266  BIBLIOGKAPHY    OF    NORTH    AMERICAN    GEOLOGY 
Penfield  (S.  L.)  and  Jamieson  (G.  S.). 
1.  On  tychite,  a  new  mineral  from  Borax  Lake,  California,  and  on  its  artificial  pro- 
duction and  its  relations  to  northupite. 
Am.  Jour.  Sci.,  4th  ser..  vol.  20,  pp.  217-224,  1905.     Zeitschr.  I.  Krystall.  u.  Min..  Bd.  41.  pp. 
235-242,  1905  [German  translation] . 
Describes  the  occurrence,  character,  and  composition  of  tychite,  a  new  mineral  from  California 
and  its  relation  to  northupite. 
Pbnfield  (Samuel  L. )  and  Pirsson  (L.  V.). 
1.   Contributions   to   mineralogy   and   petrography,    from    the    laboratories   of    the 
Sheffield  Scientific  School  of  Yale  University. 
Yale  Bicentennial  publications.  Charles  Scribner's  Sons,  New  York.  August,  1901.  482  pp. 
Abstract:  Am.  Cool.,  vol.  28,  pp.  :>22-o2S,  1901:  Am.  .Tour.  Sri.,   lib  ser.,  vol.  12.  p.  398.  1901. 
Penfield  (Samuel  L.)  and  Pratt  (J.  H.). 
1.  On  th  j  occurrence  of  thaumasite  at  West  Paterson,  New  Jersey. 
Yale  Bicentennial  publications.  Cont.  to  Mineral,  and  Petrog.,  pp.246-251,  1901,  (From  Am., 
.lour.  Sci..  vol.  1.  pp.  •_"29  2:;:',.  L896. 
Penfield  (Samuel  L.  )  and  Warren  (C.  EL). 
I.   Smiie  new  minerals  from  the  zinc  mines  at    Franklin,  X.  .1..  and  note  concerning 
the  chemical  composition  of  ganomalite. 
Yale  Bicentennial  publications.  Cont.  to  Mineral,  and  Petrog.,  pp.  325-342,  1901.  |  From  Am. 
Jour.  Sci..  vol.  v.  ]<]*.  339-353,  L899.  I 
Penfield  (S.  L.),  Killebrand  (W.  F.)  ami. 
I .   Some  additions  to  the  alunite  jarosite  group  of  minerals. 
See  Hillebrand  (\V.  F.  |  and  Penfield  (S.  L.),  1. 
Penfield  ( S.  L.),  Wells  (H.  L.)  and. 
1.  On  a  new  occurrence  of  sperrylite. 
See  Wells  (H.  L.)  and  Penfield  (S.  L.),  1. 
Penhallow  (D.  P.). 
1.  Notes  on  the  North  American  species  of  Dadoxylon,  with  special  reference  to  type 
material  in  the  collections  of  the  Peter  Redpath  Museum,  McGill  College. 
Can.  Roy.  Soc,  Proc.  &  Trans.,  2d  ser.,  vol.  6,  sect.  i.  pp.  51-97,  18  figs.,  1900. 
2.  A  decade  of  North  American  Paleobotany,  1890-1900. 
Science,  new  ser..  vol.  13,  pp.  161-176,  1901. 
Presidential  address  before  the  Society  of  Plant  Morphology  and  Physiology. 
.">.  Osmundites  skidegatensis  n.  sp. 
Can.  Roy.  Soc.,  Proc.  &  Trans..  2d  ser.,  vol.  8,  sect.  i.  pp  3-30,  6  pis.,  3  figs.,  1902. 
Describes  megascopic  characters  and  microscopic  structure  of  this  fossil  pjant. 
4.  Notes  on  Cretaceous  and  Tertiary  plants  of  Canada. 
Can.  Roy.  Soc,  Proc.  &  Trans.,  2d  ser..  vol.  8,  sect.  I.  pp.  31-92,  10  pis..  8  figs.,  1902. 
5.  Notes  on  Tertiary  plants. 
('an.  Roy.  Soc,  Proc.  c*c  Trans.,  2d  ser.,  vol.  9,  sect.  1,  pp.  33-71,  29  figs.,  1903. 
(iives  descriptions  of  plants,  especially  of  internal  structure  as  revealed  by  microscopic 
sections,  of  early  Tertiary  age,  based  upon  material  obtained  by  the  British  North  American 
Boundary  Commission. 
6.  Notes  on  Tertiary  plants  from  Canada  and  the  United  States. 
Can.  Roy.  Soc,  Proc.  &  Trans.,  2d  ser.,  vol.  10,  sect.  1.  pp.  57-76,  1904. 
Describes  two  new  species  and  gives  notes  upon  the  occurrence  of  a  number  of  others  in 
Tertiary  and  Pleistocene  deposits. 
7.  A  blazing  beach. 
Science,  new  ser.,  vol.  22,  pp.  7'.U-79t;,  1905. 
Describes  burning  of  gas  upon  the  beach  at  Kittery  Point  and  explains  its  cause. 
Penhallow  (D.  P.)  and  Ami  (H.  M.). 
1.  Determinations  of  fossil  plants  from  various  localities  in  Briti  h  Columbia  and  the 
Northwest  territories,  with  notes  on  the  geological  horizons  indicated. 
Can.  Geol.  Surv..  Summ.  Rept.  for!90|,  pp.  389-392,  190".. 
