REPORT OF ADVISORY COMMITTEE ON ASTRONOMY 



CONTENTS. 



Page 



Support of Astronomy in the United States 88 



Need for More Workers 88 



Proposal for a Southern Observatory 89 



Cooperation in Research. 90 



Problems for Research . . — . 90 



The Sidereal System 90 



The Solar Sj'stem 91 



Publication of Results 92 



Astrophysical Investigations 92 



In Relation to New Instruments 93 



APPENDICES. 



Appendix A. — Genei-al Plan for Furthering Special Researches in Astron- 



om)' ; by the Committee 94 



Sub- Appendix. — Proposal for a Distinctly Solar Observatory ; byS. P. 



Langley , 104 



Letter from Langley to Walcott on same subject no 



Appendix B. — Progress and Present State of Astronomj/ ; by Lewis Boss. . 112 

 Appendix C. — Progress and Present State of Certam Departments of Astro- 

 physical Research ; by George B,. Hale 128 



Appendix D. — The Quantity and Nature of Solar Radiation ; by S. P. 



Langley 144 



Appendix E. — Present State and Needs of Astronomical Research ; by 



Simou Newcomb. . . ..... 147 



Appendix F. — Progress and Present State of Celestial Photometry and 



Photography ; by E. C. Pickering 152 



To the Board of Trustees of the Carnegie In.stitution. 



Gentlemen : Out of the multitude of problems in general and in 

 detail which your Committee in its advisory capacity has studied with 

 care, the ituportance of certain general views concerning astronomical 

 interests has impressed itself on our minds. We think we ought to 

 state some of the most important of these at the outset, because of 

 their general application to all recommendations which we, as ad- 

 visers, desire to present for tlie consideration of the Carnegie 

 Institution. 



(S7) 



