PT  - JOURNAL ARTICLE
AU  - Walcott, Charles Doolittle
TI  - Notes on the Cambrian rocks of Pennsylvania from the Susquehanna to the Delaware
AID  - 10.2475/ajs.s3-47.277.37
DP  - 1894 Jan 01
TA  - American Journal of Science
PG  - 37--41
VI  - s3-47
IP  - 277
4099  - http://www.ajsonline.org/content/s3-47/277/37.short
4100  - http://www.ajsonline.org/content/s3-47/277/37.full
SO  - Am J Sci1894 Jan 01; s3-47