LIST OF ILLUSTRATIONS. 
Plates 1 and 2. —Dr. A. A. Rambaut on the Underground Temperature at Oxford 
in the year 1899, as determined by Five Platinum-resistance Thermometers. 
Plates 3 to 13.— Professor J. A. Ewing and Mr. W. Rosenhain on the Crystalline 
Structure of Metals. 
Plates 14 to 21.—Professor IL S. Hele-Shaw and Mr. Alfred Hay on Lines of 
Induction in a Magnetic Field. 
Plates 22 to 25.—Professor F. D. Adams and Dr. J. T. Nicolson on an Experimental 
Investigation into the Flow of Marble. 
