212 REPOET OF COMMISSIONEE OF FISH AND FISHERIES. [96] 



NAVIGATION EEPOET OF LIEUT. SEATON SOHEOEDEE, 

 U. S. N., NAYIGATOE. 



The cruising of the Albatross during this first year of service has 

 been included between the parallels of 35° and 45'^ north latitude and 

 the meridians of 64° and 77° west longitude. The number of days un- 

 der way, the object of each trip, and the distances performed are given 

 in the following table : 



Date. 



Object. 



December 30, 1882, to January 3, 188S . . Wilmington, Del. , to Washington , D. G 



February 10 to February 14 Washington, D. C, to Wilmington, Del 



March 21 to March 25 Dredging 



April 24 to May 9 1 Dredging and investigating migrations of mack- 



I erel. 



May 19 to May 29 j do. 



June 17 to June 19 



July 6 to July 14 



Jiilv 18 to July 21 



July 25 



July 20 to August 3... 

 August 7 to August 10. 



August 12 



August 13 



August 18 



August 21 to August 25. 



August 29 to September 7 



September 11 



September 13 



September 20 to September 22 



September 30 to October 5 



October 11 



October 17 to October 19 



October 22 to October 25 



November 5 to November 14. 

 December 28 to December 29 



New York to Washington, D. C 



Investigating migrations of mackerel and menha- 

 den. 



Dredging 



Newport, R. I., to Wood's Holl, Mass 



Dredging 



Investigating migrations of mackerel and menha- 

 den. 



Newport, R. I., to Wood's Holl, Mass 



Wood's Holl, Mass. , to New Bedford, Mass 



New Bedford, Mass., to Wood's Holl, Mass 



Investigating migrations of mackerel and menha- 

 den. 



Dredging 



Wood's Holl, Mass., to New Bedford, Mass 



New Bedford, Mass., to Wood's Holl, Mass 



Dredging 



do 



Wood's Holl, Mass., to Newport, E. I 



Investigating migrations of mackerel and menha- 

 den. 



do 



Dredging 



Washington, D. C, to Baltimore, Md 



Miles. 



Total, 121 days . 



339.4 

 391.9 



425.4 

 1, 476. 6 



1, 025. 1 

 426.1 

 816.2 



446.6 



40.0 



682.3 



423.3 



40.0 



24.0 



24.0 



951.1 



859.5 

 24.0 

 24.0 



263.5 



586.7 

 40.0 



286.5 



411.7 



1, 020. 3 



180.0 



11,228.2 



The principal implements used in the navigation of the vessel com- 

 prise five box chronometers (three Negus, one Bliss &Creighton, and one 

 Parkinson & Frodsham), one Negus pocket chronometer, four Eitchie 

 liquid compasses (of which two are of the Navy Department design), 

 one Eogers portable micrometer telescope, and one Walker's and one 

 Bliss's patent log. These taffrail logs give perfect satisfaction if care is 

 taken to keep them oiled and not to strike the propeller against the 

 ship in hauling in ; they constitute the only means used for measuring 

 the speed of this ship through the water. 



The standard compass was placed on top of the deck-house, 15f feet 

 forward of the smoke-stack, 3 feet 11 inches above the deck. Lieut. 

 Commander T. A. Lyons, U. S. N., superintendent of compasses, Navy 

 Department, had found this to be the position where the needle was 

 least disturbed by the various magnetic forces exerted by the metal of 

 and in the ship ; it is also in a convenient position for use, being handy 



