14 ANNUAL REPORT OF THE 



In Geology 22a, Messrs. Buckman and Kendall worked together 

 on the stratigraphic relations of the sedimentary rocks about 

 Hoppin Hill, near North Attleborough, Mass. 



In Geology 17, Mr. V. F. Marsters, in collaboration with Mr. 

 Jaggar, completed a preliminary series of experiments on the influ- 

 ence of rate of compression and initial fracture in deformation of 

 strata. This half-course in experimental geology was given for the 

 first time : a series of lectures extending throughout the first half- 

 year reviewed the work of former experimenters, and systematic 

 laboratory work covered experiments in deformation, delta deposi- 

 tion and sedimentation, ice motion, vortical motion of fluids and 

 its geological work (ripple-mark, etc.), rock and mineral synthesis 

 (including Moissan's experiment with the electric furnace). During 

 the second half-year Mr. Marsters made a series of tests with 

 various crucibles to determine the most effectual and inexpensive 

 method of using the blast furnace for rock synthesis, and completed 

 several syntheses of basalt. 



The Gardner Collection of Photographs has been in the hands 

 of a committee composed of Messrs. J. B. Woodworth, Ward, and 

 Woodman. 



A case has been provided for the reception of lantern slides, with 

 a capacity of 3,500 slides. About one hundred slides have been 

 added during the year, mainly reproduced from photographs already 

 in the collection. 



341 catalogued photographs have been added to the collection 

 since the last Report, bringing the number up to 3,594. A few faded 

 photographs have been condemned and thrown aside. The most 

 notable additions during the year have been a number of views of 

 the High Sierras taken by Mr. J. S. Solomons, of San Francisco ; 

 a set of Norwegian views selected by Dr. Hans Reusch, Director 

 of the Geological Survey of Norway ; a set of coastal views from 

 Maine and Massachusetts, donated by Mr. John L. Gardner, Jr. ; 

 and a set acquired by purchase from the Iowa Geological Survey. 

 Gifts were received from Mr. G. W. Griffith of a panorama of the 

 Muir Glacier in Alaska, and from Mr. J. C. Clark of English views ; 

 also from Mr. J. H. Ropes, and from Mr. C. I. Wright. 



