44 



thJ u offic a e-con f ° f the thirty-five charts published by the Office dnriu J 



tinned. t hi s y- ear ten were en g rave( j and twenty five lithographed. 



Among those engraved were several from the Narragan- 



sett's survey on the Pacific coast and one sheet of the North 



Pacific Ocean. 



FISCAL TEAR ENDING JUNE 30, 1878. 



Early in this year the meteorological charts of the North 

 Pacific were published by the Office. Work was also 

 commenced on the preparation of similar charts for all 

 parts of the Atlantic. In October of the preceding year, 

 in order to encourage the merchant marine to collect. infor- 

 8uWJ°ni k !?: mati011 for these charts, blank books had been prepared 

 ques5n g me rnfor: and sent ont to ship-masters who desired toco-operate in col- 

 mation. lecting information, requesting that they be filled and re- 



turned to the Hydrographic Office. These blank books con- 

 tained forms for a complete meteorological record during a 

 voyage of three months at sea, together with instructions 

 for the use of the barometer, thermometer, &c. A set of 

 blanks, instructions, &c, was likewise issued to vessels of 

 the Navy, with directions requiring the observations to be 

 compiled by the navigator of the ship with especial reference 

 to their use in the construction of meteorological charts. 

 linOTdered^sHy- On the 17th of May, 1878, Capt. S. R. Franklin relieved 

 drographer. Captain Wyman as Hydrographer. 



The work of the Gettysburg, collecting hydrographic in- 

 formation concerning the Mediterranean, was brought to a 

 close when nearly completed by an accident to her machin- 

 ery. The Guard, under Lieut. OommanderF. M. Green, estab- 

 lished by means of the telegraph the difference of longitude 

 between Lisbon and Madeira, the Cape Verde Islands, and 

 Pernambuco ; also between Rio de Janeiro, Montevideo, and 

 Buenos Ayres. Soundings were .made by the Tuscarora, 

 Commander J. W. Philip, along the coast of Lower Cal- 

 ifornia ; and surveys of Tartar Shoal, and portions of the 

 west coast of Mexico, were made also by the same vessel, 

 the office tiousof Dnriu g the year sailing directions were published for "The 

 Mediterranean Sea, comprising the South Coast of France, 

 the West Coast of Italy, the Tuscan Archipelago, Corsica! 

 and Sardinia," compiled by Lieut. Commander H. H. Gor~ 

 ringe and Lieut. Seaton Schroeder. 



