28 DREDGING AND HTDROGRAPHIC RECORDS OF 



Dredging Records of the Northwestern Pacific 



Position. 



Chart. 



Date. 



Time of 

 dav. 



Depth. 



Character of 

 bottom. 



H.O.1302. Aug. 11 



...do... 



.do... 



..do ' do. 



....do 



[10 to fO miles STT. of Koshika 

 Ids., Eastern Sea] — Con. 



Tsurikake Saki Lt., east. 12 



miles (31° 37' 40" N., 129° 



26' E.). 

 Tsurikake Saki Lt., S. 88° E., 



18 miles (31° 38' 30" N., 



129° 19' E.). 

 Tsurikake Saki Lt., S. 84° E., 



17.5 miles (31° 39' 40' N., 

 129° 20' E.). 



Tsurikake Saki Lt., S. 84° E., 



15 miles (31° 39' 10' N., 



129° 22' 30" E.). 

 Tsurikake Saki Lt., N. 67° E., 



13 miles (31° 33' N.. 129° 



26' 30' E.). 



Tsurikake Saki Lt., N. 62° E., 

 14.8 miles (31° 31.' N. 129° i 

 25' 30" E.). I 



[About 90 miles Wsn'. of \ 

 Kagoshima Gulf. Eastern 

 Sea.] 1 



Gwaja Shima. S. 37° E.. 37.5 H. O. 2194: 

 miles (30° 25' N., 129° 06' published 

 40" E.). .\pr.,1905. 



Gwaja Shima. S. 39° E., 37 do 



miles (30° 24' N., 129° 06' 



E.). 

 Gwaja Shima, S. 38° E., 34 do 



miles (30° 22' N., 129° 08' 



30' E.). 

 Kusakaki Jima, N. 18° E., do 



17.6 miles (30° 34' N., 129° 

 19' 30" E.). 



Kusakaki Jima, N. 10° E., do 



17.5 miles (30° 34' N., 129° 



22' E.K 

 Kusakaki Jima, N. 190° W., i do 



29 miles ( 30° 23' 30" N., 129° 



36' 30" E.). 



[In Colnett or Vincennes 

 Strait. ]a 



Blake Reef (largest rock), ' do. 



S.6°\V.; Kuchino Id..r.t. i 



S. 36° W. 

 Blake Reef (largest rock"), do 



S.25°\V.: Kuchino- Id., r.t. 



S. 48° W.; Nagada Saki Lt., 



N. 42° E. 



Blake Reef (largest rock), S do. . . 



17° W.: Kuchino Id., r.t. S. i 



42h° W.; Nagada SakiLt., 



N."4Si° E. 

 Blake Reef (largest rock), S do , 



4° W.; Kuchino Id., r. t. S. 



31§° W.; Nagada Saki Lt., 

 N. 56° E. 



Aug. 12 



....do.. 



8.01 p. m. 

 8.01 p. m, 



7.51 a. m, 

 8.22 a. m. 



..do I do.. .' 10.53 a. m. 



..do. 



...do... 

 ...do... 

 ...do... 



...do... 

 ...do... 



Aug. 14 



...do... 



.do... 



1.04 p. m. 

 1.36 p. m. 

 3.00 p. m. 



7.50 a. m. 

 8.16 a. m. 

 9.35 a. m. 



10.50 a. m. 



1.06 p. m. 

 1.28 p. m. 



2.24 p. m. 

 3.43 p. m. 

 4.30 p. m. 



8.01 p. m. 

 8.01 p. m. 



7.46 a. m. 

 8.14 a. m. 



8.51 a. m. 

 9.11 a. m. 



fms. 

 *425 

 *425 



427 



427 



**427 



361 



361 



**361 



**361 



440 

 440 



440 

 **440 

 **440 



*400 

 *400 



60 

 60-273 



273 

 273 



...do... 9.49 a.m. 316 



10.20 a.m. I 248 



391 gy. Glob., Oz... 

 391 I gy. Glob., Oz 



**391 I gy. Glob., Oz.**. 



**391 gy. Glol)., Oz.**.. 



gy. Glob., Oz. 



brk. Sh. 

 gv. Glob., Oz. 



"brk. Sh. 

 gy. Glob., Oz. 



brk. Sh.** 



gj-. S., Glob., brk. 



Sh, 

 gv. S., Glob., brk. 



"Sh. 

 gv. S., Glob., brk. 



"Sh.** 



gy. S., Glob., brk. 

 Sh.** 



Glob., Oz 



Glob., Oz 



Glob., Oz 



Glob., Oz.* 



Glob,, Oz.* 



Co 



Co 



rky.(?) 

 rky.(?) 



Co., S., brk. Sh . 



Co., S.,brk. Sh. 

 For. 



a The position of stations D. 4922, D. 4923. II. 4881, II. 4882, H. 4883, are given by true bearings as 

 observed on each station. The variation used is 4° 43' west, instead of 3° 35' west, as given on H. O. 

 chart 2194, the former variation being the result of a determination made by swinging ship under favor- 

 able conditions in this vicinity on August 12, 1906. These bearings do not plot on H. O, chart 2194, owing 

 to chart's inaccuracy. (Navigator.) 



