REPORT ON THE OPERATIONS OF EXCHANGES. Ill 



Hydrograpliic Office — Continued. 



Cliarts published during the year: 



No. 456. Gulf of Yeddo. 



No. 906. Wrangel Island. 



No. 907. Rodgers Harbor. 



No. 908. Rodgers Track. 



No. 911 a. Ciicumpolar chart. 



No. 911 h. Circumpolar chart. 



No. 912. Arctic Sea. 



No. 887. Amazon River, sheet 1. 



No. 307. Havana, Cuba. 



No. 888. Amazon River, sheet 2. 



No. 889. Amazon River, sheet 3. 



No. 890. Amazon River, sheet 4. 



No. 891. Amazon River, sheet 5. 



No. 892. Amazon River, sheet 6. 



No. 893. Madeira River, sheet 1. 



No. 894. Madeira River, sheet 2. 



No. 348. Port Royal, Kingston Harbor, Jamaica. 



No. 823. South Pacific Ocean, eastern sheet, lower part. 



No. 823 a. South Pacific Ocean, eastern sheet, upper part. 



No. 622. Coast of Mexico. 



No. 920. Port Malaga, Spain. 

 Nautical Almanac : 



American Naiatical Almanac for 1885. 

 American Nautical Almanac for 1886. 

 American Ephemeris and Nautical Almanac for 1885. 



Supplement to the American Ephemeris and Nautical Almanac for 1881-1884. 

 Astronomical Papers of the American Ephemeris, part 6. 

 Astronomical Papers of the American Ephemeris, Vol. I. 

 Bureau of Steam-Engineering : 



Rej)ort of the Board on the Mallory Steering and Propelling Screvr as applied to 



the United States torpedo-boat "Alarm." 

 Report on the vedette boats constructed for British and French navies by the 



HerreshoflSIanufacLuring Company. 

 Annual Report for 1882. 

 Admiral's Office : 



Annual Report. 

 Bureau of Medicine and Surgery: 



Annual Report 1880. 

 Bureau of Provisions and Clothing : 



Pay-table of the United States Navy. New edition. 

 Bureau of Yards and Docks : 

 Annual Report for 1832. 

 Naval Observatox'y : 



Astronomical and Meteorological Observations for 1878. 4<^. 



Appendix 1, 1878 : Monograph of the Centre! Parts of the Nebulas of Orion. 230 p. 



43 illustrations. 4°. 

 Appendix 2, 1878 : Longitude of the Observatory of the John C. Green School of 



Science, Princeton, N. J. 54 p. 4^. 

 Meteorological Observations for 1878. 18 p. 4°. 



Appendix 1. V for 1879. Parallax of A Lyra3 and 61 Cygni. 64 p. 4°. 

 Instructions for observing the Transit of Venus, December 6, 1882, prepared bv 



the commission authorized by Congress. 50 p. 4 plates. 4°. 



