( 804 ) 



Tables I. to XXXIV. and Plates I. to VIII. are attached to this paper. 



Latitude 

 Longitude 

 Height above sea 



Do. 

 Time used 

 Period covered 



Ben Nevis Summit Observatory. 



56° 48' N. 

 5° 0' W. 

 4407 feet. 

 1343 metres. 

 Greenwich mean time. 

 1st January 1885 to 31st December 1897. 



