42 



printing, I am, and will be, unable to publish until further 

 appropriation is made. 



I believe, my dear sirs, that I have given you a little in- 

 sight into our situation. 



Very respectfully, your obedient servant, 



E. H. WYMAN, 

 Commodore, U. S. N., and Hydrographer. 

 Messrs. Biggs and Brother, 



221 Walnut Street, Philadelphia, Pa. 



FISCAL TEAR ENDING JUNE 30, 1877. 



th^crastrncdo ^ During 1877 the preparation of the Meteorological Charts 

 of i ^ et <?°roiogi- of the North Pacific Ocean, begun in the preceding year, was 



CB>1 O II HITS. 



continued, and at the close of that year they were ready for 

 publication. They extended from the equator to latitude 

 45° north, and from ihe west coast of the United States 

 westward to the 180th meridian. These charts were con- 

 structed by Lieut. T. A. Lyons, assisted from time to time 

 by a number of other officers, and gave for each month of 

 the year data concerning the " winds, calms, fogs, rain, 

 squalls, weather, barometer, and temperature of the air, and 

 of sea water at the surface." Lieutenant Lyons followed 

 the system adopted by Maury of dividing the surface of the 

 ocean into sections of 5° longitude by 5° latitude, and his 

 charts were arranged to show both graphically and descrip- 

 tively the information they contained. 



Searches for reported dangers, special surveys, &e, were 



made during the year by vessels on the several stations, 



Report of sur- an( j reports of such surveys or examinations were received 



veys, &c, made x v 



by naval vessels from the Pensacola, Captain Gherardi; the Vandalia, 

 Commander Robeson ; the Frolic, Commander G. B. White; 

 the Adams, Commander F. Rodgers; the Plymouth, Cap- 

 tain Barrett; the Ossipee, Commander S. L. Breese, and 

 the Gettysburg, Lieutenant-Commander Gorringe. 



The Gettysburg was employed during a portion of the 

 year in making surveys and collecting informatio:i concern- 

 ing the Mediterranean Sea at places where the Sailing- 

 Directions were deficient. On the voyage from the United 

 States to Europe, the Gettysburg made a series of deep-sea 

 ken°b° d thl 8 Get- soundings between the Azores and the Strait of Gibraltar, 

 tysburg. am i discovered a bank with but thirty fathoms of water in 



