Nature Books

DEVELOPMENT OF THE DIGESTIVE CANAL OF THE AMERICAN ALLIGATOR By ALBERT M. REESE Professor of Zoology, West Virginia University In a previous paper () the writer described the general features in the development of the American Alligator; and in other papers special features were taken up in more detail.In the present paper the development of the enteron is described in detail, but the derivatives of... more...

I. THE FEEDING OF CATTLE, Etc. (Read before the Chamber of Agriculture.) As my friend Mr Stevenson and some other members of the Chamber of Agriculture have expressed a desire that I should read a paper on my experience as a feeder of cattle, I have, with some hesitation, put together a few notes of my experience. I trust the Chamber will overlook the somewhat egotistical form into which I have been... more...

BIRDS OF THE SNOW No fact of natural history is more interesting, or more significant of the poetry of evolution, than the distribution of birds over the entire surface of the world. They have overcome countless obstacles, and adapted themselves to all conditions. The last faltering glance which the Arctic explorer sends toward his coveted goal, ere he admits defeat, shows flocks of snow buntings... more...

LOBO THE KING OF CURRUMPAW Currumpaw is a vast cattle range in northern New Mexico. It is a land of rich pastures and teeming flocks and herds, a land of rolling mesas and precious running waters that at length unite in the Currumpaw River, from which the whole region is named. And the king whose despotic power was felt over its entire extent was an old gray wolf. Old Lobo, or the king, as the Mexicans... more...

MUS RIDICULUS Mus ridiculus! The taunt had been flung at him by a stout field-vole, and, by reason of its novelty as well as of its intrinsic impertinence, had sunk deep into his memory. He had felt at the time that “Wee sleekit, cowrin’, tim’rous beastie” was but a poor rejoinder. But he knew no Latin and chose what was next in obscurity. Besides, he was a young mouse then, and breathless with... more...

BIOGRAPHICAL SKETCH.Nature chose the spring of the year for the time of John Burroughs's birth. A little before the day when the wake-robin shows itself, that the observer might be on hand for the sight, he was born in Roxbury, Delaware County, New York, on the western borders of the Catskill Mountains; the precise date was April 3, 1837. Until 1863 he remained in the country about his native... more...

DISTRIBUTION OF THE KNOWN BREEDING BIRDS OF COAHUILA Topography and Climate Coahuila lies in the broad northern end of México, immediately east of the center of the continental mass. The mountains of Coahuila, which are part of the Rocky Mountain-Sierra Madre Oriental Axis, extend in a north-south direction and divide the lower lands into two areas, a larger one, a part of the Central Plateau, to the... more...

The Freedom of the Black-faced Ram n the top of Ringwaak Hill the black-faced ram stood motionless, looking off with mild, yellow eyes across the wooded level, across the scattered farmsteads of the settlement, and across the bright, retreating spirals of the distant river, to that streak of scarlet light on the horizon which indicated the beginning of sunrise. A few paces below him, half-hidden by a... more...

WHAT species of mammals occur on the "coastal island", barrier beach, of Tamaulipas? Are the closest relatives of these mammals on Padre and Mustang islands of Texas, instead of on the mainland of Tamaulipas, or are the mammals on the barrier beach distinct from all others? These were questions that Dr. von Wedel of Oklahoma City and I asked ourselves in March of 1950 when we were in southern... more...

CHAPTER 1. SUPPLY AND DEMAND. For years there has been a belief that the supply of fur-bearing animals would soon be inadequate to the demand. This belief is well founded and is apparent when the fact is known that the natural haunts and homes of the fur-producing animals are becoming less each year. The draining of swamps and marshes is destroying the homes and breeding places of muskrat and to a... more...