﻿Special 
  Report 
  No. 
  4. 
  

   A 
  REPORT 
  ON 
  LOUISIANA 
  CLAY 
  SAMPLES 
  

  

  BY 
  

  

  Heine 
  icH 
  Ries 
  

  

  Localities 
  

  

  Explanation 
  of 
  Tests 
  

  

  Page 
  Page 
  

  

  Two 
  kinds 
  of 
  tests 
  264 
  Plasticity 
  264 
  

  

  Origin 
  of 
  Clays 
  

   Residual 
  265 
  Sedimentary 
  265 
  

  

  Structure 
  

   Two 
  types 
  265 
  

  

  Composition 
  

  

  Physical 
  Properties 
  of 
  Clay 
  

  

  Plasticity 
  266 
  Pjfect 
  of 
  heat 
  on 
  clay 
  268 
  

  

  Shri?ikage 
  267 
  Slaking 
  271 
  

  

  Fire 
  shrinkage 
  268 
  

  

  Physical 
  Tests 
  of 
  Louisiana 
  Clays 
  

  

  