220  BIBLIOGRAPHY    OF    NORTH    AMERICAN    GEOLOGY 
Leverett  (Frank) — Continued. 
6.  Glacial  features  of  Lower  Michigan. 
Abstract:  Science,  new  ser.,  vol.  17,  p.  224,  1903. 
7.  The  loess  and  its  distribution. 
Am.  Geol.,  vol.  33,  pp.  56-57.  1904. 
8.  Review  of  the  Glacial  geology  of  the  southern  peninsula  of  Michigan. 
Mich.  Acad.  Sci.,  6th  Rept.,  pp.  103-110,  1904. 
Discusses  the  physical  features  of  the  southern  peninsula,  the  possible  extension  of  the 
Keewatin  ice  field  over  Michigan,  evidences  in  Michigan  of  successive  advances  of  the  Lab- 
rador ice  field,  the  location  of  the  ice  margin,  structure  of  the  drift  in  Michigan,  Glacial 
lakes,  and  origin  of  the  Great  Lakes,  and  gives  a  bibliography. 
9.  (Glacial  geology  of  the  Grand  Rapids  area  [Michigan]. 
Mich.  Geol.  Surv.,  vol.  9,  pt.  2,  pp.  56-59,  1904. 
10.  Glacial  gravels  [of  the  Kittanning  quadrangle,  Pennsylvania]. 
r.  S.  Geol.  Surv.,  Geol.  Atlas  of  U.  S.,  folio  no.  115,  1904. 
11.  Underground  waters  of  eastern  United  States:  Illinois. 
U.  S.  Geol.  Surv.,  Water-Supply  and  Irrigation  Paper  no.  114,  pp.  '248-257,  3  figs.,  1905. 
Gives  a  brief  account  of  the  geology,  and  describes   the  water-producing  qualities  of  the 
various  geologic  formations  of  the  State,  and  localities  favorable  for  artesian  wells. 
12.  Underground  waters  of  eastern  United  States:  Indiana. 
U.  S.  Geol.  Surv.,  Water-Supply  and  Irrigation  Paper  no.  114,  pp.  258-264,  2  pis.,  1905. 
Describes  briefly  the  geologic  column  of  Indiana,  the  principal  water-bearing  horizons,  and 
the  mineral  waters. 
13.  Underground  waters  of  eastern  United  States:  Ohio. 
U.  S.  Geol.  Surv.,  Water-Supply  and  Irrigation  Paper  no.  114,  pp.  265-270,  1905. 
Describes  the  underground  water  supplies  with  reference  to  the  geologic  horizons. 
14.  Drumlins  of  the  Grand  Traverse  region  [Michigan]. 
Abstract:  Science,  new  ser..  vol.  21,  p.  220,  1905. 
Levison  (W.  G.). 
1 .  Notes  on  fluorescent  gems. 
Am.  Geol.,  vol.  38.  pp.  57-58,  1904. 
Lewis  (J.  V.),  Pratt  (J.  H.)  and. 
1.  Corundum  and  the  peridotites  <>i'  western  North  Carolina. 
See  Pratt  (.1.  H.)  and  Lewis  (.1.  V.   .  1. 
L'Hame  (Wm.  E.). 
1.  Thunder  Mountain,  Idaho. 
Mines  and  Minerals,  vol.  21,  p.  558,  1901. 
Describes  briefly  occurrence  of  gold  in  the  region. 
2.  Thunder  Mountain  district  [Idaho].     A  description  of  the  peculiarities  of  geology 
and  situation  of  the  various  regions  comprised  in  the  district. 
Mines  and  Minerals,  vol.  24,  pp.  207-209,  1903. 
Describes  the  general  geology  and  the  occurrence  of  gold  ore  deposits. 
Liddell  (Charles  A.),  Parsons  (H.  F. )  and. 
1.  The  coal  and  mineral  resources  of  Routt  County  [Colorado]. 
See  Parsons  (H.  F.)  and  Liddell  (C.  A.),  1. 
Lindgren  (Waldemar). 
1.  Metasomatic  processes  in  fissure  veins. 
Am.  Inst.  Mg.  Engrs.,  Trans.,  vol.  30,  pp.  578-692,  30  figs.,  1901.  Abstract:  Am.  Jour,  Sci.,  4th 
ser.,  vol.  11,  pp.  243-244,  1901. 
Discusses  the  general  features  of  the  changes  in  rocks  contiguous  to  ore-hearing  lissures,  and 
the  minerals  developed  by  metasomatic  processes  in  fissure  veins.  Gives  an  account  of 
fissure  veins  in  various  mining  regions  classified  according  to  metasomatic  processes. 
2.  Trias  in  northeastern  Oregon. 
Abstract:  Science,  new  ser..  vol.  13,  pp.  270-271,  1901. 
Describes  briefly  character  and  distribution. 
