NO. 3 SOLAR RADIATION AND THE WEATHER — CLAYTON 53 



Already the Brazilian service has begun to show an interest in the solar 

 observations and has requested their transmission from Chile. 



The ideal arrangement for this solar work would be to carry it on in 

 co-operation with the Smithsonian Astrophysical Observatory. If the work at 

 several widely separated observatories could be directed by one capable 

 institution, so that the methods could be uniform and the results comparable, 

 and then if it could be collected and weighted at the central office before cabling 

 to the various weather services of the world, probably a complete and reliable 

 day to day record of the solar changes could be obtained which would be of 

 the greatest value to practical meteorology. If the Smithsonian Institution is 

 unable or unwilling to do this work, then it is hoped that observatories will 

 be established by ■ several countries and some direct method of exchange 

 instituted. 



H. H. Clayton. 



Buenos Aires, April 5, 1919. 



