690  INDEX    TO    PUBLICATIONS    OF    U.   S.   GEOL.   SURVEY,     [bull.  177. 
Section,  geologic,  in  Iowa;  Dubuque  County,  showing  relation  of  loess  to  basal 
pebble  bed Ann  11,  i,  figs  45  and  46  (p  444),  fig  48  (p  445) 
in  Iowa;  Dubuque  County,  showing  relation  of  tills  toward  easternmost 
margin Ann  11,  i,  fig  82  (p  500) 
Dubuque  County,  showing  relation  of  tills  near  easternmost  margin.  .Ann  11, 
i,  fig  80  (p  499) 
showing  relations  of  upper  and  lower  drift  sheets.  .Ann  11,  i,  fig  84  (p  501 ) 
resistance  of  residuary  clays  to  glacial  action Ann  11, 
i,  fig  113  (p  555) 
sand  pocket  in  lower  drift  sheet Ann  11,  i,  fig  86  (p  502) 
Dyersville,  showing  deformation  of  earlier  glacial  deposits  by  later 
ice  work Ann  11,  i,  fig  92  (p  506) 
showing  pebbly  residuary  accumulation Ann  11,  i,  fig  120  (p  560) 
Elkader,  showing  typical  exposure  of  residuary  clays  of  the  Galena 
limestone Ann  11,  i,  fig  108  (p  552) 
Farley,  Dubuque  to Ann  11,  i,  fig  63  (p  476) 
showing  apparent  transition  between  drift  and  residuary  clays Ann 
11,  i,  fig  112  (p  554) 
Farley  drift  basin Ann  11,  i,  fig  50  (p  447) 
Fayette,  showing  intercalation  of  forest  bed  below  summit  of  lower 
till  near Ann  11,  i,  fig  74  (p  488) 
showing  relations  of  Devonian  and  Silurian  formations Ann  11, 
i,  fig  14  (p  316) 
Fayette  County Ann  11,  i,  pp  517-519 
showing  apparent  intergradation  of  drift  sheets Ann  11, 
i,  fig  88  (p  504) 
hydroscopic  banding  and  contortion  of  loess Ann  11, 
i,  fig  39  (p  439) 
normal  position  of  forest  bed Ann  11,  i,  fig  75  (p  488) 
Floyd  County Ann  11,  i,  fig  61  (p  474),  fig  62  (p  475) ,  p  517 
Iowa  City,  vicinity  of Ann  11,  i,  p  490 
showing  partial  incorporation  of  residuary  clays  in  glacial  drift Ann 
11,  i,  fig  118  (p  559) 
relation  between  residuary  clays  and  glacial  drift Ann  11, 
i,  fig  119  (p  559) 
Iowa  County Ann  11,  i,  pp  533-534 
showing  normal  relations  between  upper  and  lower  tills Ann  11, 
i,  fig  87  (p  503) 
Jackson  County Ann  11,  i,  pp  532-533 
showing  unconformity  between  loess  and  residuary  clays Ann  11, 
i,  fig  111  (p  554) 
Jasper  County,  showing  relations  of  lower  till  toward  its  southern 
margin Ann  11,  i,  fig  96  (p  508) 
Johnson  County Ann  11,  i,  pp  490,  534 
Jones  County Ann  11,  i,  pp  529-531 
showing  glacial  deposit  of  local  materials Ann  11,  i,  fig  101  (p  512) 
intercalation  of  forest  bed  within  lower  till.  .Ann  11,  i,  fig  79  (p  494) 
transition  of  loess  to  sand Ann  11,  i,  fig  47  (p  445) 
Keg  Creek,  between  Summit  Creek  and Bull  158,  fig  20  (p  94) 
vicinity  of Bull  158,  p  90 
Keokuk,  vicinity  of Mon  xxxviii,  p  94 
Lattners,  vicinity  of Ann  11,  i,  fig  64  (p  477) 
Linn  County Ann  11,  i,  fig  72  (p  485) ,  p  532 
showing  discordant  deposition  of  loess  and  drift Ann  11, 
i,  fig  52  (p  455) 
