wakman]  TOURMALINE TRAP.  791 
Trachyte,  analysis  of,  from  Italy,  Balsena Ann  17,  i,  p  727;  Bull  89,  p  <><> 
analysis  of,  from  Montana,  High  wood  -Mountains Bull  L48, 
p  152;  Bull  L67,  p  131 
from  New  Mexico,  Los  Cerrillos Bull  L48,  p  L86;   Bull  L68,  p  172 
from  Tuscany,  Mount  Amiata  (glass  inclusion  in) Mon  xin,  p  160 
from  Yellowstone  Park,  Sunset  Teak. Mon  xxxn, 
ii.  p325;  Bull  148,  p  L32;  Bull  L68,  p  106 
from   Colorado,   Game  Ridge,   description   of,  as   one   of  the  educational 
series  of  rocks Bull  150,  pp  181-182 
of  ( 'olorado,  Pikes  Peak  quadrangle GF  7,  p  3 
Rosita  Hills Ann  17,  n,  pp  305-307,  343,  351-352,  360-362,  382  383 
of  Maine,  Aroostook  volcanic  area,  outcrops  and  petography  of Bull  165, 
1-1'  109-110,  161-164 
of  Montana,  Little  Belt  Mountains Ann  20,  in,  pp  524-525 
of  Philippine  Islands Ann  21,  in,  pp  517  5 is,  521-522 
of  Sierra  Nevada Ann  17,  i,  pp  677-699 
T/rachyte-andesite,  analysis  of,  from  California,  Tuolumne  County Pull  US, 
p  217;   Bull  L68,  p  205 
analysis  of,  from  Yellowstone  Park,  A.bsaroka  range Bull  L68,  p  98 
Trachyte-andesite-tuff,  analysis  of,  from  California.  Tuolumne  County Bull  148, 
p  217;   Bull  L68,  p  205 
Trachyte-porphyry  in  Montana,  Little  Pelt  Mountains  quadrangle GF56,p4 
Trachytic  dikes  and  sheets  in  Montana,  Fori  Benton  quadrangle GF  55,  p  3 
Trachytic  phonolite  of  Colorado,  Cripple  (  reek  district Vnn  hi.  n, 
pp  41-43,65,82,  85  86 
Trachytic  rock,  analysis  of,  from  Pantelleria Bull  107.  p  21 
Trade-marks  of  American  potters Vnn  17.  in  cont,  p  852 
Trade  wind  confined  within  narrow  vertical  limits \im  4,  p  L45 
Trails  in  Alaska Vnn  21 ,  1 1,  pp  415-418 
Trails,  burrows,  and  tracks  in  Lower  Cambrian Vnn  L0,  i,  pp  588,  602-604 
Transit  and  stadia  work  in  survey  of  I  da  ho- Mon  tana  boundary  line.. Bull  170,  pp  40-47 
Transportation  by  Landslip,  wind,  water,  ami  ice,  especially  in  Maine Mon 
xxxiv,  pp  10-22 
Transportation,  littoral Ann  5,  pp  85  '•'() 
(See,  also,  Degradation.) 
Transportation  and  corrasion,  agency  of,  in  shaping  topographic  forms Mon  xxn, 
pp  111-121 
Transporting  power  of  different  rates  of  river  flow Mon  xxxiv,  p  14 
Transvaal,  coal  production  of Vnn  21,  vi,  pp  113,  •':'>:;.  373 
,  gold  fields  in Ann  18,  v,  pp  156-157 
Main  Reef  series  in Ann  IS,  v,  pp  158-160 
quicksilver-ore  deposits  in MR  1892,  p  162 
Witwatersrand     hanket,     with     notes    on    other    gold-bearing    pudding 
stones Ann  18,  v,  pp  153-184 
Trap  dikes  of  Lake  Champlain  region Bull  107 
Trap  dikes  and  sheets,  characteristics  of Bull  85,  p  69 
Trap  ranges,  dikes,  and  sheets  of  Connecticut Ann  18,  n,  pp  41-81,  159-161 
Trap  rock,  analysis  of,  from  Connecticut,  Hartford  and  New  Haven  counties.  .Ann  20, 
vi  cont,  pp  364,  365 
analysis  of,  from  Connecticut,  Meriden Ann  18,  v  cont,  p  958 
from  Massachusetts,  Hampden  County Ann  20,  vi  cont,  p  405 
Mount  Holyoke Mon  xxix,  p  464 
from  New  Jersey,  various  localities Ann  20,  vi  cont,  p  419 
from  North  Carolina  near  Sanford  (decomposed) Bull  42,  p  138 
