128  INDEX    TO    PUBLICATIONS    OF    U.    S.    GEOL.    SUKVEY.     [bull.  177. 
Alaskite  group  of  igneous  rocks,  definition  of,  and  description  of  species Ann  20, 
vn,  pp  189,  195-196 
Alaskite-porphyry,  analysis  of,  from  Alaska,  Fortymile  Creek Bull  168,  p  228 
Albertite  in  New  Brunswick,  Hillsborough,  occurrence  of Ann  17,  i,  pp  941-942 
Albirupean  series  of  deposits  and  flora Ann  15, 
pp  333-338,  369-375;  Bull  82,  pp  89-90,  94 
Albite,  analysis  of Bull  150,  p  206 
analysis  of,  from  California,  Plumas  County Ann  14,  n,  p  477 
from  Maine,  Litchfield Bull  43, 
pp  34-35;  Bull  148,  p  65;  Bull  150,  p  202;  Bull  168,  p  21 
from  Massachusetts,  Hampshire  County Bull  126,  p  12 
from  North  Carolina,  Mitchell  and  Montgomery  counties Bull  74,  p  56 
chemical  constitution  of Bull  125,  pp  13,  28,  29,  33,  36,  44,  101 
composition  of,  as  one  of  the  more  important  varieties  of  feldspar Ann  21, 
vi  cont,  p  594 
occurrence  of MR  1887,  p  562 
thin  section  of  altered  gabbro  from  Michigan,  Sturgeon  Falls,  showing 
veins  filled  with Bull  62,  p  69 
Albite  and  orthoclase  mixed,   analysis  of,  from  New  Llampshire,  Moulton- 
boro Bull  148,  p  67;  Bull  168,  p  23 
Albite-oligoclase,  analysis  of,  from  Maryland,  Baltimore Bull  148,  p  89; 
Bull  168,  p  49 
Albite-schist  from  Massachusetts,  Hoosac  Mountain,  description  of,  as  one  of 
the  educational  series Bull  150,  pp  325-327 
thin  section  of,  from  Massachusetts,  Hoosac  Mountain. .  .Mon  xxiii,  pp  112-113 
Albitic granite  and  pegmatite  dikes  of  western  Massachusetts. .  .Mon  xxix,  pp  323-330 
Albitic  mica-schist  of  western  Massachusetts Mon  xxix,  pp  66-75 
Albuquerque  district,  New  Mexico,  irrigation  in Ann  12,  n,  pp  270-273 
Alcohol,  compressibility  and  thermal  expansion  of Bull  92,  pp  30-32 
Aleutian  Islands,  coal  on,  localities  of Ann  1 7,  i,  pp  811-814 
lignitic  beds  of Bull  84,  pp  242-249 
notes  on Alaska  (2),  pp  115-117 
Aleutian  mountain  system,  Alaska,  structure,  etc.,  of Ann  20,  vn,  pp  238,  240 
Alexander  Archipelago,  coal  in,  localities  of Ann  17,  i,  pp  772-783 
gold  of Alaska  (2) ,  pp  101-102 
Algae  of  Alaska Ann  17,  i,  p  876 
of  hot  springs Ann  9,  pp  657-666 
of  Laramie  group Bull  37,  pp  13-14 
of  Lower  Coal  Measures  of  Missouri Mon  xxxvn,  pp  11-13 
Algeria)  iron  and  iron  ore  from,  statistics  of Ann  16,  in,  pp  24,  28,  174-476 
irrigation  in , Ann  1 1,  n,  pp  265-266 
Algonkian;  Huronian  defined Bull  86,  p  463 
Huronian  system,  history  of  the  term Bull  86,  pp  470-474 
Algonkian  and  Archean,  a  correlation  essay,  by  C.  R.  Van  Hise Bull  86 
Algonkian  history  of  Michigan,  Menominee  district .GF  62,  pp  11-12 
of  Montana,  Fort  Benton  quadrangle GF  55,  p  5 
Little  Belt  Mountains  quadrangle GF  56,  p  6 
Algonkian  period  to  be  used  in  Geologic  Atlas  of  United  States Ann  10,  i,  p  20 
Algonkian  rocks;  a  group  between  Archean  and  Cambrian,  necessity  for Ann  16, 
i,  pp  759-762 
Agate  Bay  group  of  Minnesota Mon  v,  pp  284-294 
Ajibik  quartzite  of  Michigan,  Marquette  district Ann  15,  pp  540-554,  610-611; 
Mon  xxvin,  pp  282-312,  528-529 
Aniniikie  group  of  Lake  Superior  region.  .Ann  3,  pp  157-163;  Ann  5,  pp  203-205; 
Ann  7,  pp  417-423;  Mon  v,  pp  367-386;  Mon 
xix,  pp  260-268,  468-470;  Bull  86,  pp  59, 187-189 
