Our aim is to bring up to date the list of kinds of bats actually known from Barro Colorado Island, Panamá. In 1952 Samuel T. Dickenson, Marguerite Schultz, George P. Young, and E. Raymond Hall spent the first 17 days of April (except Mrs. Schultz who left on April 8) on Barro Colorado Island. On eight evenings a silk net, 30 feet long and 7 feet high with a ¾-inch mesh, was stretched in an open... more...

CHAPTER IV. Uncle Thomas introduces to the Notice of the Young Folks the Ettrick Shepherd's Stories about Sheep; and tells them some Interesting Stories about the Goat, and its Peculiarities. "I dare say, Boys, you have not forgotten the Ettrick Shepherd's wonderful stories about his dogs. Some of those which he relates about sheep are equally remarkable, and as he tells them in the same... more...

Last Bull That was what two grim old sachems of the Dacotahs had dubbed him; and though his official title, on the lists of the Zoölogical Park, was “Kaiser,” the new and more significant name had promptly supplanted it. The Park authorities—people of imagination and of sentiment, as must all be who would deal successfully with wild animals—had felt at once that the name aptly embodied the... 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...

MAN. In this collection, like Linnæus, we begin with man as undoubtedly an animal, as opposed to a vegetable or mineral. Like Professor Owen, we are inclined to fancy he is well entitled to separate rank from even the Linnæan order, Primates, and to have more systematic honour conferred on him than what Cuvier allowed him. That great French naturalist placed man in a section separate from his... 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...

IMPORTANCE OF RODENT GROUPS. As the serious character of the depredations by harmful rodents is recognized, State, Federal, and private expenditures for their control increase year by year. These depredations include not only the attacks by introduced rats and mice on food materials stored in granaries, warehouses, commercial establishments, docks, and private houses, but also, particularly in the... more...