2U! HI'l'OKr OF fOMMISSIONKK OF FlSIf AND FISHERIES. 



stivtioii at 11 :.'>."> ]>. in. We came to lor tlic ni^lit, iiioN'iiii;- ii[) off Wash- 

 iiigtoii street tli<' lollowiiij^- inoniing. AVe reiiiaincd at anchor until 

 October 25, when, at II :40 a. in,, Ave left for the Mare Island navy-yard, 

 arriviiij;!" at 3 p. m. A general overhauling was commenced imme- 

 diately, the work hein^" done, as far as practicable, by our own crew. 



li'r.siilts of ojx'rations OH Ike coasts of Washiiif/fon, Orcf/on, ((nd Cali- 

 Joniid. — Active operations foi- the season liaAing been brought to a 

 (tlosc with the jn-actical completion of the examination of the coasts of 

 Washington ami Oregon, and a good beginning in northern California, 

 it may not be out of place to give here a brief synopsis of the general 

 results. A large part of our work has necessarily been hydrographic, 

 as there were but few soundings on the charts and none outside of the 

 50-fathom curve. Lines of soundings were run off' shore at intervals of 

 5 to 10 miles, defining the 200-fathom curve from Cape Flatteiy to the 

 vicinity of Cape Mendocino. More detailed examinations were made in 

 several localities hereafter mentioned. The fisheries will be prosecuted 

 inside of 10® fathoms on the Pacific coast for years to come, and while 

 for obvious reasons our investigations extended to the 200-fathom line, 

 we will limit the discussion to areas within the former depth. 



The soundings off' Caj)e Flattery were irregular, an<l suggested the 

 existence of submarine ridges lying parallel with the coast; and be- 

 tween the cape and Flattery Rocks, lying about 10 miles from shore, a 

 semicircular dei^ression Avas found having depths from 100 to nearly 

 200 fathoms; thence to Yaquina Head the depths increase regularly, 

 with the exception of the rocky i)atch or bank off Grays Harbor and 

 Shoalwater Bay, where elevations of a few fathoms Avere found. Be- 

 tween Yaquina Head and Umpquah River lies a submarine plateau, 

 triangular in form, Avith depths less than 100 fathoms, Heceta Bank 

 marking its southwestern extremity. Thence to Cape Mendocino the 

 soundings Avere quite regular. 



The 100-fathom curA^e forms an irregular line, at varying distances 

 from shore, as sliown l)y the i'ollowing table: 



JMstance of the 100-falhom curve from shore. 



These cover an area in round numbers of 3,700 square miles on the 

 coasr, of Washington, 4,7r)() scjuare miles on the Oregon coast, and 1,100 

 square miles in nortluMii Caliloinia, a total of 0,010 s«jiiarc milrs. 



