and some unique, relating to the aboriginal languages of North and South America, to the University of Pennsylvania. =Nebraska as a Home for Birds.=--Mr. Lawrence Bruner introduces his Notes on Nebraska Birds with the expression of a belief, founded on his own observations for twenty-five years, together with those of about fifty other persons to whose notes he has had access, that Nebraska, although a prairie State, has an unusually large bird fauna. The notes show 415 species and subspecies as visiting the State, while there are records of 227 species breeding within its borders, and of more than 700 winter residents. "When we learn that only about 780 species are recorded for the whole of North America north of the Mexican boundary, it certainly seems astonishing that from among them we should receive so large a percentage. If, however, we take into consideration the variations in altitude above sea level, the differences in surface configuration, climate, etc., that pertain to our State, its location, and the relation which it bears to the country at large, perhaps the wonderment will become less." The southeastern corner of Nebraska is only eight hundred feet, the western border almost six thousand feet, above tide water. The State is divided into timber, prairie, and plain regions. It lies in the middle of the United States, with a high mountain chain to the west and a giant water way along its eastern boundary. In fact, eastern, western, northern, and southern fauna meet in Nebraska, and it also has a fauna of its own. Forms are found there that belong to low and high altitudes, to wet and dry climates, to prairie and timbered countries, and to semi-desert and alkali regions.