FOR    THE    YEARS    1901-1905,   INCLUSIVE.  357 
Weller  (Stuart),  Kummel  (Henry  B. )  and — Continued. 
2.  The  rocks  of  the  Green  Pond  Mountain  region. 
See  Kiimmel  (H.B.)  and  Weller  (S.),  2. 
Weller  (Stuart),  Smith  (James  Perrin)  and. 
1.  Prodromites,  a  new  ammonite  genus  from  the  Lower  Carboniferous. 
See  Smith  (J.  P.)  and  Weller  (Stuart),  1. 
Wells  (Horace  L.). 
1.  Sperrylite,  a  new  mineral. 
Yale  Bicentennial  publications.  Cont.  to  Mineral,  and  Petrog.,  pp.  151-156, 1901.  (From  Am. 
Jour.  Sci.,  vol.  37,  pp.  67-70,  1889.) 
2.  On  the  composition  of  pollucite  and  its  occurrence  at  Hebron,  Me. 
Yale  Bicentennial  publications.  Cont.  to  Mineral,  and  Petrog.,  pp.  183-192,  1901.  (From  Am. 
Jour.  Sci.,  vol.  41,  pp.  213-220,  1891.) 
Wells  (H.  L.)  and  Penfield  (S.  L.). 
1.  On  a  new  occurrence  of  sperrylite. 
Am.  Jour.  Sci.,  4th  ser.,  vol.  13,  pp.  95-96,  1902. 
Describes  occurrence  in  platiniferous  copper  ore  from  Wyoming. 
Wells  (J.  Walter). 
1.  Arsenic  in  Ontario. 
Ontario  Bureau  of  Mines,  Rept.  for  1902,  pp.  101-122,  4  pis.,  1902. 
Describes  distribution,  manufacture,  production,  and  uses  of  arsenic. 
2.  Molybdenite — its  occurrence,  concentration,  and  uses. 
Can.  Mg.  Rev.,  vol.22,  pp.  113-118,  4  figs.,  1903;  Can.  Mg.  Inst.,  Jour.,  vol.  6,  pp.  47-65,  4  figs., 
1904. 
3.  Preliminary  report  on  the  raw  materials,  manufacture,  and  uses  of  hydraulic 
cements  in  Manitoba. 
Can.,  Dept.  of  the  Interior,  Mines  Branch,  Ottawa,  1905.    70  pp.,  7  pis. 
4.  Preliminary  report  on  the  industrial  value  of  the  clays  and  shales  of  Manitoba. 
Can.,  Dept.  of  the  Interior,  Mines  Branch,  Ottawa,  1905.    41  pp.,  8  pis. 
5.  Preliminary  report  on  the  limestones  and  the  lime  industry  of  Manitoba. 
Can.,  Dept.  of  the  Interior,  Mines  Branch,  Ottawa,  1905.    68  pp.,  8  pis. 
Wells  (W.  E.). 
1.  The  topography  and  geology  of  Clifton  Gorge. 
Ohio  Nat.,  vol.  4,  pp.  75-79,  2  figs.,  1904. 
Wendeborn  (B.  A.). 
1.  Die  Tiitigkeit  heisser  Quellen  in  den  Giingen  von  Wedekind,  Nevada,  V.  S.  N.-A. 
Berg-und  hiittenm.  Zeit.,  Jahrg.  63,  pp.  265-266, 1904. 
Discusses  the  ore  deposits  and  their  formation  by  the  agency  of  heated  water. 
2.  Die  Quecksilberablagerungen  in  Oregon. 
Berg-und  hutten.  Zeit.,  Jahrg.  63,  pp.  274-277, 1904. 
Describes  occurrence,  character,  and  geologic  relations  of  quicksilver-ore  deposits  in  Oregon. 
Wenstrom  (Olof). 
1.  Mineral  deposits  of  Santiago,  Cuba.     [In  discussion  of  paper  of  Harrison  Souder.] 
Am.  Inst.  Mg.  Engrs.,  Trans.,  vol.  35,  pp.  1008-1010,  1905. 
Contains  observations  on  the  geologic  structure  of  the  copper  deposits. 
Westgate  (Lewis  G.). 
1.  The  Twin  Lakes  glaciated  area,  Colorado. 
Jour.  Geol.,  vol.  13,  pp.  285-312,  14  figs.,  1905. 
Describes  the  pre-Glacial  topography  of  the  upper  Arkansas  Valley,  the  various  Glacial  fea 
tures  of  the  Twin  Lakes  region,  the  Glacial  erosion,  and  the  post-Glacial  changes,  and  dis- 
cusses mountain  form  and  its  origin. 
Wheeler  (George  D. ). 
1.  Zinc  in  Crittenden  County,  Kentucky. 
Eng.  &  Mg.  Jour.,  vol.  74,  pp.  413-414,  3  figs.,  1902. 
