On Excavations Made in Rocks by Sea-Urchins

• 1 January 1890
• journal article
• Published by University of Chicago Press in The American Naturalist
• Vol. 24  (277) , 1-21
• https://doi.org/10.1086/275054

Abstract

Keywords

• SEA URCHINS
• ROCKS BY SEA
• EXCAVATIONS MADE IN ROCKS