Report of the Kew Committee. 403 



II. METEOROLOGICAL OBSERVATION'S. 



The several self-recording instruments for the continuous registra- 

 tion respectively of Atmospheric Pressure, Temperature, and Humidity, 

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

 maintained in regular operation throughout the year. 



The standard eye observations for the control of the automatic 

 records have been duly registered, together with the daily observa- 

 tions in connexion with the U.S. Signal Service synchronous system. 



The tabulations of the meteorological traces have been regularly 

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

 notes of weather, cloud, and sunshine, have been transmitted to the 

 Meteorological Office. 



With the sanction of the Meteorological Council, data have been 

 supplied to the Council of the Royal Meteorological Society, the 

 editor of ' Symons's Monthly Meteorological Magazine,' Dr. Rowland, 

 and others. 



Tables of the monthly values of the rainfall and temperature have 

 been regularly sent to the Meteorological Sub-Committee of the 

 Croydon Microscopical and Natural History Club for publication in 

 their Proceedings. Detailed information of all thunderstorms ob- 

 served in the neighbourhood during the year has been forwarded 

 to the Royal Meteorological Society, soon after their occurrence. 



Electrograph. This instrument has been in constant action through- 

 out the year, and comparisons with the portable electrometer 

 have been made from time to time. 



' Times ' Weather Chart. The supply of the chart exhibiting copies 

 of the daily traces of the self-recording meteorological instruments at 

 the Observatory ceased by instructions from the ' Times ' office in 

 March last, after continuous publication for 14 years. 



The fog gauge set up on the north side of the Observatory in 1884 

 has been recently dismounted, as it has not been found possible to 

 measure the intensity of this phenomenon by its means. 



Fort William Observatory. At the request of the Meteorological 

 Council, a barograph and a thermograph which have been stored at 

 Kew Observatory since their return from Armagh Observatory in 

 1886 have been thoroughly re-fitted, and, after a short experimental 

 trial, were re- packed and forwarded to the new Observatory at Fort 

 William for use at the low-level station worked in conjunction with 

 the Observatory erected on the summit of Ben Nevis. 



In June last, on receipt of information from Mr. Omond, the super- 

 intendent of the Ben Nevis Observatory, that the new building was 

 ready for the reception of the instruments, Mr. T. W. Baker proceeded 

 to Fort William and set them up and put them in proper adjustment. 

 Having done this, and instructed Mr. Omond in their manipulation 



