50 



hepoet — 1889. 



days at Washington, Los Angelos, and Toronto, all reduced to the same 

 time-scale of 30-6 mm. for two hours, i.e., the time-scale of instruments 

 of the Kew pattern. 



Days in 1888 selected hij United States Naval Observatory for comparison 

 of magnetic disturbances of Declination and Horizontal Force. 



7, 14,15,23,24,27. 

 10, 11, 18, 19, 20, 21. 



8, 9, 10, 15, 16, 17, 18. 



3, 4, 5, 10, 11, 12, 13, 14. 30. 



6, 7, 8, 9, 10, 11,20,26. 

 3, 4, 5, 6, 21, 22, 23, 24. 



2, 7, 8,16,19,20,21,22,27,28. 



3, 15, 16, 17, 18, 19, 30. 

 8, 11, 12, 13, 14, 15, 19, 25, 26, 27. 



5, 11, 19, 20, 30, 31. 



4, 6, 16, 17, 18. 



7, 13, 14, 23, 24. 



The Committee are more than ever of the opinion expressed in their 

 Third Report, ' that the establishment of regular magnetic observatories 

 at the Cape of Good Hope and in South America would materially con- 

 tribute to our knowledge of terrestrial magnetism.' 



The Committee consider that it would be desirable to publish annually 

 in a collected form for certain selected days the curves of the three mag- 

 netic elements, i.e., declination, horizontal force, and vertical force, taken 

 at the difierent English and Colonial Magnetic Observatories, choosing 

 for selection in 1888 the days for which the curves are published in the 

 ' Greenwich Observations.' 



Report of the Committee, consisting of Professor Eobeets-Austen 

 {Chairman), Mr. T. Turner {Secretary), and Professor J. W 

 Langlet, appointed to consider the best method of establishing 

 International Standards for the Analysis of Iron and Steel. 

 {Drawn up by Mr. Thomas Turner.) 



The Committee, which was appointed at the Bath meeting with the object 

 above mentioned, requested the co-operation of several gentlemen of 

 special experience in the analysis of iron and steel, and is at present con- 

 stituted as follows : — Professor Roberts-Austen (Chairman), Sir P. Abel, 

 Professor Langley, Mr. Edward Riley, Mr. G. J. Snelus, Mr. John 

 Spiller, Professor Tilden, and Mr. Thomas Turner (Secretary). 



The Committee have held several meetings during the year, and con- 

 siderable correspondence has taken place in connection with the matters 

 which it was appointed to consider. Ultimately the objects of the 

 Committee were defined, and a number of suggestions were drawn up in 

 order to assist in carrying out these objects. These suggestions were 

 then published in various technical papers, before being finally revised, in 

 order to allow persons interested to make any further suggestions which 

 might appear advisable. After revision these proposals assumed the 

 following form : — 



