﻿ACADEMY 
  OF 
  SCIENCES. 
  

  

  247 
  

  

  '^^:SM^^^.^^^;^^k^m 
  

  

  Figure 
  1. 
  

  

  Figure 
  

  

  Figure 
  

  

  FiQUBK 
  1.— 
  The 
  ■beaoli 
  at 
  Gold 
  Bluff, 
  looking 
  south. 
  

  

  FiGUEE 
  2.— 
  Section 
  of 
  the 
  Bliiff. 
  A, 
  loam, 
  ten 
  feet 
  ; 
  B, 
  yellow 
  clay, 
  twenty 
  feet 
  ; 
  C, 
  yellow 
  gravel, 
  ten 
  

   feet 
  ; 
  D, 
  brownish 
  sandstone, 
  ten 
  feet 
  ; 
  E, 
  red 
  and 
  yellow 
  gravel, 
  forty 
  feet 
  ; 
  F, 
  blue 
  sandstone, 
  Ave 
  feet, 
  con- 
  

   taining 
  numerous 
  fragments 
  of 
  wood, 
  partially 
  transformed 
  into 
  lignite 
  ; 
  G, 
  coarse 
  red 
  and 
  yellow 
  gravel, 
  

   fifty-five 
  feet 
  ; 
  H, 
  very 
  fine 
  blue 
  gravel, 
  five 
  feet 
  ; 
  I, 
  indurated 
  sand, 
  fifteen 
  feet 
  ; 
  J, 
  gravel, 
  stained 
  red 
  with 
  

   oxide 
  of 
  iron, 
  ten 
  feet 
  ; 
  K, 
  blue 
  sandstone 
  with 
  lignite, 
  five 
  feet 
  ; 
  L, 
  sandstone 
  without 
  lignite, 
  five 
  feet 
  ; 
  

   M. 
  gravelly 
  beach, 
  seven 
  feet 
  to 
  low 
  water 
  mark. 
  Total, 
  about 
  227 
  feet. 
  ^ 
  ^ 
  x 
  ^x. 
  

  

  Figure 
  3.— 
  View 
  of 
  the 
  mine, 
  where 
  the 
  black 
  sand 
  is 
  collected 
  on 
  the 
  beach 
  and 
  transported 
  to 
  tna 
  

   works 
  on 
  the 
  backs 
  of 
  mules. 
  

  

  These 
  figures 
  are 
  from 
  drawings 
  by 
  Mr. 
  Ohase, 
  

  

  