Report of the Kew Committee. o 1 1 



made of the scale value. Subsequent re-determinations were carried 

 out in May, July, and November. 



It is intended to take advantage of the first spell of frosty weather 

 to dismount and thoroughly overhaul the instrument, and to open 

 out the scale, which has for some time pasb been too contracted. 



Inspections. In compliance with the request of the Meteorological 

 Council, Mr. Baker visited and inspected the Observatories at Stony- 

 hurst, Glasgow, Fort William, and Aberdeen, and the Anemograph 

 Stations at Yarmouth, North Shields, Alnwick Castle, Deerness 

 (Orkney), Fleetwood, and Holyhead ; while Mr. Constable inspected 

 the Observatories at Oxford and Falmouth. 



III. SOLAR OBSERVATIONS. 



Sun-spots. Sketches of Sun-spots have been made on 155 days, and 

 xe groups numbered, after Schwabe's method. 



Particulars will be found in Appendix II, Table IV. 



The marked exhibition of solar activity noted in last report has 

 continued, and although no phenomenally large group of Sun-spots 

 has appeared, yet no one observation has been recorded in which the 

 Sun's surface was entirely free from spots. 



Time Signals. These have been regularly received from Greenwich 

 through the G.P.O., with the exception of a few days, on which 

 occasions supplementary signals were transmitted at later hours-. 



IV. EXPERIMENTAL WORK. 



Richard's Anemo-cinemograph. This instrument, which has been 

 at the Observatory since May, 1891, was at the end of the year re- 

 turned to Mr. Casella, by request of the makers. 



Cloud Photographs. Operations connected with cloud photography 

 have been suspended during the past year. 



Fog and Mist. The observation of a series of distant objects 

 referred to in the last report has been continued. A note is taken 

 of the most distant of the selected objects which is visible at each 

 observation hour. An analysis of the results for the period May, 



1892, to December, 1893, is at present being carried out. 



During the thickest fog experienced in the past year, at one of the 

 hours of observation the most distant object visible was only 12 feet 

 off. 



V. VERIFICATION OF INSTRUMENTS. 



The subjoined is a list of the instruments examined in the year 



1893, with the corresponding results for 1892 : 



