RT Journal Article SR Electronic T1 On the supposed tadpole nests, or imprints made by the Batrachoides nidificans Hitchcock, in the red shale of the New Red Sandstone of South Hadley, Massachusetts JF American Journal of Science JO Am J Sci FD American Journal of Science SP 99 OP 104 DO 10.2475/ajs.s2-43.127.99 VO s2-43 IS 127 A1 Shepard, Charles Upham YR 1867 UL http://www.ajsonline.org/content/s2-43/127/99.abstract AB