FOR    THE    YEARS    1901-1905,    INCLUSIVE.  188 
Jag-gar  (Thomas  Augustus) — Continued. 
2.  Field  notes  of  a  geologist  in  Martinique  and  St.  Vincent. 
Pop.  Sci.  Mo.,  vol.  61,  pp.  352-368,  19  figs.,  1902. 
Describes  recent  volcanic  phenomena. 
3.  The  next  eruption  of  Pelee. 
Science,  new  ser.,  vol.  16,  pp.  871-872,  1902. 
4.  Professor  Heilprin  on  Mont  Pelee. 
Science,  new  ser.,  vol.  17,  pp.  423-425,  1903. 
Reviews  the  "Mont  Pelee  and  the  tragedy  of  Martinique"  of  Angelo  Heilprin,  and  discusses 
phenomena  connected  with  the  eruptions. 
5.  Economic  resources  of  the  northern  Black  Hills.     Part  I.     General  geology. 
U.  S.  Geol.  Surv.,  Professional  Paper  no.  26,  pp.  13-41,  1  pi.,  5  figs.,  1904. 
Describes  topography,  stratigraphy,  lithology,  geologic  structure,  and  characteristic  sections. 
6.  The  eruption  of  Mount  Pelee,  1851. 
Am.  Nat.,  vol.  38,  pp.  51-73,  1904. 
Translated  from  the  French  of  LePrieur,  Peyraud,  and  Rufz. 
7.  The  initial  stages  of  the  spine  on  Pelee. 
Am.  Jonr.  Sci.,  4th  ser.,  vol.  17,  pp.  34-40,  3  figs.,  1904. 
Describes  occurrence  and  appearance  of  spines  in  the  crater  of  Mont  Pelee  and  gives  an 
explanation  of  their  origin. 
8.  The  eruption  of  Pelee,  July  9,  1902. 
Pop.  Sci.  Monthly,  vol.  64,  pp.  219-231,  3  tigs.,  1904. 
Gives  details  of  observations  on  the  eruption  of  July  9,  1902,  and  discusses  the  causes  of  the 
phenomena. 
Jagg-ar  (T.  A.,  jr.)  and  Palache  (Charles). 
1.  Bradshaw  Mountains  folio,  Arizona. 
U.  S.  Geol.  Surv.,  Geol.  Atlas  of  U.  3..  folio  no.  126,  1905. 
Describes  the  occurrence,  character,  and  relations  of  Algonkian  sedimentary  and  metamor- 
phic  strata,  of  igneous  rocks,  and  of  Quaternary  deposits,  the  geologic  history,  and  the 
economic  resources,  including  gold,  silver,  and  copper  deposits. 
James  (F.  Wilton). 
1.  Notes  on  the  Minnewaska  region,  Ulster  Co.,  New  York. 
Abstract:  Am.  Geol.,  vol.  35,  pp.  257-258,  1905;  Science,  new  ser.,  vol.  21,  pp.  510-511,  1905. 
Gives  notes  upon  physiographic  features  of  the  region. 
Jamieson  (George  S. ). 
1.  On  the  natural  iron-nickel  alloy,  awaruite. 
Am.  Jour.  Sci.,  4th  ser.,  vol.  19,  pp.  413-415,  1905. 
Describes  character  and  composition  of  specimens  of  natural  iron-nickel  alloy  obtained  from 
Josephine  County,  Oregon,  and  from  Del  Norte  County,  California. 
Jamieson  (G.  S. ),  Penfield  (8.  L. )  and. 
1.  On  tychite,  a  new  mineral  from  Borax  Lake,  California,  and  on  its  artificial  pro- 
duction and  its  relation  to  northupite. 
See  Penfield  (S.  L.)  and  Jamieson  (G.  S.),  1. 
Jefferson  (Mark  S.  W. ). 
1.  Limiting  widths  of  meander  belts. 
Nat.  Geog.  Mag.,  vol.  13,  pp.  373-384,  6  figs.,  1902. 
Describes  methods  and  results  of  meander  studies. 
2.  Mount  Pelee. 
Science,  new  ser.,  vol.  17,  p.  909,  1903. 
Discusses  the  proper  writing  of  the  name  of  this  volcano. 
3.  Some  shore  features  of  Lake  Huron. 
Abstract:  Science,  new  ser.,  vol.  17,  p.  221,  1903;  Sci.  Am.  Suppl.,  vol.  55,  p.  22647,  1903. 
Jeffrey  (Edward  C). 
1.  A  fossil  Sequoia  from  the  Sierra  Nevada. 
Bot.  Gaz.,  vol.  28,  pp.  321-332,  1901. 
