LIST OF ACCOMPANYING PAPERS. 



Page 

 A Study of the Conditions for Solar Research at Mount Wilson, Califor- 

 nia. By George E- Hale .: I55-I74 



The Southern Observatory Project. By Ivcwis Boss I75-I77 



Methods for promoting Research in the Exact Sciences : Letters of 

 Simon Newcomb, Lord Rayleigh, H. H. Turner, Karl Pearson, G. H 



Darwin, Arthur Schuster, Edward C. Pickering 179-193 



Fundamental Problems of Geology. By T. C. Chamberlin 195-258 



Plans for obtaining Subterranean Temperatures. By G. K. Gilbert. . . 259-267 

 Value and feasibility of a determination of Subterranean Tempera- 

 ture Gradient by means of a Deep Boring 261-267 



Proposed Magnetic Survey of the North Pacific Ocean. By L. A. Bauer 



and G. W. Littlehales 269-273 



Geological Research in Eastern Asia. By Bailey Willis 275-291 



ILLUSTRATIONS. 



PI.ATES. 



Page 



Plate i. Cold Spring Harbor Station, first-floor plan 24 



2. Cold Spring Harbor Station, cellar plan 26 



3. Cold Spring Harbor Station, second-floor plan 26 



4. The Marine Biological Laboratory at Tortugas, Florida 50 



5. The Physalia . 54 



6. Desert Botanical Laboratory, Tucson, Arizona, rear views 98 



7. Desert Botanical Laboratory, Tucson, Arizona, front view 100 



TEXT FIGURES. 



Fig. I. Plan showing main plot of ground, buildings, etc.. Cold Spring 



Harbor Station ... 25 



2. Cold Spring Harbor Station, west elevation 26 



3. Plan of laboratory buildings at Tortugas, Florida 51 



4. Map of north end of Loggerhead Key, Tortugas, Florida, showing 



site of Carnegie Institution Laboratory 53 



5. Floor plan of Desert Botanical Laboratory 99 



6. Route in eastern China, June, 1903-1904 277 



7 



