Appendix V. 



REPORT OF THE WORK OF THE ASTROPHXSICAL OBSERVA- 

 TORY FOR THE YEAR ENDING JUNE 30, 1901. 



Sir: The kinds and amounts of the Observatory property are approxi- 

 mately as follows: 



Buildings $6, 300 



Apparatus 31, 300 



Library and records , 5, 600 



Total 43, 200 



During the past year the acquisitions of property of the kinds just 

 enumerated have been as follows: 



(a) Apparatus. — Astronomical and physical apparatus has been pur- 

 chased at an expenditure of $1,300. 



(b) Library and record*. — The usual periodicals have been continued, 

 and various books of reference have been purchased at a total cost of $200. 



Total accessions of property, $1,500. 



The Observatory inclosure has been enlarged to include about 11,000 

 square feet, as against less than 6,000 square feet formerly. The cost of 

 fencing the grounds as thus enlarged was $400. 



Losses of property have been slight, and consist in the usual wear and 

 tear and breakage of apparatus, amounting in aggregate to $50. 



The Work of the Observatory. 



For convenience the work of the Observatory may be described under 

 the following headings: 



1. Publications and miscellaneous work. 



2. Progress of investigations. 



3. Eclipse expedition to Sumatra. 



(1) Publications and miscellaneous work. — As was stated in my last year's 

 report, Volume I of Annals of the Astrophysical Observatory was then 

 being issued. Owing to difficulty in obtaining satisfactory reproductions 

 of Plate XX, the actual distribution of the edition was delayed while fur- 

 ther efforts were made to improve this plate. New copies of it were pre- 

 pared and submitted to the engravers, and it was only in .March and April 

 of the present year that the edition was finally bound up and distributed. 

 In the effort to include as thoroughly as possible the names of those to 

 whom the book would be valuable, considerable time was spent in prepar- 

 ing the mailing list, but it is even yet possible that some persons much 

 interested in astrophysical work may have been overlooked by inadvert- 

 ence, but as there still remains a part of the edition applications for 

 copies will still be considered here. 



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