476 NEW YORK STATE MUSEUM 



Tortage sandstones {continued) 



Luther. Stratigraphic Value of th« Portage Sandstones. Mus. bul. 52. 



1902. p.616-31. ! 



See also Oneonta sandstone. 

 Tortland cement, see Cement. 



Potash. Beck. Sulphate of Potash, Carbonate of Potash, Muriate of Pot- 

 ash, Hydrobromate of Potash. Min. rep. (for 1838) 1839. p.l7. Min. 



N. Y. 1842. p.201-2. 

 Totassium dichromate. Ries. Potassium Bichromate. Mus. bul. 44. 1901. 



p.671. Same, Mus. rep. 54 (for 1900) 1902. 3:671. 

 Totsdam sandstone. Clarke & Schuchert. Potsdam Sandstones. See New 



York series. 

 Conrad. Potsdam Sandstone. Pal. rep. (for 1840) 1841. p.31. 

 Gushing. Potsdam Sandstone of Clinton County. Geol. rep. 13 (for 1893) 



1894. p.476, 478-79. Same, Mus. rep. 47 (for 1893) 1894. p.670, 672-73. 

 Geol. rep. 15 (for 1896) 1897. p.510-73. Same, Mus. rep. 49 



(for 1895) 1898. 2:510-73. , 



■ Geol. rep. 19 (for 1899) 1901. p.r63-66. Same, Mus. rep. 53 



(for 1899) 1901. l:r63-66. 

 Gushing. Report on the Boundary betTveen the Potsdam and pre- 



Gambrian Rock-s North of the Adirondacks. Geol. rep. 16 (for 1896) 



1899. p.1-27. map (uncolored) 18x31cm. Same, Mus. rep. 50 (for 1896) 



1899. 2:1-27. map (uncolored) 18x31cm. 

 Darton. Potsdam Sandstone in Mohawk Valley Region. Geol. rep. 13 



(for 189S) 1894. p.410-17. Same, Mus. rep. 47 (for 1898) 1894. p.604-11. 

 «Emmons. Sandstone of Potsdam. Geol. rep. 2d dist. (for 1837) 1838. 



p.214-17. 

 Emmons. Accumulation of Materials composing the Potsdam Sandstone. 



Geol. rep. 2d dist. (for 1839) 1840. p.347-49. 

 Emmons. Potsdam Sandstone. Geol. N. Y. pt2. 1842. p.102-5. Ag. N. T. 



1846. 1:117-18. 



Emmons. Potsdam Sandstone in Clinton County. Geol. N. Y. vt2 

 1842. p.308-10. 



Emmons. Potsdam Sandstone in Essex County. Geol. rep. 2d dist. (for 



1837) 1838. p.230-32. Geol. N. Y. pt2. 1842. p.266-69. 

 Emmons. Potsdam Sandstone in Franklin County. Geol. N. Y. pt2 1842 



p.331-32. 



Emmons. Relations of the Potsdam Sandstone in Jefferson County. 



Geol. rep. 2d dist. (for 1839) 1840. p.322. Geol. N. Y. pt2. 1842. p.877-80. 

 Emmons. Potsdam Sandstone in St Lawrence County. Geol N Y pt2 



1842. p.300-61. 



Emmons. Potsdam Sandstone in Warren County. Geol. N Y pt2 1842. 

 p.177-79. 



Emmons. Fossils. ' Geol. N. Y. pt2. 1842. p.105, 268-69. 

 Fitch. Potsdam Sandstone of Washington County. Ag. Soc. Trans. 9 

 (for 1849) 1850. p.824-25. 



Hall. Potsdam Sandstone. Geol. N. Y. pt4. 1843. p.27-28. Pal N Y. 

 1859. 3:1-4. 



Hall. Organic Remains. Pal. N. Y. 1847. 1:1-4. 



Hall. Preliminary Notice of the Fauna of the Potsdam Sandstone, with 



remarks upon the previously known species of fossils and descriptions 



of some new ones from the sandstone of the upper Mississippi valley 



Mus. rep 16 (for 1862) 1863. p.119-209. Cpl. 



Also published in Alb. Inst. Trans. 1867. B:93-195. 



a First use of term. 



