Issued, June 1888, F.M. Thorn, Superintendent. Verified : B.A. Colonna, Assistant in charge of Office ; Triangulation by C. Rockwell, Assistant ; Topography by J.J. Gilbert, Assistant ; Hydrography by Lieut. Comdr. A.S. Snow U.S.N., and J.J. Gilbert ; Astronomical observations by W.Eimbeck and G. Davidson, Assistants ; Verification of Hydrography by Lieut. Comdr. W.H. Brownson, U.S.N. Inspector of Hydrography ; reduced drawing of Topography by A. Lindenkohl ... hydrography by A. and H. Lindenkohl ; Outlines Title and Notes by H.M. Knight, Topography by W.A. Thompson and R.F. Bartle, Hydrography by H.M. Knight and A. Petersen, Sand by H.M. Knight and H.C. Evans. Coordinates approximate (Greenwich meridian) Depths shown by soundings and gradient shading (in low water areas); relief by contours and spot heights Variation compasses Bar scales in statute miles, nautical miles, kilometers Tides note, buoy legend, notes on elevations and soundings, latitude and longitude of Kalama Astronomical Station Shows drainage, vegetation, low water areas, islands, railroads, buildings, topography, divisions of land "No. 641b," "Plate no. 2004," "Electrotype Copy No. 1"