202  BIBL10GKAPHY    OF    NORTH    AMERICAN    GEOLOGY 
Kummel  (Henry  B.)  and  Knapp  (George  N.). ■• 
1.  The  stratigraphy  of  the  New  Jersey  clays. 
N.  J.  Geol.  Surv.,  vol.  6,  pp.  117-209,  10  pis.,  1904. 
Describes  the  occurrence  and  geologic  relations  of  clays  of  Pleistocene,  Tertiary,  Cretaceous, 
and  older  systems  of  New  Jersey. 
Kiimmel  (Henry  B. )  and  Weller  (Stuart). 
1.  Paleozoic  limestones  of  Kittatiny  Valley,  New  Jersey. 
Geol.  Soc.  Am.,  Bull.,  vol  12,  pp.  147-164,  1901.     Abstract:  Science,  new  ser.,  vol.  13,  p.  134,1901 
Describes  the  lithologic  and  faunal  characters  of  the  subdivisions  of  the  Cambrian  and  Ordo 
vician  series  and  the  structure  of  the  region. 
2.  The  rocks  of  the  Green  Pond  Mountain  region. 
N.  J.  Geol.  Surv.,  Ann.  Rept.  for  1901,  pp.  1-51,  2  figs.,  6  pis.,  1902. 
Describes  geologic  occurrence  and  history  and  geographic  distribution  of  the  formations  of 
this  area,  and  gives  lists  of  fossils  determined. 
Kunz  (George  F. ). 
1.  Des  progres  de  la  production  des  pierres  precieuses  aux  Etats-Unis. 
Intern.  Cong,  geol.,  Compte  Rendu,  viii  session,  pp.  393-395,  1901. 
2.  Precious  stones  in  the  United  States  in  1901. 
Eng.  &  Mg.  Jour.,  vol.  7::.  p.  38,  1902. 
3.  Composition  of  tourmaline. 
Eng.  &  Mg.  Jour.,  vol.  73,  pp.  182-483,  1902. 
4.  Gems  and  precious  stones  of  Mexico. 
Am.  Inst.  Mg.  Engrs.,  Trans.,  vol.  32,  pp.  55-93,  1902. 
Describes  occurrence,  properties,  etc. 
5.  Californite  (vesuvianite),  a  new  ornamental  stone. 
Am.  Jour.  Sci.,  4th  ser..  vol.  16,  pp.  397-338,  1903. 
Describes  occurrence,  characters,  and  composition. 
6.  Native  bismuth  and  bismite  from  Pala,  California. 
Am.  Jour.  Sci.,  1th  ser.,  vol.  16.  p.  398,  1903. 
7.  On  a  new  lilac-colored  transparent  spodumene. 
Am.  Jour.  Sci.,  4th  ser.,  vol.  16,  pp.  264-267,  1  pi.,  1903;  Science,  new  ser.,  vol.  18,  p.  280,  1903. 
Describes  occurrence  and  characters. 
8.  Gem  minerals  of  southern  California. 
Abstract:  Science,  new  ser..  vol.  19,  pp.  107-108,  1904. 
Describes  the  occurrence  and  characters  of  some  gem  minerals  recently  discovered. 
9.  Clackamas  meteoric  iron. 
Abstract:  Science,  new  ser.,  vol.  19,  p.  108,  1904. 
Describes  the  occurrence  and  characters  of  a  meteoric  mass  recently  discovered. 
10.  The  exhibit  of  the  U.  S.  Geological  Survey  radium  collection  shown  at  the  St. 
Louis  Exposition. 
Abstract:  Science,  new  ser.,  vol.  21,  p.  665,  1905. 
Includes  brief  notes  on  the  Canon  Diablo  meteorite. 
L. 
Lacroix  (A.). 
1.  Les  roches  volcaniques  de  la  Martinique. 
Acad,  des  Sci.  [Paris],  Compt.  rend.,  vol.  134,  pp.  1246-1248,  1902. 
2.  Sur  les  cendres  des  eruptions  de  la  Montagne  Pelee  de  1851  et  de  1902. 
Acad,  des  Sci.  [Paris],  Compt.  rend.,  vol.  134,  pp.  1327-1329,  1902. 
Describes  characters  of  volcanic  ashes  ejected  from  Mont  Pele. 
3.  Les  roches  volcaniques  de  la  Martinique. 
Acad,  des  Sci.  [Paris],  Compt.  rend.,  vol.  134,  pp.  1369-1371,  1902. 
Describes  characters  of  volcanic  material  from  Martinique. 
