XXVi REPORT—1852. 
in addition to the application made to the meeting at Ipswich, on the part of 
the Commissioners of Brighton, by their clerk. 
“Glasgow: from the Magistrates and Town Council, and from the 
Glasgow Philosophical Society. 
“Leeds: for a meeting some year after the year 1853. 
“ VII. The Council are happy to have it in their power to report most 
favourably on the proceedings in the last year at the establishment at Kew. 
The experimental trial of Mr. Ronalds’s magnetographs, which was in pro- 
gress when the last Report of the Council was made, has been completed, 
and detailed statements of the performance of each of the three instruments 
have been furnished by Messrs. Ronalds and Welsh, and are inserted in the 
volume of Reports for 1851. The Council have great pleasure in referring 
to these statements as showing that Mr. Ronalds’s adaptation of photography 
to record the magnetic variations is an effective and practically useful in- 
vention, supplying to those who may desire it the means of making and 
preserving a continuous registry of the phenomena. The processes employed 
for the construction and verification of standard thermometers, have proved 
remarkably successful, and will form the subject of a distinct and detailed 
Report from the Committee of the Kew Observatory. The thermometers 
prepared by Mr. Welsh, under the direction of the Committee, have been 
found, on intercomparison, and also on comparison with Mr. Regnault’s 
standard, to furnish results highly satisfactory. They have already been 
supplied on application to the observatories at the Cape of Good Hope and 
Toronto, and to several persons under the following regulation of the 
Council:—‘ That standard thermometers made at Kew be supplied on ap- 
plication to members of the British Association, and Fellows of the Royal 
Society, at 17, each.’ The Council have also directed that the Kew Com- 
mittee be authorized, at their discretion, to supply standard thermometers 
on official application to any department of Her Majesty’s Government, or 
to the East India Company ; and 2nd, that the Committee be authorized, at 
their discretion, to present standard mercurial thermometers to certain of 
the philosophical instrument makers. In compliance with the first of these 
regulations, the Committee have supplied, on application from the Admiralty, 
fourteen thermometers graduated to extreme low temperatures, to be em- 
ployed in the Arctic Expeditions; and, in compliance with the second 
regulation, they have presented standard thermometers to each of the follow- 
ing artists, viz—Messrs. Adie, Barrow, Watkins and Hill, Negretti, Newman, 
and Simms. Applications have been received from Professors James Forbes 
of Edinburgh, and William Thomson of Glasgow, for suitable thermometers 
for very delicate experimental researches in which these gentlemen are en- 
gaged, and which thermometers are now in preparation. 
“The preparations for the construction of standard barometers are far 
advanced ; and with a view to the further prosecution of these objects, the 
Committee for the construction and verification of standard instruments have 
taken steps for procuring authentic standards of length and weight, by placing 
themselves in communication with the Commission appointed by Her Ma- 
jesty’s Government to prepare such standards. - 
*‘ At the request of the East India Company, twenty sets of instruments 
for proposed meteorological observations in India have been examined and 
verified at Kew. 
“ The arrangements required for Professor Stokes’s experiments have been 
completed, and the experiments are now in progress. 
«The Council haye great pleasure in repeating their former expressions of 
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