478 NEW YORK STATE MUSEUM 



Pottery (continued) 



Hies. Directory of Manufacturers. Mus. bul. 35. 1000. p.913-25. Scu)ic r 

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



Kies. Pottery Glazes. Mus. bul. 44. 1901 p.672. Same, Mus. rep. 54 (for 

 1900) 1902. 3:672. 



Pottsville conglomerate. Merrill. Pottsville Conglomerate. Mus. bu!. 19. 



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

 Poug-hkeepsie. Smock. Stone Construction in. Mus. bul. 10. 1810. 



p.5121-22, 



Precambrian rocks, see Crystalline rocks. 

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



(for 1887) 1888. p.44-48. 

 Prehnite. Beck. Prehnite. Min. N. Y. 1842. p.349-50. Mus. lep. 3 re;\ 



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

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



1840) 1841. p.135. 



Emmons. Pr,ehnite. Geol. rep. 2d dist. (for 1840) 1841. p.135. 

 Whitlock. Prehnite. Mus. bul. 58. 1902. p.105. 

 Primary recks. Emmons. Primitive Rocks. Geol. rep. 2d dist. (for 18S6) 



1837. p.106-16, 120-20. (ed. 2, p.108-18, 122-23). 



Emmons. Granite, etc. Geol. rep. 2fd dist. (for 1836) 1837. p.109-20 (ed. 

 2, p.111-22). 



Emmons. Classification of the Primary Rocks, comprehending those only 



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



1842. 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 Study in United States. Geol. rep. 4th dist. 



(for 1836) 1837. p.204-9 (ed. 2, p.206-11). 



Vanuxem. Primary Rocks. Geol. rep. 3d dist. (for 1839) 1840. p.367-6S. 

 See also Archaean; Crystalline rocks. 

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



p.15, 17-21, 195. 

 Primitive limestcre. Emmons. Primitive Limestone. Geol. r^p. 2d 



dist. (for 1837) 1838. p.196-205. 

 Emm^ps. Primitive Limestone; Igneous Origin. Geol. N. Y. pt2. 1842. 



p.37-67. 

 , Etoiimo-ns. Primary Limestone in Essex County. Geol. N. Y. pt2. 1842. 



p.225-29. 

 Emmons. Primary Limestone in St Lawrence County. Geol. N. Y. it*. 



1842. p.340. 

 Emmons. Primitive Limestone in Warren County. Geol. rep. 2d d st. 



(for 1838) 1839. p.236. Geol. N. Y. pt2. 1842. p.175-76. 

 Gale. White or Primary Limestone of New York County. Geol. re"}. 



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

 Horton. White Limestone, Primitive or Granular Lirnerock. Geol. lep.. 



1st dist. (for 1838) 1839. p.139-41. 

 Vanuxem Primitive Limestone in Lewis County. Geol. N. Y. pt3. 



1842. p.266. 



See also Crystalline rocks. 



Prochlorite. Whitlock. Prochlorite. Mus. bul. 58. 1902. p.112. 

 Protean group. aVanuxem. Protean Group. Geol. rep. 3d dist. (for 



1S3~) 183H p.284; (for 1S8) 183J n.24(?-49; (for 1839) 1840. p.37i-75. 

 See also Clinton group; Niagara group. 



o First use of term. 



