RT Journal Article SR Electronic T1 On certain porphyrite bosses in northwestern New Jersey JF American Journal of Science JO Am J Sci FD American Journal of Science SP 130 OP 134 DO 10.2475/ajs.s3-38.224.130 VO s3-38 IS 224 A1 Kemp, James Furman YR 1889 UL http://www.ajsonline.org/content/s3-38/224/130.abstract AB