Report on the Observatory Department. 



427 



entered for the Kew A trial and 1 for the B trial. Of these 44 gained 

 A certificates, 1 a B certificate, and 9 failed. 



The mean-time chronometer Arnold 86, and the hack chronometer 

 Molyneux 2123 have been cleaned and re-timed. 



VII. Miscellaneous. 



Commissions. — The work under this heading has been of a very 

 varied character during the year. The following instruments have 

 been procured, examined, and forwarded to the various Observatories 

 on whose behalf they were purchased : — 



For Lisbon and Portuguese W. Africa, a transit theodolite, a 

 declinometer, a dip circle with two needles, a centre-seconds 

 watch, and two chronometers. 



For Mauritius, a Mason's hygrometer, an ordinary maximum and 

 two solar maximum thermometers. 



For the Central Physical Observatory, St. Petersburg, and the 

 Baron Toll Expedition : A dip circle with six needles, two 

 prismatic compasses, two aneroid barometers, a Eobinson cup 

 anemograph, a chronometer, and a deck watch. 



For de Bilt (Utrecht), a vertical force magnet. 



Paper. — Prepared photographic paper has been supplied to the 

 Observatories at Hong Kong, Mauritius, Lisbon, Toronto, St. Peters- 

 burg, Stonyhurst, Oxford (Radcliffe) ; and through the Meteorological 

 Office to Aberdeen, Fort William, and Valencia. 



Photographic paper has also been sent in quarterly instalments to 

 the India Office for use at Colaba (Bombay), Calcutta, and Madras. 



Anemograph and Sunshine Sheets have also been sent to Hong Kong, 

 Mauritius, and St. Petersburg ; Papier Saxe to Coimbra ; and Seismo- 

 graph rolls to Mauritius. 



Pendulum Observations. — In June, Mr. Putnam, of the U.S. Coast and 

 Geodetic Survey, swung half-second pendulums in the wooden room in 

 the basement. 



Library. — During the year the library has received publications 

 from — 



19 Scientific Societies and Institutions of Great Britain and 

 Ireland, 



96 Foreign and Colonial Scientific Establishments, as well as from 

 several private individuals. 



The card catalogue has been proceeded with. 



Audit, &c. — The accounts for 1900 have been audited by Messrs. W. 

 B. Keen and Co., chartered accountants. The balance sheet is ap- 

 pended. 



2 h 2 



