warman]  MARYLAND.  503 
Maryland;  magnetic  declination  in .Ann  1 7,  I,  pp  354-355 
rnanganese-ore  production  ot Ann  16,  in,  p  416 
maps, geologic,  of.     (See  Map,  geologic,  of  Maryland.) 
maps,  topographic,  of.     (See  Map,  topographic,  of  Maryland;  also  pp  79-80 
of  this  bulletin. ) 
marble  production  of,  statistics  of MR  1882,  p  45; 
MR  1886,  p  541;  MR  1887,  p  518;  MR  1888,  p  541;  MR 
1889-90,  pp  400,  575;  MR  1891,  pp  468-469;  MR  1892,  p 
709;  MR  1893,  pp  547,  548;  Ann  1(5,  iv,  pp  437,  463,  464,  467; 
Ann  17,  in  cont,  pp  760,  766,  767,  768,  769;  Ann  18, 
v  cont,  pp  950,  975,  977,  978,  980;  Ann  19,  vi  cont, 
pp  207,  238,  239,  240,  243;  Ann  20,  vi  emit,  pp  271, 
281,  282,  283,  284;  Ann  21,  vi  cont,  pp  335,  341,  342,  343 
marl  in  Fredericksburg  quadrangle GF  13,  p  5 
in  Nomini  quadrangle -         <  i  K  23,  p  3 
mineral  spring  resorts  in Ann  14,  n.  p  83 
mineral  springs  of MR  1889-90,  pp  522,528;  MR  1891,  pp  603,  605;  M  R  1892, 
pp  824,  828;  MR  1893,  pp  774,  778,  7S4,  789,  704;  Ann  Hi,  iv, 
pp  709,713,  720;  Ann  17,  in  cont,  pp  1027,  1034,  1041; 
Ann  18,  v  cont,  pp  L371,  1371),  L386;  Ann  10,  vi  cont, 
pp  661,  600,  077;  Ann  20,  vi  cont,  pp  740,  758,  766;  Ann 
21,    vi   cont,    pp    600,    600-610,    619;    Bull    32,    pp    51-53 
minerals  of,  useful MR  1882,  pp  600-003;   M  R  L887,  pp  739-742 
Monocacy  River,  How  of,  measurements  of Ann  18, 
iv,  pp  34-35;  Ann  10,  iv,  pp  153-1:):);  Ann  20,  iv,  pp 
49,129-130;  Ann  21,  cv,pp  07  98;  WS  11,  p  11;  \VS 
15,  p   20;  WS   27,   pp   21.  24,  25;   WS   35,   pp   03-94 
Newark  system  in Bull  85,  pp  20, 85 
Nomini  quadrangle,  geology  of GF  23 
ocher  in  Harpers  Ferry  quadrangle GF  10,  p  4 
production  of MR  1801 ,  1 1  595 
Octoraro  Creek,  flow  of,  measurements  of Ann  IS,  iv,  p  16;  Ann 
19,  iv,  pp  128-129;  Ann  20,  iv,  pp  48,  110-111;  Ann  21,  iv, 
p  93;  WS  15,  p  12;   WS  27,  pp  17,  23,  24;  WS  35,  pp  81-83 
paint,  mineral,  production  of,  statistics  of MR  1892,  pp  816,  818;  MR  1893,  p 
760;  Ann  16,  iv,  pp  695,  696,  698;  Ann  17,  in  cont,  pp  1013, 
1014;  Ann  18,  v  cont,  pp  1338, 1339;  Ann  19,  vi  cont,  pp  637- 
638;  Ann  20,  vi  cont,  pp  723,  724;  Ann  21,  vi  cont,  pp  573,  574 
Patapsco  River,  flow  of,  measurements  of Ann  18,  iv,  pp  16-17;  Ann 
19,  iv,  pp  129-130;  Ann  20,  iv,  pp  48,  115;  Ann  21,  iv,  p  94; 
WS  11,  p  8;  WS  15,  p  13;  WS  27,  pp  18,  23,  24;  WS  35,  p  83 
Patuxent  River,  fl  owT  of,  measurements  of Ann  18, 
iv,  p   18;   Ann   19,  iv,  pp   131-132;    Ann   20,  iv,  p 
116;  WS  11,  p  8;  WS  15,  p  14;    WS  27,  pp  18,  23,24 
Piedmont  Plateau,  Middle  Atlantic,  general  relation  of  granitic  rocks  in.  .Ann  15, 
pp  660-666 
pre-Cambrian  rocks  of Ann  16,  i,  p  838 
Piedmont  quadrangle,  geology  of GF  28 
Potomac  or  younger  Mesozoic  flora Mon  xv 
Potomac  River,  flow  of,  measurements  of Ann  18, 
iv,  pp  22-24,  29-33;  Ann  19,  iv,  pp  146-147,  152-153; 
Ann  20,  iv,  pp  49,  130-131;  Ann  21,  iv,  pp  99-100;  Bull 
131,  p  88;  Bull  140,  pp  45-48,54-61;  WS  11,  pp  8,  10; 
WS  15,  pp  15,  21;  WS  27,  pp  21, 24,  25;  WS  35,  pp  91-93 
