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Recognizing the disconnection of the elementary and the ad- 

 vanced courses, it is now proposed to introduce two intermediate 

 half-courses on the Physical Goography of the United States, and 

 of Europe, to be given in alternate years, beginning in February 

 next. 



Certain new material for the elementary courses may be briefly 

 mentioned. First, a model, consisting of three elliptical rings at 

 right angles to one another, around a black globe, has been con- 

 structed to illustrate the problem of the tides. In connection 

 with the tracings of a selected series of tidal curves obtained from 

 the United States Coast and Geodetic Surveys, this model serves 

 to make the matter of the diurnal inequality, and its variation 

 during a lunation, relatively simple. Second, a number of grouped 

 sheets of foreign topographical surveys, selected according to the 

 plan explained in previous Reports ; the new members of this 

 collection being chiefly from the German maps on a scale of 

 1 : 100,000. An account of the method pursued in the elementary 

 course on Physical Geography, with special reference to its disci- 

 plinary value, was published in the [Chicago] Journal of Geology, 

 for January, 1894. 



Apart from the regular work of teaching, and from administra- 

 tive duties connected with the Committee on Special Students, the 

 work of the Professor of Physical Geography has been chiefly as 

 follows. During the winter, four lectures were given to an audience 

 of over a hundred teachers in Providence and its vicinity, by invi- 

 tation from the Superintendent of Public Instruction in Rhode 

 Island, on the physical features of that State, and especially on the 

 illustration of these features given in the topographical map of 

 Rhode Island, which had been previously distributed to all its 

 schools. In the spring a list of 126 lantern slides, illustrating a 

 number of typical examples of geographic features, such as plains, 

 plateaus, mountains, volcanoes, rivers, glaciers, lakes, coasts, was 

 made by selection from our laboratory collection, — a part of the 

 Gardner Photographic Collection. The list was published, with 

 explanatory notes, as an appendix to the Annual Report of the 

 Superintendent of Schools of Cambridge for 1893. Arrangements 

 have been made with Mr. E. E. Howell, 612 Seventeenth Street 

 N. W., Washington, D. C, to supply both the lists and the slides 

 at moderate price to teachers who desire them. In order to bring 

 these slides to the notice of the teachers in the Cambridge schools, 



