warman.j  NIAGARA NORITE.  573 
Nilkoka  formation  of  Alaska Ann  20,  vn,  p  472;  Alaska  (2),  p  (is 
Niobrara  Basin,  stream  measurements  in Ann  19,  iv,  pp  299-300; 
Ann  20,  iv,  pp  255,  301;  WS  15,  p  80;  WS  37,  pp  213-214 
Niobrara  formation  or  group  of  Black  Hills Ann  21,  iv,  pp  534-535 
of  Colorado Ann  17,  n,  pp  566-567, 571 ;  Mori  xxvn,  pp  66-68,  87, 107; 
Mon  xxxi,  p  41 ;    GF  9,  pp  6,  8;    GF  36,  p  3;  GF  58,  pp  1-2 
of  Kansas,  southwestern Bull  57,  pp  30-31 
of  Montana Bull  139,  p  46;  GF  1,  p  2;  GF  55,  pp  2,  6,  8 
of  Nebraska Aim  19,  iv,  pp  737,  7<i(); 
Bull  84,  pp  211,  220,  2W3-296,  331;  WS  12,  p  20 
of  Wyoming Bull  1 19,  pp  22-23;  GF  30,  p  5 
Nipigon  group  of  Lake  Superior  region Bull  86,  pp  61,  70, 195,  211,  468 
Nisconlith  series  of  Canada Bull  86,  ]  >  340 
Nisqually  Glacier,  Mount  Rainier,  present  condition  of \nn  18,  n,  pp  399-400 
Niter,  analysis  of,  from  Utah Bull  55,   p  88 
statistics  of MR  1 882,  ]  >] »  597-598 
Nitrilo-hexaphosphonitrilic  chloride,  analysis  of Bull  167,  p  135 
Nitrogen  in  uraninite,  occurrence  of,  and  composition  of  uraninite  in  general 
Bull  78,  pp  43-79 
Nitze  (H.  B.  C. ),  history  of  gold  mining  and  metallurgy  in  the  Southern  States 
Ann  I'D,  vi,  pp  111-123 
investigations  of  some  of  the  mineral  resources  of  Porto  Rico Vim  20, 
vi  cont,  pp  779-787 
monazite;  crystallography,  occurrence,  composition,  use,  etc,  <•!' Vnn  16, 
iv.  pp  667-693 
Nivenite,  analyses  of,  from  Texas,  Llano  County Bull  78,  p  72;   Bull  !>(>.  p  23 
Nizina  River,  Alaska,  features  of Vnn  21,  u,  pp  109-410 
Noatak  River,  Alaska,  notes  on Mask  a  (2),  p  Il".» 
Nodosauridae  of  North  America Ann  L6,  i,  p  225 
Nodosaurus,  remarks  on \nn  Hi,  i,p  225 
Nodules  resulting  from  external  attack .Mon  mi,  pp  68-72 
Nolichucky  River,  profile  of \ WS  44,  p  53 
Nolichucky  shale  in  Kentucky,  North  Carolina,  Tennessee,  Virginia,  and  West 
Virginia GF  12,  p  2;  GF  16,  p  4; 
GF  25,  p  3;  GF  27,  p  3;  GF  33,  p  2;  GF  44,  p  2;  GF  59,  p  3 
Nome  gold  region,  Alaska,  preliminary  report  on Nome 
Nomenclature,  general  geologic Ann  2,  pp  xli-xlvii 
of  igneous  rocks,  survey  rules  concerning Ann  19,  i,  pp  22-23 
of  pre-Cambrian Bull  86,  p  191 
(See,  also,  Correlation.) 
Nomenclature  and  classification  of  fossil  plants Ann  5,  pp  425-439 
Nomenclature  and  taxonomy,  geologic,  conference  of  geologists  and  lithologists 
on,  in  January,  1889 Ann  10,  i,  pp  56-67 
Nomini  quadrangle,  Maryland-Virginia,  geology  of GF  23 
Nonconformity.     (See  Unconformity.) 
Norfolk  quadrangle,  Virginia-North  Carolina,  physiography  of TF  2,  p  2 
Norian  rocks  of  New  England,  New  York,  and  Canada Bull  86,  pp  32, 
366,  395, 413,  451, 453-454,  457-458, 462,  465,  471,  474,  passim 
(See,  also,  Labradorian.) 
Norian  terrane  defined Bull  86,  p  462 
Norite,  analysis  of,  from  California,  Plumas  County Ann  14,  n,  p  473 
analysis  of,  from  Maryland,  Cecil  County Bull  168,  p  45 
from  Michigan,  Crystal  Falls  district / Mon  xxxvi,  pp  245,  263 
from  New  York,  Adirondack  region Bull  168,  p  37 
