ANNALS OF THE ACADEMY 63 



astronomers on account of the relatively long period of totality, 

 which afforded an unusual opportunity for a search for intra- 

 mercurial planets. A paper on this eclipse was read by Pro- 

 fessor C. A. Young at the meeting of November, 1882, at the 

 suggestion of Mr. Charles H. Rockwell, of Tarrytown, New 

 York," and the matter having thus been brought to the attention 

 of the Academy, was referred to the Council which reported the 

 following resolution: 



" The Council of the National Academy of Sciences, appreciating the impor- 

 tance of astronomical and physical observations of the total eclipse of the sun, 

 May 6, 1883, the long duration of which is especially favorable for observations 

 for the search of intra-mercurial planets and the study of solar physics, approves 

 the project of an expedition to some suitably situated island in the Pacific Ocean, 

 and recommends the appointment of a committee to commend it to persons 

 interested in the advancement of science, and to the Navy Department of the 

 United States, for such aid and facilities for the purpose as can be best 

 afiforded." =» 



This resolution was adopted by the Academy, and a com- 

 mittee consisting of Professor C. A. Young (chairman), Pro- 

 fessor J. H. C. Coffin, Dr. Henry Draper, Professor Asaph 

 Hall, Professor J. E. Hilgard, Professor Simon Newcomb, and 

 Professor H. A. Newton, was appointed to take charge of the 

 matter. Subsequently, on the death of Dr. Draper, Professor 

 S. P. Langley was appointed in his place, and Professor C. S. 

 Peirce was added to the committee. Mr. C. H. Rockwell was 

 also invited to join the committee " as having been the real 

 originator of the project." An endeavor to obtain funds for the 

 expedition by private subscription having proved unsuccessful, 

 the committee determined to appeal to the Government. 



Its representations to the Secretary of the Navy were very 

 favorably received, the naval vessel Hartford, Captain Car- 

 penter commanding, was placed at the disposal of the observing 

 party, and all necessary arrangements made to secure the success 

 of the expedition. 



'"Mr. Rockwell had presented a communication on the subject before the American 

 Association for the Advancement of Science in August of the same year. 

 " Proc. Nat. Acad. Sci., vol. i, p. 211. 



