ON SCIENCE-LECTURES AND ORGANTZATION. 505 



2. Could accurate copies of such traces be procured ? and on what terms ? 



3. Could accurate copies of the hourly tabulated values from such traces 

 be procured? and on what terms? 



The following answer has been received : — 



Kew Observatory, Eichmond, Surrey, S.W., 

 June 5, 1872. 



Sir, — With reference to your letter of March 25th, addressed to the Kew 

 Committee of the Royal Society, I am instructed to send you the following 

 reply, which was adopted at their meeting of the 31st ult. : — 



1 . Resolved, that the Committee will be ready to afford facilities to men of 

 science to inspect and take notes of the traces of the Self-recording Magneto- 

 graphs ; application to be forwarded in each case to the Secretary of the 

 Committee, in order that arrangements may be made for the attendance of a 

 duly authorized person. 



2 & 3. The furnishing of unpublished results of tabulations not onlv in- 

 volves considerable expense, but would materially disturb the current work 

 of the Observatory. The Committee are therefore not prepared at present to 

 supply copies of such results. They would, however, if necessary, gladly 

 supply photographic copies of the instrumental traces at the cost of produc- 

 tion, and they hope that this would meet the requirements of the case. In 

 all three cases the cost would depend on the amount of time and labour 

 required. 



Your obedient Servant, 



Robert H. Scott, 



Professor H. E. Boscoe, F.R.S. Hon. Sec. 



The Kew Committee were thanked for their communication. 



The following questions were put to the Director of the Stonyhurst Ob- 

 servatory : — 



1. Might men of science be permitted to inspect the traces of the Stony- 

 hurst self-recording magnetographs, and to take notes of them ? 



2, Could accurate copies of such traces be procured? and on what terms? 



The following reply has been received from the Director of the Stonyhurst 

 Observatory : — 



Stonyhurst College, Blackburn. 

 April 3rd, 1872. 



Dear Sir, — In answer to the two questions appended to the circular with 

 which you favoured me this morning, I have little else to say than that I 

 shall always be most happy to place at any gentleman's disposal the curves 

 traced by the Stonyhurst instruments. I am at present working systematically 

 at the tabulation of the magnetograph traces, and I hope to be able in time 

 to publish the results, but this will not in the least interfere with any man 

 of science recommended by your Committee taking any notes he may require. 



Accurate copies of the distinct curves can easily be taken photographically ; 

 the assistant's time and the materials used will be the only things charged 

 for. I could not undertake any thing that would deprive me of the aid of 

 any of my assistants for any considerable time ; but a fair sacrifice I am quite 

 willing to make, and that is all I am sure you will expect. 



Yours sincerely, 



Professor Roseoe. S. J. Perrt. 



