SUBJECT INDEX 371 



Erie division (continued) 



oVanuxem. Erie Division. Geol. N. Y. pt3. 1842. p.l6, 146-85. 

 Vanuxem. Observations upon the Upper Part of tlie Erie Division. 



Geol. N. Y. pt3. 1842. p.170-72. 

 See also Erian. 

 Erie, Lake. Hall. Lake Erie. Geol. N. Y. pt4. 1843. p.407-13, 664. 

 Erratic blocks, see Drift. 

 Eruptive rocks, see Igneous rocks. 



Erythrite. Whitlock. Eiythrite. Mus. bul. 58. 1902. p.120-21. 

 Esopus grit (Cauda galli). Clarke & Schuchert. Esopus Grit. Mus. mem. 

 3. 1900. p.l2. 8ame, Mus. rep. 53 (for 1899) 1901. 2:12. 

 oDarton. Cauda-galli Grit; Esopus Slate. Geol. rep. 13 (for 1893) 1894. 



p.209-10. Same, Mus. rep. 47 (for 1893) 1894. p.403-4. 

 Darton. Cauda-galli Grit; Esopus Slates in Albany County. Geol. rep. 

 13 (for 1893) 1894. p.244-45. Same, Mus. rep. 47 (for 1893) 1894. p.438-39. 

 Darton. Cauda Galli Grit; Esopus Slate of Ulster County. Geol. rep. 13 



(for 1893) 1894. p.302-3. Same, Mus. rep. 47 (for 1893) 1894. p.496^97. 

 Ries. Esopus Slate of Greene County. Mus. bul. 44. 1901. p.786 Same, 



Mus. rep. 54 (for 1900) 1902. 3:786. 

 Ries. Esopus Slate of Orange County. Geol. rep. 15 (for 1895) 1897. 



p.402-3. Same, Mus. rep. 49 (for 1895) 1898. 2:402-3. 

 See also Cauda galli grit. 



Esopus millstones. Mather. Esopus Millstones. Geol. N. Y. ptl. 1843. 

 p.357. 



Essex, sandstone of. Emmons. Sandstone of Essex. Geol. rep. 2d dist. 

 (for 1837) 1838. p.230. 

 See also Potsdam sandstone. 



Essex county. Beck. Mineralogy. Min. rep. (for 1839) 1840. p.&4-66; (for 



1840) 1841. p.13-18. 

 Beck. Magnetic Oxide of Iron. Min. N. Y. 1842. p.14-17. 

 Emmons. Geology. Geol. rep. 2d dist. (for 1837) 1838. p.219-50; (for 1839) 



1840. p.281-83. Geol. N. Y. pt2. 1842. p.194-288. 

 Emmons. Magnetic Ore. Geol. rep. 2d dist. (for 1839) 1840. p.319-21. 



Geol. N. Y. pt2. 1842. p.231-63. 



Emmons. Ores of Newcomb (Mclntyre). Geol. rep. 2d dist. (for 1839) 

 1840. p.273-311. 



Emmons. Survey in the Interior of Hamilton, Essex and Franklin Coun- 

 ties. Geol. rep. 2d dist. (for 1840) 1841. p.113-33. 



Emmons. Minerals. Geol. N. Y. pt2. 1842. p.285-87. 



Finlay. Preliminary Report of Field Work in the Town of Minerva, 

 Essex Co. Geol. rep. 20 (for 1900) 1902. p.r96-102. Same, Mus. rep. 

 54 (for 1900) 1902. I:r96-102. 

 Geologic map of the town of Minerva, 21xl9cm. 



<4round Plan of Beds and Veins of Magnetic Oxide of Iron at Adiron- 

 dack, Essex Co. Geol. N. Y. pt2. 1842. pl.3-4. 



Hall, C. E. Laurentian Magnetic Iron Ore Deposits of Northern New 

 York. aius. rep. 32 (for 1878) 1879. p.133-40. Same, Geol. rep. 4 (for 

 1884) 1885. p.23-34, with geol. map of Essex county 48x40.5cm. 



Kemp. Preliminary Report on the Geology of. G«ol. rep. 13 (for 1893) 

 1894. p.431-72. maps (uncolored). Same, Mus. rep. 47 (for 1893) 1894. 

 p. 625-66. maps (uncolored). 

 Contains a bibliography on geology and mineralogy of Adlrondacks. 



continued. Geol. rep. 15 (for 1895) 1897. p.22-2;^, 575-614. Ipl. 



(phot.) maps. Same, Mus. rep. 49 (for 1895) 1898. 2:22-23, 575-614. Ipl. 



(phot.) maps. 



Map of Essex county, 20xl9cm. 



[First use of term. 



