502 Report of the Kew Committee. 



the Vertical Force or Inclination, but slightly affects the absolute 

 values of the " Hourly Means." If the method previously in use had 

 been followed, the mean results for the year would have been 



Inclination 67 25' 



Vertical Force 0'43881 C.G.S. unit. 



The observations of absolute declination, horizontal intensity, and 

 inclination have been made weekly during the year. 



A table of recent values of the magnetic elements at the Obser- 

 vatories whose publications are received at Kew was communicated 

 to the July number of ' Science Progress,' and it is intended to con- 

 tribute similar tables to the same magazine in future years. It is 

 hoped in this way to render magnetic data more generally accessible 

 to investigators than they have been hitherto. 



Mr. Armitage, of the Jackson-Harms worth Polar Expedition, 

 was given a short course of instruction in the use of magnetic 

 instruments immediately prior to the departure of the expedition in 

 July. A unifilar magnetometer and a dip-circle were lent to the 

 expedition on the condition of their being returned within a specified 

 time. 



Captain Lyons, R.E., practised for a few days the taking of mag- 

 netic observations previous to his departure for Egypt, and Captain 

 Schiick, of Hamburg, made a few comparisons of his instruments. 



Mr. W. Watson, of the South Kensington School of Science, was, 

 at the request of Professor Rucker, afforded facilities for making 

 some comparisons of different magnetic instruments in the Experi- 

 mental Magnetic House. 



II. METEOROLOGICAL OBSERVATIONS. 



The several self-recording instruments for the continuous registra- 

 tion of Atmospheric Pressure, Temperature of Air and Wet-bulb, 

 Wind (direction and velocity), Bright Sunshine, and Rain, have been 

 maintained in regular operation throughout the year, and the 

 standard eye observations for the control of the automatic records 

 duly registered. 



The tabulations of the meteorological traces have been regularly 

 made, and these, as well as copies of the eye observations, with 

 notes of weather, cloud, and sunshine, have been transmitted, as usual, 

 to the Meteorological Office. 



With the sanction of the Meteorological Council, data have been 

 supplied to the Council of the Royal Meteorological Society, the 

 Institute of Mining Engineers, the editor of ' Symons's Monthly 

 Meteorological Magazine,' Dr. Rowland, and others. 



