[A] Strand and undertow markings, etc., New York State Museum, _Bulletin
No. 196, April 1, 1917_, pp. 199-210; pl. 20-23.
[B] Brick clays of Rhode Island, Massachusetts; Marbut and Woodworth,
_U.S. Geol. Survey, 17th Ann. Rep., Pt. 1_, p. 992.
Transcriber's Notes:
Passages in italics are indicated by _underscore_.
Printer's inconsistencies in spelling and punctuation have been
retained.