LIST OF PLATES, 



PLATES I., II., AND HI. 



Illustrative of the Eeport of the Committee on the Calibration of Jlerciirial 



Thermometeis. 



PLATE IV. 



Illustrative of Professor Ltooxe Levi's Communication, 'On the State of Crime 

 in England, Scotland, and Ireland in 1880.' 



PLATES v., VI., AND VIL 



Illustrative of Mr. J. Clabke IIaavkshaw's Communication, ' The Channel 



Tunnel.' 



PLATE VIII. 



Illustrative of Mr. B. Baker's Communication, 'The Forth Bridge.' 



PLATE IX. 



Illustrative of Dr. IIuggins's Communication, 'On the Photographic Spectrum of 



Comet (Wells) 1, 1882.' 



PLATE X. 



Illustrative of I'r. IIuggins's Communication, ' On the Photographic Spectrum of 



the Great Nebula in Orion.' 



