586  INDEX    TO    PUBLICATIONS    OF    U.    S.    GEOL.    SURVEY,      [bull.  177. 
Oklahoma;  salt  from,  statistics  of Ann  19,  vi  cont,  pp  589, 
590;  Ann  20,  vi  cont,  pp  670,  678;  Ann  21,  vi  cont,  p  535 
salt  making  in,  history  of Ann  19,  vi  cont,  p  608 
sections,  geologic,  in.     (See  Section,  geologic,  in  Oklahoma.) 
topographic  maps  of.     (See  Map,  topographic,  of  Oklahoma;  also  list  on 
p  91  of  this  bulletin. ) 
topographic  work  in Ann  14,  i,  p  174;  Ann  15,  p  117;  Ann 
18,  i,  pp  94,  95;  Ann  19,  i,  pp  89,  90,  103;  Ann  20,  i,  p  102 
water  supply  of,  for  irrigation  purposes Ann  16,  n,  pp  521-522 
woodland  area  of Ann  19,  v,  p  11 
Oklune  series  of  pre-Tertiary  rocks  of  Alaska.  .Ann  20,  vn,  pp  163-169,  181-182,  187 
"Old  Red  Sandstone ' '  of  Lake  Superior  region Bull  81, 
pp  188,  194;  Bull  86,  pp  51,  52,  84,  passim 
Oleaceae  of  Alaska Ann  17,  i,  p  887 
of  North  America,  extinct Mon  xxxv,  pp  127-128 
of  Yellowstone  Park Mon  xxxu,  n,  pp  753-755 
Olenellus  howelli  from  Nevada,  Eureka  district,  observations  on. .  .Mon  viii,  pp  30-39 
Olenellus  shale  of  Nevada Mon  xx,  pp  45-47 
Olenellus  zone,  bibliography  of  rocks  and  fossils  of Ann  10,  i,  pp  516-524 
fauna  of  Lower  Cambrian Ann  10,  i,  pp  509-763 
genera  and  species  of,  notes  on Ann  10,  i,  pp  597-760 
geographic  distribution  of  fauna  of,  in  North  America  and  Europe Ann 
10,  i,  pp  564-581 
geologic  description  of Ann  10,  i,  pp  547-564 
historical  review  of,  for  North  America  and  Europe .Ann  10,  i,  pp  524-547 
Olentangy  River,  Ohio,  flow  of,  measurements  of Ann  20,  iv,  pp  215-216;  Ann 
21,  iv,  p  169;  WS  27,  pp  60,  65;  WS  36,  pp  175-176 
Oligocene,  inapplicability  of,  in  American  nomenclature Bull  83,  pp  16,  89 
Oligocene  fossils;  insects  from  Colorado  and  Utah Bull  93 
of  Oregon Ann  17,  i,  pp  465,  466,  467,  468 
Oligocene  history  of  Black  Hills Ann  21,  iv,  pp  558-561 
Oligocene  horizons,  correlation  of Ann  18,  n,  pp  330-332,  340-342 
Oligocene,  lower,  and*  Eocene  coral  faunas  of  United  States,  with  descriptions 
of  a  few  doubtfully  Cretaceous  species Mon  xxxix 
Oligocene  rocks  of  Florida Bull  84,  pp  104-105 
of  Louisiana Bull  142,  pp  24-25 
of  Oregon,  northwestern Ann  17,  i,  pp  464-469 
Oligoclase,  analysis  of,  from  Massachusetts,  Palmer Bull  126,  p  119 
analyses  of,  from  North  Carolina,  Bakersville,  and  from  Macon  County.  .Bull  60, 
p  130;  Bull  74,  p  55 
composition  of Ann  21,  vi  cont,  p  594 
occurrence  and  statistics  of MR  1887,  p  560;  Ann  16,  iv,  p  605;  Ann  17,  in 
cont,  p  924;  Ann  18,  v  cont,  p  1217;  Ann  19,  vi  cont,  p513 
Oliphant  (F.  H.) ,  natural  gas,  statistics  of Ann  18,  v  cont,  pp  895-918; 
Ann   19,  vi  cont,  pp    167-185;  Ann   20,    vi 
cont,  pp  203-224;  Ann  21,  vi  cont,  pp  293-318 
petroleum,  statistics  of Ann  18,  v  cont,  pp  747-893;  Ann  19,  vi  cont,  pp 
1-166;  Ann  20,  vi  cont,  pp  1-202;  Ann  21,  vi  cont,  pp  1-292 
Olive  grit  of  New  York-Vermont Ann  19,  in,  pp  179-180 
Olivenite  from  Utah,  Tintic  mining  district,  descriptions  and  analyses  of Ann  19, 
in,  p  697;  Bull  20,  pp  83-84;  Bull  55,  pp  39-40 
Olividse  of  Miocene  deposits  of  New  Jersey Bull  xxiv,  p  109 
Olivine,  analysis  of,  from  Kansas,  Kiowa  County  (meteoric) Bull  78,  p  94 
analysis  of,  from  Kentucky,  Elliott  County Bull  38, 
pp  24-25;   Bull  42,  p  136;  Bull  148,  p  92;  Bull  168,  p  56 
