﻿COASTS 
  OF 
  WASHINGTOlsr 
  AND 
  OEEGON. 
  13 
  

  

  becomes 
  stationary 
  the 
  wind 
  shifts 
  to 
  southwest 
  and 
  blows 
  heavily, 
  with 
  clearing 
  

   weather 
  and 
  frequent 
  rain 
  squalls. 
  The 
  barometer 
  rises 
  when 
  the 
  wind 
  hauls 
  to 
  

   southwest, 
  from 
  which 
  point 
  it 
  generally 
  blows 
  from 
  12 
  to 
  20 
  hours. 
  

  

  When 
  the 
  southwest 
  gale 
  of 
  winter 
  is 
  not 
  preceded 
  by 
  southerly 
  weather 
  the 
  barom- 
  

   eter 
  seldom 
  falls, 
  but 
  either 
  remains 
  stationary, 
  when 
  the 
  gale 
  may 
  be 
  expected 
  to 
  

   continue 
  longer, 
  or 
  rises 
  slowly, 
  when 
  it 
  will 
  gradually 
  subside 
  and 
  fine 
  weather 
  follow. 
  

  

  Fog. 
  — 
  On 
  the 
  outside 
  coast 
  fogs 
  are 
  liable 
  to 
  occur 
  at 
  any 
  time, 
  but 
  are 
  more 
  frequent 
  

   in 
  July, 
  August, 
  and 
  September. 
  * 
  * 
  * 
  In 
  the 
  northern 
  parts 
  of 
  the 
  coast 
  they 
  

   are 
  more 
  frequent 
  and 
  at 
  times 
  very 
  dense, 
  and 
  have 
  been 
  known 
  to 
  extend 
  several 
  

   hundred 
  miles 
  seaward. 
  They 
  are 
  generally 
  brought 
  in 
  toward 
  sundown, 
  from 
  sea- 
  

   ward, 
  by 
  light 
  westerly 
  winds, 
  and 
  ordinarily 
  continue 
  until 
  noon 
  of 
  the 
  following 
  

   day 
  and 
  sometimes 
  later. 
  

  

  CHARACTER 
  AND 
  TOPOGRAPHY 
  OF 
  THE 
  BOTTOM. 
  

  

  On 
  the 
  accompanying 
  two 
  charts 
  the 
  character 
  and 
  topography 
  

   of 
  the 
  bottom 
  have 
  been 
  graphically 
  represented 
  by 
  means 
  of 
  contour 
  

   lines 
  and 
  colors, 
  the 
  significance 
  of 
  the 
  latter 
  bemg 
  explained 
  in 
  the 
  

   legend 
  on 
  the 
  chart. 
  The 
  contour 
  lines 
  are 
  based 
  almost 
  wholly 
  on 
  

   the 
  Coast 
  and 
  Geodetic 
  Survey 
  charts 
  Nos. 
  5900, 
  6000, 
  and 
  6100, 
  wliich 
  

   in 
  turn 
  have 
  been 
  compiled 
  largely 
  from 
  the 
  Albatross 
  data 
  secured 
  

   in 
  1888-89. 
  The 
  curves 
  are 
  spaced 
  at 
  10-fathom 
  intervals, 
  begin- 
  

   nuig 
  at 
  30 
  and 
  ending 
  with 
  100 
  fathoms, 
  omitting 
  the 
  90-fathom 
  

   contom*, 
  wliich 
  nearly 
  approximates 
  the 
  100-fathom 
  line. 
  The 
  fish- 
  

   ing 
  sets 
  and 
  scallop 
  trials 
  made 
  during 
  the 
  survey 
  are 
  indicated 
  by 
  

   means 
  of 
  Roman 
  numerals, 
  the 
  exact 
  location 
  being 
  the 
  center 
  of 
  

   the 
  space 
  covered 
  by 
  the 
  letters. 
  The 
  location 
  of 
  sets 
  of 
  the 
  Idaho 
  

   are 
  shown 
  approximately 
  by 
  a 
  series 
  of 
  dotted 
  rectangles 
  numbered 
  

   in 
  order, 
  and 
  those 
  of 
  the 
  Chicago, 
  by 
  numbered 
  dotted 
  circles. 
  

  

  For 
  convenience 
  of 
  treatment 
  the 
  bottoms 
  surveyed 
  are 
  discussed 
  

   xuider 
  the 
  following 
  heads: 
  (1) 
  Grays 
  Harbor 
  section, 
  (2) 
  Tillamook 
  

   section, 
  (3) 
  Newport 
  section, 
  (4) 
  Heceta 
  Bank 
  section, 
  (5) 
  Coos 
  Bay 
  

   section. 
  The 
  intervening 
  stretches 
  are 
  considered 
  with 
  the 
  sections 
  

   with 
  which 
  they 
  can 
  be 
  most 
  readily 
  treated. 
  

  

  Grays 
  Harhor 
  section. 
  — 
  Off 
  Grays 
  Harbor 
  the 
  continental 
  shelf, 
  

   which 
  here 
  attains 
  a 
  width 
  of 
  about 
  25 
  to 
  30 
  miles, 
  is 
  covered 
  from 
  

   shore 
  outward 
  to 
  between 
  the 
  40 
  and 
  50 
  fathom 
  curves 
  with 
  fine 
  gray 
  

   sand, 
  and 
  beyond 
  that 
  line 
  out 
  into 
  deep 
  water 
  is 
  composed 
  almost 
  

   uniformly 
  of 
  green 
  mud. 
  An 
  outcrop 
  of 
  shale 
  was 
  found 
  on 
  one 
  

   sounding 
  about 
  25 
  miles 
  west 
  of 
  Point 
  Chehalis. 
  In 
  the 
  vicinity 
  of 
  

   Chehalis 
  Bank, 
  reported 
  by 
  Capt. 
  Tanner, 
  the 
  soundings 
  increased 
  

   regularly 
  in 
  depth 
  offshore, 
  and 
  showed 
  notliing 
  but 
  green 
  mud 
  from 
  

   the 
  46-fathom 
  mark 
  to 
  a 
  depth 
  of 
  64 
  fathoms 
  and 
  doubtless 
  beyond 
  

   that. 
  

  

  To 
  the 
  northward 
  of 
  this 
  reported 
  bank, 
  and 
  between 
  10 
  and 
  15 
  

   miles 
  offshore, 
  a 
  patch 
  of 
  gravel 
  bottom 
  was 
  found 
  in 
  38 
  to 
  40 
  fathoms. 
  

   It 
  is 
  apparently 
  of 
  considerable 
  extent, 
  and 
  though 
  no 
  halibut 
  were 
  

  

  