374 



Report of the Kew Committee. 



servatory, have been returned to England for repair and alterations, and 

 are now undergoing verification. 



The following meteorological instruments have been verified, this por- 

 tion of the work being entrusted to Mr. T. "W. Baker, assisted by Messrs. 



Foster, Constable, and Welch : — 



Barometers, Standards 96 



„ Marine and Station 106 



202 



Aneroids 28 



Thermometers, ordinary Meteorological .... 1410 



„ Boiling-point Standards 86 



„ Mountain 34 



Clinical 1560 



,, Solar radiation 90 



3130 



In addition, 221 Thermometers have been tested at the melting-point 

 of mercury. 



10 Standard Thermometers have been calibrated and divided at Kew. 

 The following is the list of miscellaneous instruments which have 



been verified : — 



Hydrometers 129 



E-ain-gauges 29 



Dial Anemometers (Eobinson's) 20 



In addition to the Admiralty, Meteorological Committee, and opticians, 

 a number of instruments of various kinds have been verified for the 

 Standards Department and the Inland Eevenue Office. 



The total increase in the number of instruments verified over last year 

 has been 385, and in fees paid .£36 13s. Id. 



There are now at the Observatory undergoing verification 290 Ther- 

 mometers, 110 Hydrometers, and 20 Barometers. 



Lo7idon Office for receipt of instruments for verification. — Arrangements 

 have been made with Mr. Strachan, of the Meteorological Office, who 

 now receives instruments for verification at Kew, at 116 Victoria Street, 

 Westminster, and takes charge of them on their return. 



A Thermograph and Barograph, purchased by Dr. van der Stok for 

 the Batavia Observatory, are now undergoing verification. 



A Tabulating instrument of the most efficient pattern has been pur- 

 chased and verified for the Zi-ka-Wei Observatory. 



Mr. Galton's apparatus for testing Thermometers has received several 

 additions, serving to improve its utility ; and a series of experiments have 

 been made with it, the results of which will be laid before the Eoyal 

 Society. 



