134  INDEX    TO    PUBLICATIONS    OF    U.    S.    GEOL.    SURVEY,     [bull.  177. 
Altitudes  in  North  Dakota Bull  144,  pp  61-69 
in  South  Dakota Bull  144,  pp  61-69;  Bull  158,  pp  38-39,  48-49,  59, 108, 154-167 
in  Texas,  Black  and  Grand  prairies Ann  21,  vn,  pp  647-650 
in  United  States,  dictionary  of Bull  5;  Bull  76;  Bull  160 
map  showing Ann  13,  n,  pocket 
Alum,  foreign  sources  of MR  1883-84,  p  950 
in  Hawaii,  occurrence  of Ann  1 9,  vi,  cont,  p  685 
statistics  of MR  1882,  p  606;  MR  1883-84, 
pp  949-950;  MR  1886,  pp  681-682;  MR  1887,  pp  646-647 
Alum  Bluff  beds  of  Florida,  correlation  of. . .  .Ann  18,  n,  p  340;  Bull  84,  pp  112-113, 320 
Alum  rock,  so  called,  from  Grant  County,  New  Mexico,  analyses  of Bull  9,  p  13 
Aluminum,  alloys  of .MR  1892,  pp  249-254;  Ann  16,  in,  pp  539-540 
analyses  of MR  1883-84,  p  659 
bauxite  as  a  source  of MR  1892,  pp  236-240;  Ann  16,  in,  pp  542-544 
chemical  constitution  of  orthosilicates  of Bull  125,  pp  18-67 
manufacture  of,  in  Europe '. Ann  17,  in,  pp  245-251 
metallurgy  of— processes MR  1892,  pp  228-236 
ore  of  (bauxite),  analyses  of MR  1891,  pp  152-154 
properties  of — malleability,  conductivity,  tensile  strength,  etc MR  1892, 
pp  241-254;  Ann  16,  in,  pp  540-542 
sej  >aration  of,  in  rock  analyses Bull  78,  pp  87-90 
statistics  of MR  1882,  p  445;  MR  1883-84,  pp  658-660; 
MR  1885,  pp  390-392;  MR  1886,  pp  220-221;  MR  1887, 
pp  138-141;  MR  1888,  pp  160-164;  MR  1889-90,  pp 
110-118;  MR  1891,  pp  147-163;  MR  1892,  pp  227-254; 
MR  1893,  pp  156-167;  Ann  16,  in,  pp  539-546;  Ann  17, 
in,  pp  243-251;  Ann  18,  v,  pp  281-285;  Ann  19,  vi.  pp 
241-2-42;  Ann  20,  vi,  pp  267-268;  Ann  21 ,  vi,  pp  267-269 
uses  of Ann  18,  v,  pp  281-284 
Aluminum  and  titanium,  separation  of,  and  of  titanium  and  iron Bull  27,  pp  16-26 
Aluminum  chloride,  catalytic  action  of,  on  silicic  ethers Bull  113,  pp  63-76 
Aluminum  foil,  action  of  various  acids  on MR  1891,  p  157 
Alunite,  analysis  of,  from  Colorado,  Calico  Peak Ann  21,  n,  p  94 
analysis  of,  from  Colorado,  Custer  County Bull  90,  p  62 
from  ( \ )}( »rado,  Rosita  Hills,  Mount  Robinson Ann  21,  n,  p  94 
Alunite  pseudomorphs,  analysis  of,  from  Colorado,  Knickerbocker  Hill Ann  17, 
ii,  p  318 
Alunite  rocks  of  Colorado,  Rosita  Hills Ann  17,  n,  pp  314-319 
Alunogen,  analyses  of,  from  New  Mexico,  Grant  County Bull  9,  p  13 
Alurgite,  chemical  constitution  of Bull  125,  p  47 
Amalik  Harbor,  Alaska,  coal  at Ann  17,  i,  p  799 
Amaltheidse,  from  Colorado  formation Bull  106,  pp  168-181 
Amazon  stone,  occurrence  and  statistics  of MR  1882,  p  495;  MR 
1883-84,  p  781;  MR  1885,  p443;  MR  1886,  p  604,  MR  1887, 
pp556,  557;  MR  1888,  pp  584,  585;  MR  1889-90;  pp446,  447, 
448;  MR  1891,  p  540;  MR  1892,  p  781;  MR  1893,  pp681, 682; 
Ann  16,  iv,  pp  604,  605;  Ann  18,  vcont,p  1217;  Ann  19,  vi 
cont,  p  513;  Ann  20,  vi  cont,  p  599;  Ann  21,  vi  cont,  p  461 
Amber,  occurrence  and  statistics  of MR  1882,  p  498; 
MR  1883-84,  pp  779-780,  782;  MR  1885,  p  444;  MR  1886, 
pp  598,  605;  MR  1887,  p  558;  MR  1888,  p  583;  Ann  16,  iv,  p 
603;  Ann  17,  in  cont,  pp  917-918;  Ann  18,  vcont,  pp  1212-1213 
Amboy  clay,  correlation  of Bull  82,  p  215 
H  o  ra  of Mon  xxvi 
