Editorial Cojuhttke : S. Newcomb, Mathematics ; E. S. Woodward, Mechanics ; E. C. Pickerino, 



Astronomy ; T. C. Mendenhall, Physics ; E. H. Thurston, Engineering ; Ira Eemsen, Chemistry ; 



Joseph Le Conte, Geology ; W. M. Davis, Physiography ; Henry F. Osborn, Paleontology ; 



W. K. Brooks, C. Hart Merriam, Zoology ; S. H. Scuddeb, Entomology ; C. E. Bessey, 



N. L. Britton, Botany ; C. S. MiNOT, Embryology, Histology ; H. P. Bowditoh, 



Physiology ; J. S. Billings, Hygiene ; William H. Welch, Pathology ; 



J. McKeen Cattell, Psychology ; J. W, Powell, Anthropology. 



Friday, December 28, 1900. 



CONTJENTS: 



Progress in Forestry under State Control : Pro- 

 fessor V. M. Spalding 977 



Geology and Geography at the American Associ- 

 ation : Professor J. A. Holmes 989 



The New Chemical Laboratory of the University of 

 Kansas: PROFESSOR E. H. S. BAILEY 997 



Scientific Books : — 

 Ball's Treatise on the Theory of Screws : Pro- 

 fessor Carl Barus. Topographic Atlas of the 

 United States : Professor Israel C. Eussell. 

 Books Received 1001 



Scientific Journals and Articles 1004 



Societies and A cademies : — 



Geological Society of Washington : Dr. F. L. 

 Eansome, Dr. David White. Chemical So- 

 ciety of Washington : Dr. WILLIAM H. Krug. 

 New York Academy of Sciences ; Section of 

 Geology and Mineralogy : Dr. Theodore G. 

 White. Section of Astronomy, Physics and 

 Chemistry : Dk. WILLIAM S. DAY. T/ie New 

 York Section of the American Chemical Society : 

 Dr. Durand Woodman. The Nebraska Acad- 

 emy of Sciences : PROFESSOR LAWRENCE Bru- 

 NER 1005 



Discussion and Correspondence : — ■ 



A Gasoline Launch for Field Work : De. Gil- 

 bert D. Harris 1009 



Current Notes on lleteorology : — 

 De Saussure's Essays on Hygrometry ; British 

 Rainfall for 1899 ; Scientific Balloon Voyages : 

 Professor E. DeC. Ward 1010 



Yellow Fever and 3Iosquitoes 1011 



Uninsulated Conductors and Scientific Instruments.. W12 



Scientific Notes and News 1012 



University and Educational News 1016 



MSS. intended for publication and books, etc., intended 

 for review should be sent to the responsible editor, Fro- 

 feeaor J. McKeen Cattell, Garrison-on-Hudson, N. Y. 



PROGRESS IN FORESTRY UNDER STATE 

 CONTROL.* 



In the steps that are now being taken by 

 the State of Michigan looking towards the 

 establishment of a permanent forest policy 

 the recent experience of other States cannot 

 fail to be instructive. In the development 

 of a great public movement in which so 

 much is untried and unforeseen, mistakes 

 are certain to occur, but the chance of their 

 occurrence may be lessened by taking ac- 

 count of the history of similar movements 

 elsewhere. Accordingly, the forestry laws 

 of several States have been reviewed by the 

 writer, and an attempt has also been made, 

 from a comparison of these and a consider- 

 ation of conditions there existing, to gather 

 such hints as may be available in our own 

 State. It has been thought best to limit 

 this study to the five States, New York, 

 New Jersey, Pennsylvania, Wisconsin and 

 Minnesota, both because they approach 

 Michigan more closely than others in phys- 

 ical conditions and because by far the great- 

 est progress in the development of a forest 

 policy has been made in those States. 



The conditions in New England and the 

 Southern Atlantic States are so far differ- 

 ent from our own as to be valuable chiefly 

 in a general way rather than in the solution 

 of special problems ; the great agricultural 



* A review of forestry legislation and conditions in 

 the Central and Northern States, prepared for the 

 Michigan Forestry Commission. 



