410 



Report of the Kew Committee. 



record of the temperatures which they have experienced during the 

 whole of their trial. 



The range of temperature from 55° to 85° F., to which the marine 

 chronometers are submitted, has been decided upon after careful 

 consideration, as being amply sufficient for determining the behaviour 

 of chronometers under conditions to which they are usually exposed 

 at sea, and no objections have yet been received from makers or 

 others to the adoption of the above range. 



VII. Miscellaneous. 



Photographic Paper, Sfc. — This has been supplied to the Observa- 

 tories at Batavia, Coimbra, Falmouth, Glasgow, Lisbon, Mauritius, 

 Oxford, Stonyhurst, St. Petersburg, and Toronto, and to the Meteoro- 

 logical Office. Blank forms have also been supplied to various 

 Observatories and individuals. 



At the request of Senhor Capello, of the Lisbon Observatory, 

 an astronomical clock was procured and shipped to the Loanda 

 Observatory, for use during the recent solar eclipse. 



Two barograph tabulators, photographic appliances, and various 

 other instruments have been procured, verified, and forwarded to the 

 Observatories at Hong Kong and Mauritius. 



The Observatory has been presented by the Bev. John Bigaud, B.D., 

 Fellow of Magdalen College, Oxford, with a bust of his father, 

 Stephen Peter Bigaud, Esq., M.A., F.B.S., Savilian Professor of 

 Astronomy and BadclifFe Observer, who formerly assisted his uncle, 

 the Bev. S. Demainbray, in carrying on the Observatory. 



Exhibitions, Sfc. — At the request of the Council of the Boyal 

 Meteorological Society a number of old instruments were exhibited 

 at the Exhibition held by the Society in the rooms of the Institution 

 of Civil Engineers in March, and devoted this year to barometers. 



Four sets of photographs illustrative cf the various processes in 

 use at different periods at the Observatory have been contributed 

 to the Photographic Exhibition, held in the Corporation Galleries 

 of Art at Glasgow. 



Library. — In July the Superintendent received a letter from the 

 Secretary of the Boyal Society offering a number of duplicate volumes 

 about to be removed from the Library at Burlington House, and 

 forwarding a catalogue. 



A selection was made of those suitable for the Observatory Library, 

 and sixteen volumes were accordingly sent down to Kew. 



Presents of publications were received during the year from — 



34 Scientific Societies and Institutions of Great Britain and Ire- 

 land, and 



92 Foreign and Colonial Scientific Establishments, as well as 

 numerous private individuals. 



