Ivi REPORT — 1870. 



But the other matters mentioned in these siTggcstions are, I think, of 

 greater importance, more especially as, in the very valuable paper of results 

 produced by Sir E. Sabine, there would appear to have been contemplated 

 an exhibition to the world of the most valuable and important facts derived 

 from the Kew results, rather than an exhaustive reduction of the same (sec 

 paper No. 1), The Committee might, therefore, if the above outlay were 

 incurred, exhibit the distribution over the various months of every year of 

 the disturbed observations for the whole Kew series, and also esiubit the 

 solar-diurnal variations of the horizontal and the vertical force. 



If it be allowable to devote to this pui-pose £100 which I have in hand 

 from the Eoyal Society, it would so far lessen the expense, and in this case 

 c£400 might be regarded as the extreme limit of what would be incui-rcd. 



I remain, 



Yours very truly, 



13. Stewart. 

 J. r. Gassiot, Esq., 



Chairman of the Kciv Committee. 



Extracts from Minutes of Kew Committee held at Burlington House on 9lh 

 March, 1870, Present Mr. Gassiot (in the Chair), Sir E. Sabine, Sir C. 

 Wheatstonc, Col. Strange, Dr. Miller, Mr. Galton, Mr. De La Hue, Mr. 

 Spottiswoodc. 



" Kesolvcd, — That the following work be executed at Kew, under the 

 *' superintendence of Mr. Stewart. 



" Current Worh. 



" The work as defined in paragraph marked («), pagelii (General Sabine's 

 " Memorandum). 



" Arrears of WorJc. 



" 1st. Hourly tabulations from traces as defined in paragraph marked {b), 



" page liii (Mr. Stewart's statement). 

 " 2nd. Separation of disturbances and solar-diurnal variations, para- 



" graph (f), page liii. 

 " 3rd. Secular change and semiannual inequality, paragraph (d), page 



" liii. 

 " These arrears to be executed in accordance with the estimate (e), pagclv." 



It appearing that the only sum at the disposal of Mr. Stewart for back 

 magnetic work was £100, Mr. Gassiot ofrercd to supplement the diflTerencc 

 required, provided the sum required from him did not exceed £400. 



Ilesolved unanimouslj', — " That the Committee accept with thanks the 

 " munificent offer of their Chairman, and that Mr. Stewart be empowered 

 "to proceed with the work on the understanding that the total cost shall 

 *' not exceed £500." 



