260  BIBLIOGRAPHY    OF    NORTH    AMERICAN    GEOLOGY 
Osborn  (Henry  Fairfield)— Continued. 
43.  The  evolution  of  the  horse  in  America.     First  complete  account  of  the  American 
Museum  explorations  under  the  William  C.  Whitney  fund. 
The  Century  Magazine,  vol.  69,  pp.  3-17,  15  figs.,  1905. 
44.  Ichthyosaurs:  The  evolution  of  fitness  in  ichthyosaurs. 
The  Century  Magazine,  vol.  69,  pp.  414-422,  7  figs.,  1905. 
45.  Recent  zoopaleontology. 
Science,  new  ser.,  vol.  21,  pp.  315-316,  1905. 
Gives  an  abstract  of  a  lecture  delivered  by  the  author  before  the  Society  of  Naturalists  at  the 
Philadelphia  meeting  upon  the  evolution  and  phylogeny  of  various  vertebrate  types. 
46.  Recent  vertebrate  paleontology.     Fossil  mammals  of  Mexico. 
Science,  new  ser.,  vol.  21,  pp.  931-932,  1905. 
Gives  notes  upon  the  fossil  mammals  of  Mexico  and  the  present  location  of  the  specimens. 
47.  Recent  vertebrate  paleontology. 
Science,  new  ser.,  vol.  22,  pp.  188-189,  1905. 
Notes  on  exploration  going  on  for  vertebrate  fossils  and  work  in  progress  in  museums  and 
laboratories  on  vertebrate  paleontology. 
48.  The  present  problems  of  paleontology. 
Pop.  Sci.  Mo.,  vol.  66,  pp.  226-242,  1905. 
49.  Ten  years'  progress  in  the  mammalian  paleontology  of  North  America. 
Congr.  intern,  de  Zool.,  6e,  Compt.  rend.,  pp.  86-113,  15  pis.,  7  figs.,  1905;  Am.  Geol.,  vol.  36, 
pp.  199-229,  7  figs,  1905. 
Gives  a  resume  of  the  progress  in  mammalian  paleontology  during  the  last  ten  years  and  indi- 
cates lines  of  exploration  and  research.  Discusses  phylogenetic  relations  of  various  mam- 
mals. 
50.  Tyrannosaurus  and  other  Cretaceous  carnivorous  dinosaurs. 
Am.  Mus.  Nat.  Hist.,  Bull.,  vol.  21,  pp.  259-265,  2  figs.,  1905. 
51.  Skull  and  skeleton  of  the  sauropodous  dinosaurs,  Morosaurus  and  Brontpsaurus. 
Science,  new  ser.,  vol.  22,  pp.  374-376.  1905. 
52.  The  evolution  of  the  horse. 
Brit.  Assoc.  Adv.  Sci.,  Rept.  74th  Meeting,  pp.  607-608,  1905. 
53.  Western  explorations  for  fossil  vertebrates. 
Pop.  Sci.  Monthly,  v.  67,  pp.  561-568,  6  tigs.,  1905. 
54.  [Phylogeny  and  classification  of  the  Reptilia.] 
Abstract:  Science,  new  ser..  vol.  21,  p.  294,  1905. 
55.  Evolution  of  the  horse.     Recent  discoveries  and  studies. 
Congr.  intern,  de  Zool.,  Sixieme,  Compt.  rend.,  p.  282,  19J5. 
Osborn  (Henry  Fairfield)  and  Granger  (Walter). 
1.  Fore  and  hind  limbs  of  Sauropoda  from  the  Bone  Cabin  quarry  [Wyoming]. 
Am.  Mus.  Nat.  Hist.,  Bull.,  vol.  14,  pp.  199-208,  6  figs.,  1901. 
Osgood  (Wilfred  H.). 
1.  Scaphoceros  tyrrelli,  an  extinct  ruminant  from  the  Klondike  gravels. 
Smith.  Misc.  Coll.,  vol.  48  (Quart.  Issue,  vol.  3,  pt.  2),  pp.  173-185,  6  pis.,  1905. 
Osmont  (Vance  C). 
1.  A  geological  section  of  the  Coast  Ranges  north  of  the  Bay  of  San  Francisco. 
Cal.  Univ.,  Dept.  Geol.,  Bull.,  vol.  4,  pp.  37-87,  2  pis.,  1  fig.,  1904. 
Describes  the  occurrence,  character,  and  relations  of  stratified  rocks  of  Jurassic,  Cretaceous, 
Tertiary,  and  Quaternary  age,  and  of  igneous  rocks  observed  in  cross  sections  of  the  Coast 
Ranges  of  California,  and  the  petrographical  characters  of  the  ig-neous  rocks,  and  discusses 
the  correlation  of  the  Eocene  strata,  the  geological  structure  along  the  sections,  and  the 
geologic  history  of  the  region. 
2.  Areas  of  the  California  Neocene. 
Cal.  Univ.,  Dept.  Geol.,  Bull.,  vol.  4,  pp.  89-100,  4  pis.,  1904. 
Gives  systematic  descriptions  and  discusses  the  occurrence  of  associated  fossils,  giving  faunal 
lists. 
