Field Notebook: Maryland, Washington, DC 1921
Page 43
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Transcription
crocks. I think it is in the paper place just beneath the cystid zone but could not positively determine this. The general thickness appear as follows: Clark Mills beds from Tentaculite li up To cystid zone. 95'. Tentaculite beds. 388'. Baterium n Salina. 704. Niagara 340 1527 To this must be added. Beds above cystid zone at D. B. B. 146 Macrpleura beds. 5-2 1725'/ft. 246'. Christany D. B. B.