478 NEW YORK STATE MUSEUM 



Pottery (continued) 



Ries. Directory of Maniifactnrers. Mns, bn'. 35. lOOO. p.91o-23. Same,. 

 Mils. rep. 54 (for 1900) 1902. 2:913-25. 



Ries. PotterT Glazes. Miis. bul. 44. 1901 p.672. Same, Mus. rep. 54 (for 

 19(10) 1902. 3:072. 



Pottsville conglomerate. Merrill. Pottsville Couslomerate. Mus. bul. 10.. 

 1898. p.167. Same, Mus. rep. 51 (for 1897) 1899. 1:167. 



Poug-hkeepsie. Smock. Stone Construction in. Mus. bul. 10. 18^0. 

 P.S21-22. 



Precambrian rocks, see Crystalline rocks. 



Precious stones. Catalogue of Gems and Precious Stones. Mus. r^-p. 41 



(for 1887) 1888. p.44-4S. 



Prehnite. Beck. Prehnite. Min. X. Y. 1842. p.349-50. Mus. lep. 3 rcr. 

 ed. (for 1849) 1850. p. 141. 



Emmons. Cliiltonite. Geol. rep. 2d dist. (for 1837) 1838. p.251-52; (fur 

 1840) 1841. p.135. 



Emmons. Prehnite. Geol. rep. 2d dist. (for 1840) 1841. p.l35. 



WhiTlock. Prehnite. Mus. bul. 58. 1002. p. 105. 



Primary rocks. Emmons. Primitive Rocks. Geol. rep. 2d dist. (for 1SC6) 

 1837. P.106-1G. 120-21 (ed. 2, p.lOS-lS, 122-23). 



Emmons. Gra-nite, etc. Geol. rep. 2^ dist. (for 1836) 1837. p.109-20 (ed.. 

 2, p.111-22). 



Emmons. Classification of the Primary Rocks, comprehending those only 

 which have been obserxed in the northern district. Geol. N. Y. pt2. 

 1542. p.23. 



Mather. Metamorphic and Primitive Rocks and their Contents. Geol. 

 rep. 1st dist. (for 1840) 1841. p.103-5. 



Mather. Primary Rocks. Geol. N. Y. ptl. 1843. p.516-76. 



Vanuxem. Advantages of Studv in Ignited States. Geol. rep. 4th dist. 

 (for 1836) 1857. p.204-9 (ed. 2. p.206-11). 



Vanuxem. Primary Rocks. Geol. rep. 3d dist. (for 1839) 1&40. p.367-68.. 



See aim Archaean; Crystalline rocks. 



Primary system. Vanuxem. Primary System. Geol. N. Y". pt3. 1842. 

 p.l5. 17-21, 195. 



Primitive limestone. Emmons. Primitive Limestone. Geol. r>-p. 2d 

 dist. (for 1837) 1838. p.196-2'05. 



Emm' T-«. Primitive Limestone; l2:neous Origin. Geol. N. Y. pt2. 184?.. 

 p.37-67. 



Er.n.mons. Primarv Limestone in Essex County. Geol. X. Y'. pt2, 1842. 

 p.225-29. 



Emmons. Primarv Limestone in St Lawrence Countv. Geol. X. Y". it'. 

 1842. p.340. 



Emmons. Primitive Limestone in "Warren Countv. Geol. rep. 2d d St.. 

 (for 1S38) 1839. p.236. Geol. X. Y. pt2. 1842. p. 175-76. 



Gale. White or Prima rA- Limestone of Xew York County. Geol. re 3. 

 1st dist. (for 1838) 1839. p.191-92. 



Horton. White Limestone. Primitive or Granular Limerock. Geol. lep. 

 1st dist. (for 1838) 1839. p.130-41. 



Vanuxem. Primitive Limestone in Lewis Countv. Geol. X. Y. pt3 

 1H42. p.266. 



See also CiTstalline rocks. 



Prochlorite. V^hitlock. Prochlorite. Mus. bul. 58. 1902. p. 112. 



Protean group. oVanuxem. Protean Group. Geol. rep. 3d dist. (for- 

 18;/.7» 1JS.VS i).2S4; (for 1^38i bS^,^ p.24<i-49; (for 1839) 1840. p.37i-75. 



See also Clinton grouip; Niagara group. 



a First use of term. 



