A remarkable occurrence of calclte in silicified woodDOI: info:10.5479/si.00963801.53-2200.227v. 53No. 2200227–230, 3 pls.
Wherry, Edgar T. 1917. "A remarkable occurrence of calclte in silicified wood." Proceedings of the United States National Museum, 53, (2200) 227–230, 3 pls.. https://doi.org/10.5479/si.00963801.53-2200.227.