MUSEUM OF COMPARATIVE ZOOLOGY. 17 



of the Lands was given by Dr. Mansfield to a class of nine 

 persons. 



Professor R. T. Jackson was absent in Europe during the year 

 and Course 11 was therefore not offered. 



Professor Ward reports that a falling off in the attendance of 

 students upon the courses in Meteorology and Climatology is 

 directly traceable to the assignment of the elementary lectures to 

 afternoon hours. A more detailed account will be found in a 

 report to the President. The meteorological observatory, com- 

 pleted in June, 1905, was used for the first time by the students 

 in Course B, during the spring of 1906. A standard shelter has 

 been erected on the roof, and the ordinary thermometers, thermo- 

 graph, hydrograph, and rain-gauge are at present in working 

 order out of doors. A barograph and a mercurial barometer are 

 installed within. The shelter and platform have been protected, 

 so far as possible, against damage by lightning in accordance 

 with the most approved methods, and the instrument room, in 

 the attic beneath the platform, has been changed in several re- 

 spects in order to diminish the risk of fire. This work was done 

 in 1905-06, under the direction of the Inspector of Grounds and 

 Buildings. 



Geology B has been strengthened by the extension of the 

 period of laboratory work from two to four hours a week. In 

 Geology 1, practical work with nephoscopes was introduced. In 

 Geology 19, laboratory work was substituted for theses, with 

 excellent results. In Geology 20e, Mr. K. S. Johnson, con- 

 structed a series of charts of relative humidity for the United 

 States, and these were shown at the Kimberley meeting of the 

 South African Association for the Advancement of Science, and 

 are to be published in the Report of the Association. A paper on 

 Tornado Insurance, written by Mr. H. E. Simpson, during the 

 year 1904-05, has been published in The Monthly Weather 

 Review, December, 1905. Mr. E. J. Saunders assisted Professor 

 Ward in Course B. 



Professor J. B. Woodworth reports that during the year he 

 planned and carried out with the assistance of Messrs. J. W. 

 Eggleston, F. H. Sawyer, and H. N. Eaton, the laboratory and 

 field work in Geology 4 ; the lectures and laboratory work in 

 Geology 5, where again he was assisted by Mr. Eggleston, together 

 with Messrs. E. E. White and Sawyer. Mr. Woodworth also gave 

 Course 8 and 16. In Course 20c Mr. E. S. Bryant worked 



