FOR    THE    YEARS    1901-1905,    INCLUSIVE. 
38V) 
Upham  (Warren) — Continued. 
30.  Fjords  and  hanging  valleys. 
Am.  Geol.,  vol.  35,  pp.  312-315, 1905. 
Discusses  the  relations  of  these  physiographic  features  and  their  origin,  and  the  evidence 
they  give  as  to  the  cause  of  the  Glacial  epoch. 
31.  Age  of  the  St.  Croix  Dalles. 
Am.  Geol.,  vol.  35,  pp.  347-355, 1905. 
Discusses  various  Glacial  phenomena  of  the  region  and  their  bearing  upon  the  time  and  mode 
of  formation  of  the  Dalles  of  the  St.  Croix  River. 
32.  Glacial  lakes  and  marine  submergence  in  the  Hudson-Champlain  valley. 
Am.  Geol.,  vol.  36,  pp.  285-289, 1905. 
33.  <  reological  history  of  the  Great  Lakes  and  Niagara  Falls. 
Intern.  Quart.,  vol.  11,  pp.  248-265, 1905. 
Ussing  (N.  V.). 
1.  Mineralogisk-petrografiske   undersoegelser    af    Groenlandske   nefeliusyeniter   og 
beskegtede  bjasgarter. 
Meddelelser  om  Groenland,  vol.  14,  pp.  1-220,  7  pis.,  1898. 
Describes  mineralogy  and  petrology  of  Greenland. 
V. 
Vaillant  (Leon). 
1.  Sur  la  presence  du  tissu  osseux  chez  certains  poissons  des  terrains  palieozoiques  de 
Canyon  City,  Colorado.     • 
Acad. des  Sci.  [Paris],  Compt.  rend.,  t.  134,  pp.  1321-1322,  1902. 
Notes  the  presence  of  osseous  tissue  in  certain  fish  remains  from  Paleozoic  strata  near  Canyon 
City,  Colorado. 
Van  der  Grinten  (Alphons  J.). 
1.  New  circular  projection  of  the  whole  earth's  surface. 
Am.  Jour.  Sci., 4th  ser.,  vol.  19, pp.  357-366, 6  figs.,  1905. 
VanDiest  (P.  H.). 
1.  A  mineralogical  mistake. 
Colo.  Sci.  Soc,  Proc,  vol.  6,  pp.  150-156,  1  pi.  [1902]. 
Contains  observations  on  occurrence  of  rocks  and  ores,  and  describes  the  efforts  to  find  tin  in 
the  Greenhorn  Mountains  of  Colorado. 
Van  Hise  (Charles  R.) . 
1.  Some  principles  controlling  the  deposition  of  ores. 
Am.  Inst.  Mg.  Engrs.,  Trans.,  vol.  30,  pp.  27-177,  10  figs.,  1901.  Abstract:  Am.  Jour.  Sci..  4(h 
ser.,  vol.  11,  p.  90, 1901;  Eng.  &  Mg.  Jour.,  vol.  72,  pp.  699-702,  1901. 
This  subject  is  discussed  under  the  following  general  heads:  Three  zones  of  the  lithosphere; 
the  water  content  and  openings  in  rocks;  physico-chemical  principles  controlling  the  work 
of  underground  waters;  general  geologic  work  of  underground  waters;  the  precipitation  of 
ores  by  ascending  waters;  precipitation  of  ores  by  ascending  and  descending  waters  com- 
bined; the  association,  of  certain  ores;  concentration;  enrichment  and  diminution  of  rich- 
ness in  depth;  special  factors  affecting  the  concentration  of  ores,  and  the  classification  of 
ore  deposits. 
2.  The  iron-ore  deposits  of  the  Lake  Superior  region. 
U.  S.  Geol.  Surv.,  21st  Ann.  Rept.,  pt.  3,  pp.  305-434,  12  pis.,  1901. 
Describes  the  general  stratigraphy  and  occurrence  of  iron  ores  in  the  several  districts  of  the 
Lake  Superior  region.  The  Mesabi  district  is  by  C.  R.  Van  Hise  and  C.  K.  Leith.  The  Ver- 
milion iron-bearing  district  is  by  C.  R.  Van  Hise  and  J.  Morgan  Clements. 
3.  The  geology  of  ore  deposits. 
Science,  new  ser.,  vol.  14,  pp.  745-757,  6  figs.,  785-793,  1901.     Abstract:  Sci.  Am.  Suppl.,  vol.  52, 
p.  21504,  1901. 
Discusses  the  evidences  that  metallic  ores  and  gangue  are  deposited  by  underground  waters. 
4.  [Discussion  of  "Ice  ramparts,"  by  E.  R.  Buckley]. 
Wis.  Acad.  Sci.  Arts  and  Letters,  Trans.,  vol.  13,  pt.  1,  pp.  158-162,  5  pis.,  1901. 
Compares  the  phenomena  of  ice  deformation  with  those  of  crustal  deformation. 
