516 NEW YORK STATE MUSEUM 



Upper HJelderberg group (contin 



Hall & Simpson. Corals and Bryozoa of -the Upper Helderberg Group- 



Pal. N. Y. 188T. 6:69-174. pl.24-54. 

 Hall & Clarke. Trilobites and Other Crustacea of the Oriskauy, Upper 

 Helderberg, Hamilton, Portage, Chemung and Oatskill Groups. PaL 

 N. Y. 1888. V.7. 236p. 46pl. 

 Lincklaen. Upper Helderberg Limestones; Fossils. JIus. rep. 14 (for 



1860) 1861. p.60-65. 



Lincoln. Upper Helderberg Group of Seneca County. Geol. rep. 14 (for 



1894) 1895. p.87-92, 102. Same, Mus. rep. 48 (for 1894) 1895. 2:87-92, 102.. 



Luther. Upper Helderberg Group of Onondaga County. Geol. rep. 15- 



(for 1895) 1897. p.275-79. Same, Mus. rep. 49 (for 1895) 1898. 2:275-79. 



Merrill. Upper Helderberg or Corniferous Limestone. Mus. bul. 19. 1898. 



p.160. Same, Mus. rep. 51 (for 1897) 1899. 1:160. 

 Smock. Upper Helderberg Group. Mus. bul. 3. 1888. p.22; 10. 1890- 

 p.212-13. 



revised by Merrill. Mus. bul. 15. 1895. p.428. Same, ilus. rep- 



48 (for 1894) 1895. 1:428 (2d paging). 



revised by Merrill. Mus. bul. 19. 1898. p.202. Same. Mus. rep- 



51 (for 1897) 1899. 1:202. 

 Smock. QuaiTies. Mus. bul. 3. 1888. p.94-134; 10. 1890. p.238-55. 



revised by MerriU. Mus. bul. 15. 1895. p.432-47. Same, Mus. 



rep. 48 (for 1894) 1895. 1:432-47 (2d paging). 

 See also Corniferous limestone; Onondaga limestone; Seneca limestone- 

 Upper Pemtamerus limestone, see Becraft limestone; Pentamerus lime- 

 stone; Scutella limestone. 

 Upper Secondary system. Mather. Upper Seconda.ry System. Geol. N. Y. 



ptl. 1843. p.248-94. 

 Upper shaly limestone. Darton. Upper ShaJy Limestone of Ulster 

 County. Geol. rep. 13 (for 1893) 1894. p.303-4. Same, Mus. rep. 47 (for 

 1893) 1894. p.497-98. 

 Ries. Upper Shaly Limestone of Ulster County. Geol. rep. 17 (for 1897> 

 1899. p.456. Same, Mus. rep. 51 (for 1897) 1809. 2:456. 

 Upper Silurian. Clarke, Ruedemann & Luther. Contact Lines of Upper 

 Siluric Formations on the Brockport and Medina Quadrangles. Mus. 

 bul. 52. 1902. p.517-23. 

 Hall. Organic Remains. Pal. N. Y. y.2. 1852. 

 Merrill. Upper Silurian Svstem. Mus. bul. 19. 1898. p.150-58. Same,. 



JNlus. rep. 51 (for 1897) 1899. 1:150-58. 

 MerriU. Life of the Upper Silurian. Mus. bul. 19. 1898. p.l58. Same^ 



Mus. rep. 51 (for 1897) 1899. 1:158. 

 See also names of subdivisions; also names of classes of fossils, i. e. 

 Brachiopoda, Cephalopoda, etc. 

 Uraninite. Beck. Uranite. Min. N. Y. 1842. p.456. 



Whitlock. Uraninite. Mus. bul. 58. 1902. p.l23. 

 Utica. Smock. Stone Consti-uction in. Mus. bul. 10. 1890. p.333-36. 

 Utica shale (Black shale). Beecher. List of Species of Fossils fi-om an 

 Exposure of the Utica Slate and Associated Rocks in the Limits of 

 Albany, N. Y. Mus. rep. 36 (for 1882) 1883. p.78. 

 Clarke & Schuchert. Utica Shale. See New York series. 

 Conrad. Blue Fetid Limestones and Shales of Trenton Falls. Geol. rep. 



3d dist. rfor 1836) 1837. p.163-64 (ed.2, p.165-66). 

 Cumings. Historical Sketch, ilus. bul. 34. 1900. p.426-28. Some, Mus, 



rep. 54 (for 1900) 1902. 1:426-28. 

 Gushing. Utica Slate of Clinton County. Geol. rep. 15 (for 1895) 1897. 

 p.515-73. Same, Mus. rep. 49 (for 1895) 1898. 2:515-73. 



