Nature Books

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...

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...

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...

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...

CHAPTER XII. THE MULBERRY FAMILY. "There is a fruit tree," said Miss Harson, "belonging to an entirely different family, which we have not considered yet; and, although it is not a common tree with us, one specimen of it is to be found in Mrs. Bush's garden, where you have all enjoyed the fruit very much. What is it?" "Mulberry," said Clara, promptly, while Malcolm was... more...

NESTING TIME. “There swims no goose so gray, but soon or late,She takes some honest gander for a mate;”There live no birds, however bright or plain,But rear a brood to take their place again.—C. C. M.QUITE the jolliest season of the year, with the birds, is when they begin to require a home, either as a shelter from the weather, a defence against their enemies, or a place to rear and protect... more...

In 1928 when Miller and Allen (Bull. U. S. Nat. Mus., 144) published their revisionary account of American bats of the genus Myotis, the black myotis, Myotis nigricans, was known no farther north than Chiapas and Campeche. Collections of mammals made in recent years for the Museum of Natural History of The University of Kansas include specimens of M. nigricans from eastern Mexico as far north as... more...

THE HARE. I suppose you have all seen a Hare, and perhaps many of you have helped to eat one. The Hare is a very timid animal, running away on the least alarm; but, poor fellow, he is too often caught by the dogs and killed, notwithstanding his swift running. It is rather difficult to tame Hares, but there is a very amusing account of three, named Puss, Tiney, and Bess, written by the poet Cowper, who... more...

The subject of inheritance is an immense one, and has been treated by many authors. One work alone, 'De l'Hérédité Naturelle,' by Dr. Prosper Lucas, runs to the length of 1562 pages. We must confine ourselves to certain points which have an important bearing on the general subject of variation, both with domestic and natural productions. It is obvious that a variation which is not... more...

Chapter I. Its Antiquity, Duration and Significance in Geologic History. Palæontology deals with the History of Life. Its time is measured in geologic epochs and periods, in millions of years instead of centuries. Man, by this measure, is but a creature of yesterday—his "forty centuries of civilization" but a passing episode. It is by no means easy for us to adjust our perspective to the... more...