Report of the Kew Committee. 



403 



Measurements of dry bulb thermograph curves. . 9473 



,, wet bulb thermograph curves. . 8681 



wind (direction and velocity). . 17515 



,, rainfall curves 740 



„ sunshine traces 2113 



In compliance with the usual request made by the Meteorological 

 Council to the Committee, Mr. Whipple visited the Observatories at 

 Aberdeen, Glasgow, and Stony hurst, and the anemograph at Swan- 

 bister. He also superintended the erection of new instruments at 

 North Shields and Fleetwood. 



Mr. Baker has visited the Valencia and Falmouth Observatories 

 for the purpose of inspection. 



With the sanction of the Meteorological Council, weekly abstracts 

 of the Meteorological results have been regularly forwarded to, and 

 published by 1 The Times ' and ' The Torquay Directory.' Data 

 have also been supplied to the Council of the Royal Meteorological 

 Society, the editor of ' Symons's Monthly Meteorological Magazine,' 

 the Secretary of the Institute of Mining Engineers, Messrs. B. Latham, 

 Gwilliam, Rowland, and others. The cost of these abstracts is borne 

 by the recipients. 



Electrograph. — Acting upon the recommendation of the Kew Com- 

 mittee the Meteorological Council have purchased a new quadrant 

 electrometer, constructed on Mr. de la Rue's principle, with Professor 

 Clifton's improvements, together with a chloride of silver battery of 

 60 cells, for the purpose of maintaining the potential of the quadrants 

 at a certain point. 



By the kindness of the Chairman of the Committee, experiments 

 were made at his laboratory in Portland Place by means of which 

 the scale value of the instrument was determined before it was 

 conveyed to the Observatory, and erected in the place of the 

 Thomson instrument formerly employed. 



No change has been made in the recording apparatus attached to 

 it. The instrument has been working for the past month in a satis- 

 factory manner. 



In accordance with a request made by the Meteorological Council, 

 and at their expense, the electrograms for the two years 1882 and 1883 

 have been tabulated in absolute values. 



III. Solar Observations. 



The sketches of Sun-spots, as seen projected on the photoheliograph 

 screen, have been made on 169 days, in order to continue Schwabe's 

 enumeration, the results being given in Appendix II, Table IY. 



Transit Observations. — 30J observations of solar and 76 of sidereal 

 transits have been taken, for the purpose of keeping correct local time. 



VOL. XLI. 2 E 



