XII CONTENTS. 



Part III — Continued. Page. 



Chapter XI. — The pre-Carboniferous rocks of the southwestern portion of the Narragansett Basin 381 



Little Compton and Newport Neck shales 383 



Quartzites of Natiek 383 



Chapter XII.— The Cambrian strata of the Attleboro district 386 



Cambrian brook localities 388 



Localities 1 and 2, southwest of North Attleboro 388 



Valley of locality 3 392 



Locality 4, northeast of Diamond Hill 393 



Maps and sections 391 



Index ; 395 



