468 Report of the Kew Committee. 



vol. xvii, p. 482, has been erected in the Experimental House, being 

 attached by permission of the Meteorological Council to their spare 

 Beckley Anemograph. 



Some difficulties were experienced on account of the nnsuitability 

 of the electrical counters fitted to it for registration of light winds, 

 but these have now been overcome, and the instrument is working 

 satisfactorily. 



V. VERIFICATION OF INSTRUMENTS. 



The following magnetic instruments have been verified, and their 

 constants determined : 



3 Unifilar Magnetometers for Elliott Brothers, London. 



3 Dip Circles for Elliott Brothers, London. 



1 Unifilar Magnetometer for Negvetti and Zambra, London. 



1 Dip Circle for Negretti and Zambra, London. 



There have also been purchased on commission and verified : 



A Unifilar Magnetometer and a Dip Circle for Professor 



Riicker, Leeds College of Science. 

 A small Robinson's Pattern Dip Circle for Senhor Capello, 



Lisbon. 



2 Fox Circles with Gimbal Tables complete, for the United 

 States Government. 



6 small Collimating Magnets for Professor Tacchini, Rome. 



One Pair of Dip Needles for the Greely Relief Expedition. 



A Dip Circle for Dr. Wild, St. Petersburg. 



A set of self-recording Magnetometers for the United States 

 Government. 



A Unifilar and a Pair of Dip Needles are at present under- 

 going examination. 



The General Verification Department continues in full activity, 

 a considerable increase having taken place in the number of Sikes* 

 Hydrometers and Sextants examined. 



The total number of instruments tested in the past year was as 

 follows : 



Barometers, Standard 44 



,, Marine and Station 80 



Aneroids 84 



Total. . 208 



