346 SCHOOL SCIENCE AND MATHEMATICS

4. That the results of 1, 2 and 3 be published, and made thebasis of next year’s report of the committee.The report was adopted and by specific vote the committee was

asked to continue its work as suggested in the report.OTIS W. CALDWELL, Chicago, 111., Chairman.

JAMES H. SMITH, Chicago/Ill.C. E. SPICE.R, Joliet, III.A. W. EVANS, Chicago, III.W. M. BUTLER, St. Louis, Mo.

ROSENWALD HALL AT UNIVERSITY OF CHICAGO.The meteorological tower of the new Rosenwald Hall at the University

of Chicago not only is to have the complete equipment necessary for theusual observations of ,a meteorological station, but is so arranged as toaccommodate additional appliances for special investigations as occasionmay arise. The more conspicuous instruments are the anemometers andwind vane and the devices for measuring the temperature, pressure, andmoisture of the atmosphere. All of these are provided with automaticregisters which keep a continuous record of the atmospheric changes.The platform for the seismograph is supported by a cement pier extend-

ing down to the solid rock about sixty feet below the campus surface.During the year two or three seismographs will be installed, for thereason that separate instruments are required to record the east-west,north-south, and vertical tremors that pass through the earth. ProfessorA. A. Michelson, head of the Department of Physics, has invented theessentials of a seismograph of a new type, and it is probable that thistype will be perfected and installed instead of those already in use.A special laboratory has been provided for experiments in the forma-

tion of minerals and ores under exceptionally high temperatures and pres-sures. As a precaution to minimize possible accidents this laboratory hasbeen placed, not under the building, but in the space between RosenwaldHail and Walker Museum.

In addition to these somewhat unusual features, the building is pro-vided with more than the usual complement of laboratories’ for experi-mental and other research work in various lines, among which is a labora-tory for experiments in dynamic geology in which artificial strata areformed and crushed under pressure to determine the laws of fracturingand folding in rocks. A series of experiments of this kind has been inprogress for some time.Unusual facilities for preserving and handling a library of about 75,000

volumes have been provided, as well as ample reading-room accom-modation in close connection therewith.This new building, devoted to the Departments of Geology and Geog-

raphy, will be fully equipped for its work by the time of dedication at theend of the Spring Quarter.