﻿CRYSTALLINE 
  ROCKS 
  OF 
  THE 
  ALPS. 
  Ill 
  

  

  types 
  of 
  rock 
  form 
  the 
  floor 
  for 
  both 
  the 
  Trias 
  and 
  the 
  Carboniferous. 
  

   With 
  respect 
  to 
  the 
  so-called 
  Silurians 
  in 
  the 
  map, 
  there 
  was 
  a 
  

   marked 
  difference 
  between 
  them 
  and 
  the 
  schists, 
  and 
  they 
  could 
  be 
  

   distinguished 
  by 
  careful 
  observers 
  ; 
  but 
  he 
  had 
  not 
  seen 
  the 
  schists 
  

   actually 
  underlying 
  them, 
  as 
  he 
  had 
  not 
  followed 
  the 
  outcrop 
  east- 
  

   ward. 
  

  

  If 
  Heim 
  was 
  right, 
  he 
  was 
  wrong 
  ; 
  but 
  from 
  his 
  knowledge 
  of 
  the 
  

   districts, 
  he 
  thought 
  it 
  probable 
  that 
  these 
  alleged 
  cases 
  were 
  in- 
  

   foldings 
  of 
  Jurassic 
  rock 
  in 
  the 
  older 
  crystalline 
  series 
  just 
  at 
  these 
  

   points, 
  and 
  that 
  it 
  would 
  be 
  found 
  there 
  was 
  a 
  very 
  important 
  

   difference 
  between 
  the 
  Belemnite 
  -bearing 
  rock 
  and 
  the 
  true 
  garnet- 
  

   schist 
  which 
  he 
  had 
  described 
  on 
  a 
  former 
  occasion. 
  

  

  