290  BIBLIOGRAPHY    OF    NORTH    AMERICAN    GEOLOGY 
Ruedemann  (Rudolf) — Continued. 
3.  The  graptolite  (Levis)  facies  of  the  Beekmantown  formation  in  Rensselaer  County, 
New  York. 
N.Y.  State  Mus.,  Bull.  no.  52,  pp.  546-575,  1  pi.,  1902. 
Describes  the  lithologic  and  faunal  characters  of  the  beds,  and  discusses  their  relations  and 
correlation  with  Canadian  and  European  strata  of  the  same  age. 
4.  Growth  and  development  of  Goniograptus  thureaui  McCoy. 
N.  Y.  State  Mus.,  Bull.  no.  52,  pp.  576-592,  19  figs..  1902. 
Discusses  the  ontogeny  of  the  species. 
5.  Noetling  on  the  morphology  of  the  pelecypods. 
Am.  Geol.,  vol.  31,  pp.  34-40,  1  pi.,  1903. 
Givesa  summary  of  Noetling's  view--  on  the  "  law  of  torsion  "  in  pelecypod  shellsand  the  rela- 
tions of  the  animal  and  the  position  of  its  shell. 
6.  Professor  Jaekel's  theses  on  the  mode  of  existence  of  Orthoceras  and  other  cepha- 
lopods. 
Am.  Geol.,vol.  31,  pp.  199-217,  1903. 
Gives  a  translation  of  Professor  Jaekel's  theses  and  some  of  the  discussion  following  (Zeit- 
schrift  der  Deutschen  geologischen  Gesellschaft,  54  Bd.,  2  Heft,  Protokolle,  pp.  67-101, 1902), 
and  discusses  these  propositions.    Includes  ••Annotations"  by  John  M.  Clarke. 
7.  The  Cambric  Dictyonema  fauna  in  the  slate  belt  of  eastern  New  York. 
N.Y.  State  Mus.,  Bull.  69,  pp.  934-958,  4  pis.,  1903. 
Describes  occurrence,  character,  geologic  position,  and  paleontology  of  Upper  Cambrian 
strata  in  Rensselaer  County,  New  York,  and  discusses  the  relations  of  the  Dictyonema  beds 
of  Scandinavia,  Great  Britain,  and  North  America,  and  the  bearing  of  the  latter  upon 
paleogeography. 
8.  Graptolites  of  New  York.     Parti.     Graptolites  of  the  lower  beds. 
X.  Y.  State  Mus.,  Mem.  7,  pp.  455-803,  17  pis.  and  105  figs.,  1904. 
Givesa  review  of  investigations  upon  the  graptolites,  discusses  their  structure,  morphology, 
classification,  phyllogeny,  range,  and  distribution,  and  giv.es  systematic  descriptions  of  the 
graptolites  from  the  upper  Cambrian  and  lower  Ordovician  of  New  York. 
9.  The  structure  of  some  primitive  cephalopoda. 
N.  Y.  State  Mus.,  Bull.  no.  80,  pp.  296-341,  .6  figs.,  1905. 
Ruedemann  (Rudolf),  Clarke  (John  M.)  and. 
1.  Guelph  fauna  in  the  State  of  New  York. 
See  Clarke  (J.  M.)  and  Ruedemann  (Rudolf),  1. 
Ruedemann  (Rudolf),  Clarke  (J.  M. ),  and  Luther  (D.  D.). 
1.  Contact  lines  of  Upper  Siluric  formations  on  the  Brocknort  and  Medina  quad- 
rangles [New  York]. 
See  Clarke  (J.  M.),  Ruedemann  (R.) ,  and  Luther  (D.  D.),  1. 
Ruhl  (Otto). 
1.  The  King-Ritter  fault. 
Drury  Coll.,  Bradley  Field  Geol.  Station,  Bull.,  vol.  1,  pp.  33-36,  1904. 
Describes  occurrence  and  character  of  faulting  along  the  northern  slope  of  the  Ozark  uplift 
in  southwestern  Missouri. 
2.  Observations  at  Pegmatite  Hill  (Camden  County,  Missouri]. 
Drury  Coll.,  Bradley  Field  Geol,  Station,  Bull.,  vol.  1,  pp.  36-40,  1904. 
Describes  the  geologic  structure  at  this  locality. 
Ruhm(H.  D.). 
1.  The  present  and  the  future  of  the  Mount  Pleasant  phosphate  field. 
Eng.  Assoc.  South.,  Trans.,  1902,  vol.  13,  pp.  42-64  [1903J. 
Describes  discovery,  occurrence,  and  production  of  phosphate  rock  in  the  Mount  Pleasant 
phosphate  field  of  Tennessee. 
Russell  (Israel  C). 
1.  Geology  and  water  resources  of  Nez  Perce  County,  Idaho.     Part  I. 
U.  S.  Geol.  Surv.,  Water-Supply  and  -Irrigation  Papers,  no.  53,  pp.  1-85,  10  pis..    1  tigs.,  1901. 
Abstract:  Am.  Geol.,  vol.  28,  pp.  31'.)  321,  1901. 
Describes  the  pre-Tertiary  terrain  ^.  the  Columbia  lava,  the  soils,  and  the  physiography. 
