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1910. On the fossil faunas of the Saint Helens breccias. Proceedings and 



transactions of the Canada Royal Society, third series, volume Til, 



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 Age of the Gaspe sandstone. Bulletin of the Geological Society of 



America, volume 20, pages 688-698. 

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21, number 2, pages 295-312. Abstract. Science (new series), volume 



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1911. Some new mollusca from the Silurian formations of Washington County, 



Maine. Proceedings of the United States National Museum, volume 

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1912. Ralph Stockton Tarr, 1864-1912. American Journal of Science, fourth 



series, volume XXXIII, pages 515-516. 

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1913. Recurrent Tropidoleptus zones of the Upper Devonian in New York. 



United States Geological Survey, Professional Paper number 79, 103 

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New species of the Silurian fossils from the Edmunds and Pembroke 

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Correlation problems suggested by a study of the faunas of the East- 

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1916. The fauna of the Chapman sandstone of Maine, including descriptions 



of some of the related species from the Moose River sandstone. 

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1917. Nuculites from the Silurian formations of Washington County, ^Nlaine. 



Proceedings of the United States National Museum, volume LIV^ 

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V — Bull. Geol. Soc. Am., Vol. 30, 1918 



