﻿FOURTH 
  REPORT 
  OF 
  THE 
  DIRECTOR 
  I907 
  

  

  117 
  

  

  Contents: 
  

  

  Formation 
  : 
  theoretical 
  mechanics 
  

   a 
  Dynamic 
  factors 
  pertaining 
  

  

  to 
  the 
  ice 
  body 
  

   b 
  Factors 
  relating 
  to 
  the 
  drift 
  

  

  held 
  in 
  the 
  ice 
  

   c 
  Factors 
  of 
  external 
  control 
  

   Drumlin 
  forms 
  and 
  observed 
  re- 
  

   lations 
  

   Relation 
  to 
  moraines 
  

   Special 
  features 
  

  

  Syracuse 
  island 
  masses 
  

   Montezuma 
  island 
  groups 
  

   Xondrumlin 
  areas 
  ; 
  open 
  spaces 
  

  

  Special 
  features 
  {continued) 
  

   Channels 
  among 
  the 
  drumlins 
  

   Summary 
  

  

  Age 
  of 
  the 
  drumlins 
  

  

  Thrust 
  motion 
  of 
  the 
  ground 
  

   contact 
  ice 
  

  

  Origin 
  

  

  Dynamics 
  

  

  Drumlin 
  forms 
  

  

  Depth 
  of 
  the 
  drumlin-making 
  ice 
  

   Drumlins 
  of 
  Ireland 
  

   Bibliography 
  

   Index 
  

  

  7 
  No. 
  115 
  Geology 
  of 
  the 
  Long 
  Lake 
  Quadrangle. 
  

   Cushing. 
  88p. 
  20pl. 
  i 
  map. 
  

  

  Contents: 
  

  

  Acknowledgment 
  

  

  Situation 
  and 
  character 
  

  

  General 
  geology 
  

  

  Rocks 
  

  

  Rock 
  structures 
  

  

  By 
  H. 
  P. 
  

  

  Topography 
  

   Glaciation 
  

   Economic 
  geology 
  

   Petrography 
  of 
  the 
  rocks 
  

   Index 
  

  

  No. 
  112 
  Mining 
  and 
  Quarry 
  Industry 
  of 
  New 
  York. 
  3d 
  re- 
  

   port. 
  By 
  D. 
  H. 
  Newland. 
  82p. 
  

  

  Contents: 
  

   Preface 
  

   Introduction 
  

  

  Mineral 
  production 
  of 
  New 
  York 
  

  

  in 
  1904 
  

   Mineral 
  production 
  of 
  New 
  York 
  

  

  in 
  1905 
  

   Mineral 
  production 
  of 
  New 
  York 
  

   in 
  1906 
  

   Iron 
  ore 
  

  

  Notes 
  on 
  recent 
  mining 
  develop- 
  

   ments 
  

   Millstones 
  

   Mineral 
  paint 
  

   Natural 
  gas 
  

   Arsenical 
  ore 
  

   Carbon 
  dioxid 
  

   Cement 
  

   Clay 
  

  

  Manufacture 
  of 
  building 
  brick 
  

   Other 
  clay 
  materials 
  

   New 
  manufacturers 
  of 
  clay 
  ma- 
  

   terials 
  

   Pottery 
  

  

  Clay 
  {continued) 
  

  

  Crude 
  clay 
  

   Emery 
  

   Feldspar 
  

   Garnet 
  

   Graphite 
  

   Gypsum 
  

   Peat 
  

  

  Petroleum 
  

   Pyrite 
  

   Quartz 
  

   Salt 
  

  

  Sand-lime 
  brick 
  

   Slate 
  

   Stone 
  

  

  Granite 
  

  

  Limestone 
  

  

  Marble 
  

  

  Sandstone 
  

  

  Trap 
  

   Talc 
  

  

  Zinc 
  and 
  lead 
  

   Index 
  

  

  