I06 CARNEGIE INSTITUTION 



Page 

 Prof. A. Ricco, Director of the Royal Observatories of Catania and 



Etna, Sicily I55 



Prof. A. Belopolsky, Imperial Observatory, Pulkova 156 



Prof. Cleveland Abbe, U. S. Weather Bureau, Washington 156 



Prof. G. Miiller, Royal Astrophysical Observatory, Potsdam, Ger- 

 many '57 



Prof. J. Hartmann, Royal Astrophysical Observ'atory, Potsdam, 



Germany I59 



E. Walter Maunder, Esq. , Royal Observ^atory, Greenwich 160 



Prof. Knut Angstrom, Royal University, Upsala, Sweden 164 



H. F. Newall, Esq., The Observatory, Cambridge, England 165 



Dr. Ralph Copeland, Astronomer Royal for Scotland 166 



Acknowledgments 170 



I. CORRESPONDENCE RELATING TO PROPOSED 

 SOUTHERN OBSERVATORY. 



Extracts from Confidential Statement. 



The following extracts from a confidential statement, prepared in 

 Jime, 1903, are prefixed to the letters relative to the proposed 

 Southern Observ^atory, in order to render more intelligible the com- 

 ments upon the statement contained in the letters: 



' ' The Advisory Committee on Astronomy tor last year of the 

 Carnegie Institution (Messrs. Pickering, Eangley, Newcomb, Hale, 

 and Boss) recommended the establishment of two observ^atories. 

 One of these was proposed for the southern hemisphere, to assist in 

 reducing the disparitj^ which now exists relative to the observation 

 of astronomical objects in the two hemispheres. The other is a pro- 

 posed solar or astrophysical observ^atorj', to be established in the best 

 practicable atmospheric conditions and with a powerful equipment. 



' ' The Institution is not in any way committed to either of these 

 enterprises at present. * * << Accordingly a special commission 

 of three astronomers (Messrs. Campbell, Hale, and Boss) was ap- 

 pointed to investigate and report more fully in regard to these 

 recommendations. * * * 



"Among the special obser\^ations that are regarded as important 

 are the following: 



(i) "A fundamental determination of star positions, with exten- 

 sion of these observations by secondary methods to include ever>' 

 star brighter than the seventh magnitude between — 20° and the 

 south pole. * * * 



(2) "Observations for stellar parallax have been secured at the 

 Cape Obsen'ator3^ Against this one observ^atorj^ we find several 

 observatories in the northern hemisphere actively engaged in deter- 



