280  INDEX    TO    PUBLICATIONS    OF    U.   S.   GEOL.   SURVEY,     [bull.  177. 
Delaware,  maps,  geologic,  of.     (See  Map,  geologic,  of  Delaware. ) 
maps,  topographic,  of.     (See  Map,  topographic,  of  Delaware.) 
mineral  springs  of Bull  32,  p  51 
minerals  of,  useful MR  1882,  pp  674-675;  MR  1887,  pp  718-719 
Neocene  beds  of Bull  84,  pp  45-49 
paint,  mineral,  production  of.  .MR  1891,  p  597;  MR  1892,  p  818;  Ann  16,  iv,  p  698 
Potsdam  rocks  of Bull  81,  pp  123,  288 
sections,  geologic,  in.      (See  Section,  geologic,  in  Delaware. ) 
topographic  maps  of.     (See  Map,  topographic,  of  Delaware.) 
topographic  work  in Ann  18,  i,  pp  94,  95,  102;  Ann  19,  i,  p  90 
water  horizons  in Bull  138,  p  123 
wells,  deep,  in Bull  138,  pp  119-123 
woodland  area  in Ann  19,  v,  p  4 
Delaware  Bay  as  a  harbor Ann  13,  n,  p  174 
Delaware  River,  elevations  on,  and  drainage  area,  in  New  York WS  24,  pp  46-47 
flow  of,  measurements  of.  .Ann  19,  rv,  p  122;  Ann  20,  iv,  pp48,  84-86;  Ann 21,  iv, 
pp  76-77;  WS  15,  p  7;  WS  27,  pp  16,  23,  24;  WS  35,  pp  62-63 
profile  of WS  44,  pp  15-16 
Delessite,  analysis  of Bull  113,  pp  15, 17 
chemical  constitution  of Bull  125,  p  54 
Delhi  formation  of  California GF  66,  p  2 
Delta  harbors,  description  of Ann  13,  n,  pp  106-109 
Delta  swamps Ann  1 0,  i,  pp  271-282 
Deltas,  deposition  of,  by  glacial  streams  and  ordinary  rivers Mon  xxxiv, 
pp  55-57,  469-470 
formation  of Ann  5,  pp  104-108;  Mon  i,  pp  65-70;  Mon  xi,  96-99 
glacial  marine,  especially  of  Maine Mon  xxxiv,  pp  371-376 
of  glacial  Lake  Agassiz Mon  xxv,  p  27 
Deltas  and  beaches  of  the  glacial  Lake  Agassiz Mon  xxv,  pp  276-381;  Bull  39 
Dendritic  tufa  of  Mono  Valley,  California Ann  8,  i,  pp  311-315 
Denison  beds  of  Texas Ann  21,  vn,  pp  266-288 
Denmark,  clay  deposits  and  industry  of Ann  19,  vi  cont,  pp  445-448 
clay  products  of,  at  Paris  Exposition Ann  21,  vi  cont,  p  374 
fossil  plants  of,  literature  of Ann  8,  n,  p  778 
Density  and  electrical  resistance,  relation  between,  when  varying  with  temper 
of  steel Bull  27,  pp  30-50 
Density,  gravity,  and  pressure,  terrestrial,  table  of  variation  of Ann  13,  n,  p  236 
Dentaliidse  from  clays  and  marls  of  New  Jersey Mon  xvrn,  pp  166-177 
from  Cretaceous  of  Pacific  coast Bull  133,  p  62 
Denton  beds  of  Texas Ann  21,  vn,  pp  272-273 
Denudation.      (See  Degradation.) 
Denver  Basin,  Colorado,  geology  of Mon  xxvn 
Denver  beds,  correlation  of Ann  18,  n,  p  348;  Bull  83,  pp  136-137, 145-146 
in  Denver  Basin Mon  xxvn,  pp  33-36,  89, 155-252,  311-316,  471-473; 
Bull  82,  p  231;  Bull  83,  pp  136-137, 145, 146;  Bull  84,  p  324 
Deposit,  analysis  of,  from  Nevada,  Providence  mine,  drain  tunnel. . .  Ann  17,  u,  p  123 
analysis  of,  from  Nevada,  Pyramid  Lake Bull  168,  p  276 
Deposition,  agency  of,  in  shaping  topographic  forms Mon  xxn,  pp  121-124 
conditions  of GF  59,  p  2 
in  Arizona,  Grand  Canyon  of  the  Colorado Ann  14,  n,  pp  517-518 
in  Newark  area Bull  85,  pp  45-53 
cycles  of,  remarks  on Mon  xxxin,  pp  49-50 
effect  of,  on  harbors Ann  13,  n,  pp  136-1 39 
