FOR    THE    YEARS    1901-1905,   INCLUSIVE.  227 
Lull  (Richard  Swan) — Continued. 
2.  Fossil  footprints  of  the  Juratrias  of  North  America. 
Boston  Soc.  Nat.  Hist.,  Mem.,  vol.  5,  pp.  461-557,  1  pi.,  34  figs.,  1904. 
Reviews  previous  work  upon  fossil  footprints,  describes  their  geologic  occurrence,  gives  a 
classification  and  systematic  descriptions  of  genera,  species,  and  higher  groups. 
3.  Note  on  the  probable  footprints  of  Stegomus  longipes. 
Am.  Jour.  Sci.,  4th  ser.,  vol.  17,  pp.  381-382,  1904. 
4.  Nature's  hieroglyphics. 
Pop.  Sci.  Mo.,  vol.  66,  pp.  139-149,  8  figs.,  1904. 
GFives  a  general  account  of  the  footprints  in  the  Triassic  rocks  of  the  Connecticut  Valley  and 
of  the  animals  by  which  they  were  made. 
5.  Megacerops  tyleri,  a  new  species  of  titanothere  from  the  Bad  Lands  of  South 
Dakota. 
Jour.  Geol.,  vol.  13,  pp.  443-456.  2  pis.,  2  figs.,  1905. 
6.  Restoration  of  the  Titanothere  Megacerops. 
Am.  Nat.,  vol.  39,  pp.  419-424,  3  figs.,  1905. 
7.  Restoration  of  the  horned  dinosaur  Diceratops. 
Am.  Jour.  Sci.,  4th  ser.,  vol.  20,  pp.  420-422,  1  pi.,  1905. 
8.  Footprint  interpretation. 
Abstract:  Science,  new  ser.,  vol.  21.  \>.  299,  1905. 
Lunt  (Horace  F. ). 
1.  The  copper  deposits  of  the  Kaibab  Plateau,  Arizona. 
Am.  Inst.  Mg.  Engrs..  Trans.,  vol.  34,  pp.  989-990,  1904. 
Describes  the  occurrence  and  character  of  copper  deposits  in  this  region. 
Luquer  (Lea  Mcllvaine). 
1.  On  the  determination  of  relative  refractive  indices  of  minerals  in  rock  sections  by 
the  Becke  method. 
School  of  Mines  Quart.,  vol.  33,  pp.  127-133,  1902. 
2.  Bedford  cyrtolite. 
Am.  Geol.,  vol.  33,  pp.  17-19,  1904. 
Describes  occurrence  of  this  mineral  at  Bedford,  New  York,  and  its  characters.    Appends  a 
list  of  additional  minerals  collected  from  this  locality. 
3.  Ramosite  not  a  mineral. 
Am.  Jour.  Sci.,  4th  ser.,  vol.  17,  pp.  93-94.  1904. 
Shows  from  analysis  and  structure  that  ramosite  is  a  basic  scoria  and  not  a  mineral. 
4.  Minerals  in  rock  sections.     The  practical  methods  of  identifying  minerals  in  rock 
sections  with  the  microscope.     (Revised  edition. ) 
New  York,  D.  Van  Nostrand  Company,  1905.    147  pp.,  85  figs. 
Luquer  (Lea  McL),  Moses  (Alfred  J.)  and. 
1.  Notes  on  recent  mineralogical  literature. 
See  Moses  (A.  J.)  and  Luquer  |L.  McL),  1. 
2.  Notes  on  recent  mineralogical  literature. 
See  Moses  (Alfred  J.)  and  Luquer  (L.  I.),  2. 
3.  Notes  on  recent  mineralogical  literature. 
See  Moses  (Alfred  J.)  and  Luquer  (Lea  McL),  3. 
Luther  (D.  Dana). 
1.  Stratigraphic  value  of  the  Portage  sandstones. 
N.  Y.  State  Mus.,  Bull.  no.  52,  pp.  616-631,  1  fig.,  1902. 
Describes  the  characters  of  these  beds  at  various  localities  and  discusses  the  relations  in 
different  sections.    Includes  a  note  by  J.  M.  Clarke  on  the  occurrence  and  relations  of  the 
faunas. 
2.  Stratigraphy  of  Portage  formation  between  the  Genesee  Valley  and  Lake  Erie.     - 
N.  Y.  State  Mus.,  Bull.  69,  pp.  1000-1029,  13  figs.,  1903. 
Describes  character,  occurrence,  and  geologic  relations  of  Devonian  strata  in  the  Genesee 
Valley  and  other  localities  in  western  New  York. 
