Williamstown Limestone

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Taconic rocks and stratigraphy, with a geological map of the Taconic region; Part II
James D. Dana

American Journal of Science May 1887, s3-33 (197) 393-419; DOI: https://doi.org/10.2475/ajs.s3-33.197.393
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On Taconic rocks and stratigraphy, with a geological map of the Taconic regions; Part II
James D. Dana

American Journal of Science April 1887, s3-33 (196) 270-276; DOI: https://doi.org/10.2475/ajs.s3-33.196.270