FOR    THE    YEARS   1901-1905,   INCLUSIVE.  201 
Kraus  (Edward  H.) — Continued. 
6.  On  the  origin  of  the  caves  of  the  island  of  Put-in-Bay,  Lake  Erie. 
Am.  Geol.,  vol.  35,  pp.  167-171,  1  fig.,  1905. 
7.  Hydration  caves. 
Science,  new  ser.,  vol.  22,  pp.  502-503,  1905. 
Kraus  (E.  H.)  and  Reitinger  (J.). 
1.  Hussakite,  a  new  mineral,  and  its  relation  to  xenotime. 
Am.  Geol.,  vol.  30,  pp.  46-55,  1902. 
Describes  the  chemical  and  crystallographic  characters  of  the  material. 
Krebs  (Wilhelm). 
1.  Flutschwankungen  und  die  vulkanischen  Ereignisse  in  Mittelamerika. 
Globus,  Bd.  84,  pp.  72-74,  1903. 
Discusses  connection  between  high  tides  in  the  Pacific  Ocean  and  the  volcanic  activity  in 
Central  America  in  1902. 
Kroustchoff  (K.  de). 
1.  Note  sur  une  roche  basaltique  de  la  Sierra  Verde  [Mexico]. 
Soc.  Cient.  Ant.  Alz.,  vol.  16,  Rev.  pp.  17-26,  1901. 
Krusch  (P.). 
1.  Ueber  eine  Kupfererzlagersttitte  in  Nieder-Californien. 
Zeitsch.  f.  prak.  Geol.,  Jahrg.  1899,  heft  3,  pp.  83-86,  1899. 
Describes  occurrence  of  copper-ore  bodies. 
Kummel  (Henry  B. ). 
1.  Report  on  Portland-cement  industry  [New  Jersey]. 
N.  J.  Geol.  Surv.,  Ann.  Rept.  for  1900,  pp.  9-101,  11  pis.,  33  figs.,  1901. 
Describes  the  composition  of  Portland  cement,  and  the  character  and  occurrence  of  the  lower 
Paleozoic  rocks  from  which  the  materials  are  derived.    Includes  detailed  descriptions  of 
localities. 
2.  The  mining  industry.     [New  Jersey.] 
N.  J.  Geol.  Surv.,  Ann.  Rept.  for  1900,  pp.  197-217,  1901. 
Contains  statistics  and  notes  on  iron,  zinc,  and  copper. 
3.  The  mining  industry  [of  New  Jersey]. 
N.  J.  Geol.  Surv.,  Ann.  Rept,  for  1901,  pp.  133-161,  1902. 
Contains  notes  on  the  occurrence  of  iron,  zinc,  and  copper  ores. 
4.  Administrative  report  [of  the  State  geologist  of  New  Jersey]. 
N.  J.  Geol.  Surv.,  Ann.  Rept.  for  1902,  pp.  5-24,  1903. 
Reviews  the  work  of  the  New  Jersey  Geological  Survey  during  the  year  ending  October  31, 
1902. 
5.  The  iron  and  zinc  mines  [New  Jersey]. 
N.  J.  Geol.  Surv.,  Ann.  Rept.  for  1902,  pp.  115-123,  1903. 
Describes  the  occurrence  of  the  ores  and  the  mining  operations. 
6.  A  summary  of  the  work  of  the  Geological  Survey  of  New  Jersey,  with  a  subject 
index  to  its  reports. 
N.  J.  Geol.  Surv.,  Summary  and  Index  to  Repts.,  27  pp.,  1903. 
7.  Administrative  report  of  the  State  geologist. 
N.  J.  Geol.  Surv.,  Ann.  Rept.  for  1903,  pp.  xiii-xxxvi,  1904. 
•>      Outlines  the  work  of  the  New  Jersey  Geological  Survey  for  the  year  ended  October  31,  1903. 
8.  Administrative  report  [of  the  State  geologist  of  New  Jersey]. 
N.  J.  Geol.  Surv.,  Ann.  Rept.  for  1904,  pp.  3-25,  1905. 
9.  A  report  upon  some  molding  sands  of  New  Jersey. 
N.J.  Geol.  Surv.,  Ann.  Rept.  for  1904,  pp.  187-246,  1905. 
Describes  characters,  composition,  distribution,  and  geologic  relations. 
10.  Well  records  [New  Jersey]. 
N.  J.  Geol.  Surv.,  Ann.  Rept.  for  1904,  pp.  263-271,  1905. 
Gives  records  of  strata  passed  through  in  borings. 
