LIST OF PLATES. 



PLATES I. AND II. 



Illustrative of the Eeport of the Committee on the Tertiary Flora of the North 



of Ireland. 



PLATES III. AND IV. 



Illustrative of the Report of the Anthropometric Committee. 



PLATE V. 



Illustrative of the Report of the Committee on the present state of our Knowledge 



of Spectrum Analysis. 



PLATE yi. 



Illustrative of the Report of the Committee for constructing and issuing practical 

 Standards for use in Electrical Measurements. 



PLATE VII. 



Illustrative of Mr. G. M. Whipple's Commimication, ' Observations of Atmo- 

 spheric Electricity at the Kew Observatory during 1880.' 



PLATES VIII., IX., X., XL, XII., a^d XIII. 



Illustrative of Professor William Gkylls Adams's Communication, 'On 

 Magnetic Disturbances and Earth-currents.' 



PLATE XIV. 



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



Comet " b " 1881.' 



