70 REPORTS OF INVESTIGATIONS AND PROJECTS. 



Prof. V. M. Spalding, who has been a member of the staff at the Desert 

 Laboratory since 1906, and who had begun some work there three years 

 earher, has followed his exhaustive treatise on the distributional movements 

 of desert plants (Publication 113) through the press and has tendered his 

 resignation to become effective January i, 1910. Professor Spalding has 

 accepted retirement under the terms of the Carnegie Foundation for the 

 Advancement of Teaching, based upon his service for 28 years as an in- 

 structor and professor of botany in the University of Michigan and upon his 

 service in this Institution noted above. 



