURE AND IMMIGRATION,OLYMPIA, WASHINGTON, JUNE 1, 1909. This publication represents an effort to place before the general public, and particularly the visitors at the Alaska-Yukon-Pacific Exposition, a brief description of the principal resources and industries of the State of Washington. Its imperfections may be accounted for largely by... more...

RULE I. ON THE CONSTRUCTION OF A BEE-HIVE. A bee-hive should be made of sound boards, free from shakes and cracks; it should also be planed smooth, inside and out, made in a workmanlike manner, and painted on its outside. REMARKS. That a bee-hive should be made perfect, so as to exclude light and air, is obvious from the fact, that the bees will finish what the workman has neglected, by plastering up... more...

Introduction GROWING NUTS IN THE NORTH Only a few books have been written on the subject of nut trees and their bearing habits, and very little of that material applies to their propagation in cold climates. For these reasons I am relating some of the experiences I have had in the last thirty-two years in raising nut trees in Wisconsin. To me, this has been a hobby with results both practical and... more...