vi CONTENTS. 



Chapter VII. Clays in Tertiary Formations — (Continued). page 



The Asbury clay, 145 



Stratigraphic relations, 145 



Occurrence, 145 



The Eocene marl, 147 



Chapter VIII. The Clays oe the Cretaceous Formation, 149-203 



The Marl series, 151 



The Clay Marl series, 152 



Clay Marl V — the Wenonah sand, 154 



Clay Marl IV — the Marshalltown marly clay,. 155 



Clay Marl III — the Columbus sand, 156 



Clay Marl II— the Woodbury clay, 157 



Character, 157 



Localities where worked, 158 



Clay Marl I — the Merchantville day, 159 



Character, 159 



Stratigraphic relations, 160 



Localities where worked, 161 



The Raritan Clay series, 161 



Of Middlesex county, 165 



Lignitic sandy clays, 166 



Sand bed, No. 4 — Laminated sands, . . 168 



The Amboy stoneware clay, 168 



Sand bed, No. 3, 172 



The South Amboy fire clay, 173 



Sand bed, No. 2 — The "feldspar kao- 

 lin" sand, 177 



The Woodbridge clay, 182 



The black, laminated clays, 184 



The fire clay, 186 



Intermediate beds, 190 



Sand bed, No. 1 — fire sands, 191 



The Raritan fire and potter's clay, .... 192 



Southwest of Middlesex county, 196 



Ten-Mile Run, 196 



Trenton clays, 197 



Bordentown, 198 



Florence, 199 



Burlington, 200 



Bridgeborough, 200 



Pensauken creel-:, 201 



Camden and southwest, 203 



Chapter IX. Clay Deposits in Systems older than the Creta- 

 ceous, 205-209 



Triassic, 205 



Devonian, 206 



Silurian, 206 



Cambrian and Ordovician, 207 



Pre-Cambrian, 208 



