638  INDEX    TO    PUBLICATIONS    OF    U.    S.    GEOL.    SURVEY,      [bull.  177. 
Pteropoda;  Matthevia  from  upper  Cambrian  of  New  York,  description  of Bull  30, 
pp  223-225 
of  Cambrian  of  Nevada,  Eureka  district Mon  vm,  pp  23-24 
of  Cambrian  of  North  America Ann  10, 
i,  pp  590,  620-624;  Bull  30,  pp  54,  131-146,  223-225 
of  Carboniferous  of  Nevada,  Eureka  district Mon  vm,  p  264 
of  Devonian  of  Nevada,  Eureka  district Mon  vm,  pp  196-200 
of  New  York Bull  16,  pp  22,  56-57 
Ontario  County '. Bull  16,  pp  22,  56-57 
of  Nevada,  Eureka  district Mon  vm,  pp  23-24,  85-86,  196-200,  264 
-     of  Olenellus  zone Ann  10,  i,  pp  620-625 
of  Paleozoic  strata  of  Nevada,  Eureka  district Mon  xx,  pp  320,  323,  330,  333 
of  Silurian,  lower,  of  Nevada,  Eureka  district Mon  vm,  pp  85-86 
Ptilolite,  chemical  constitution  of Bull  125,  pp  98,  106 
Public  domain,  history  of Bull  171,  pp  30-38 
Public-land  surveys,  system  of Mon  xxu,  pp  101-105 
Public  lands,  area  and  rate  of  disposal  of Ann  16,  n,  pp  476-479 
areas  vacant,  reserved,  and  disposed  of  in  the  West. .  .Ann  16,  n,  pp  479,  487-488 
in  the  Western  States,  water  supply  for Ann  16,  n,  pp  496-533 
location  and  extent  of Ann  16,  n,  pp  463-468 
vacant,  in  Western  States,  classification,  rate  of  disposal,  etc.,  of Ann  16, 
ii,  pp  467,  492-496 
water  supply,  etc. ,  of Ann  16,  n,  pp  457-533 
Pueblo  quadrangle,  Colorado,  geology  of GF  36 
Puerco  beds  of  Colorado  and  New  Mexico,  literature  and  correlation  of. .  .Ann  18,  n, 
p  347;  Bull  82,  p  229;  Bull  83,  pp  119-129,  137-138,  145-146 
Puerco  group  of  Colorado  and  New  Mexico,  fossils  of Bull  34,  pp  11-12 
Puerco  River,  New  Mexico,  irrigation  possibilities  along Ann  12,  n,  pp  275-277 
Puget  formation  or  group  of  Washington  and  British  Columbia,  character  and 
age  of Ann  18,  in,  pp  400-404 
correlation,  etc,  of Ann  18,  n,  p  347;  Bull  82,  pp  196-197;  Bull  83, 
pp  95,  107-110;  Bull  84,  pp  229-230,  333;  GF  54,  pp  2-3 
literature  pertaining  to,  digest  of Bull  83,  pp  107-110 
molluscan  fauna  of Bull  51,  pp  49-63 
plants  from Mon  xxxv 
Puget  Sound,  coal  fields  of Ann  18,  in,  pp  393-436 
Puget  Sound  region,  forests  of,  remarks  on Ann  18,  n,  pp  362-363 
molluscan  fauna  from Bull  51,  pp  49-63 
Pugh  formation  of  West  Virginia GF  34,  p  2 
Pulaski  formation  of  Oregon,  Coos  Bay  region Ann  19,  in,  p  320 
Pulaski  shale  in  Virginia  and  West  Virginia GF  26,  p  3 
Pulaskite  from  Arkansas,  Little  Rock,  description  of,  as  one  of  the  educational 
series  (eleolite-hornblende-syenite) Bull  150,  pp  194-196 
Pulliam  formation  of  Texas,  Uvalde  quadrangle GF  64,  p  2 
of  Texas,  Uvalde  quadrangle,  wells  from GF  64,  p  6 
Pulmonifera  from  Nevada,  Eureka  district Mon  vm,  pp  261-263 
from  Paleozoic  strata  of  Nevada,  Eureka  district Mon  xx,  p  333 
Pulp,  analysis  of,  from  Maryland,  Luke  (effluent  from) Ann  19,  iv,  p  143 
Pumice,  analysis  of,  from  California,  Mono  Lake Bull  148,  p  229: 
Bull  150,  p  149;  Bull  168,  p  219 
analysis  of,  from  Nebraska Ann  19,  vi  cont,  p  532 
from  Utah Ann  19,  vi  cont,  p  532 
in  Hawaii,  occurrence  of Ann  19,  vi  cont,  p  686 
re-fused  by  basalt Mon  xx,  pp  381-385 
from  California,  Mono  Lake,  description  of,  as  one  of  the  educational  series 
(rhyolitic) Bull  150,  pp  148-149 
of  Nevada,  Eureka  district  (rhyolitic ) Mon  xx,  pp  380-385 
