36  PUBLICATIONS    OF    U.    S.    GEOLOGICAL    SURVEY.         [bull.  177. 
XXXVI.  The  Crystal  Falls  iron-bearing  district  of  Michigan,  by  J.  Morgan 
Clements  and  Henry  Lloyd  Smyth;  with  a  chapter  on  the  Sturgeon  Eiver  tongue, 
by  William  Shirley  Bayley;  and  an  introduction  by  Charles  Richard  Van  Hise. 
1899.     xxx vi,  512  pp.,  53  pis.  and  maps.     Price,  $2.00. 
X  X  X  VII.  Fossil  flora  of  the  Lower  Coal  Measures  of  Missouri,  by  David  White, 
1899.  xi,  467  pp.,  73  pis.     Price,  $1.25. 
XXXVIli.  The  Illinois  glacial  lobe,  by  Frank  Leverett.  1899.  xxi,  817  pp., 
24  pis.  and  maps.     Price,  $1.60. 
XXXIX.  The  Eocene  and  Lower  Oligocene  coral  faunas  of  the  United  States, 
with  descriptions  of  a  few  doubtfully  Cretaceous  species,  by  T.  Wayland  Vaughan. 
1900.  26: J  j, p.,  24  pis.     Price,  $1.10. 
XL.  Adephagous  and  clavicorn  Coleoptera  from  the  Tertiary  deposits  at  Floris- 
sant, Colorado,  with  descriptions  of  a  few  other  forms,  and  a  systematic  list  of 
the  non-rhynchophorous  Tertiary  Coleoptera  of  North  America,  by  Samuel  Hub- 
bard Scudder.     1900.     148  pp.,  11  pis.     Price,  80  cents.      . 
