collecting the materials. Incidentally arising out of this defini- 

 tion work, and closely connected with it, has been the preparation 

 of a small volume, now about half through the press, in which 

 are given the results of some investigations into the names of 

 the topographical features of this and other countries, with which 

 are interwoven various historical matters connected with geo- 

 graphical discovery, especially in the Northwestern United 

 States. 



Field-work has also been carried on, to a limited extent, in 

 connection with this investigation of the surface deposits and 

 glacial phenomena of Northeastern North America, mention of 

 which investigations was made in the last Report. It is hoped 

 that a preliminary statement of progress made in this investiga- 

 tion may be got ready for publication in the coming spring, and 

 that it may form a part of the second volume of the Geological 

 Series of the Museum Bulletin. 



Professor Wadsworth's work on the lithological collections has 

 been continued during his vacations, and it was expected that 

 the second and concluding portion of his volume of " Lithologi- 

 cal Studies " would before this time have been ready for the 

 press. His recent appointment as Director of the Michigan Min- 

 ing School will render a further delay necessary. This delay is 

 much to be regretted, but it is one for which the Sturgis-Hooper 

 Professor is not responsible. 



