﻿408 
  PROCEEDINGS 
  OF 
  THE 
  CALIFORNIA 
  

  

  Overland 
  Monthly 
  for 
  November 
  ; 
  Quarterly 
  Journal 
  of 
  Micro- 
  

   scopical 
  Science 
  for 
  October, 
  1874 
  ; 
  Magazine 
  of 
  Natural 
  History, 
  

   Oct., 
  1874 
  ; 
  Proceedings 
  of 
  Society 
  of 
  Entomology 
  of 
  Belgium 
  ; 
  

   Nature, 
  Oct. 
  1st. 
  

  

  Two 
  cones 
  of 
  the 
  species 
  of 
  pine 
  called 
  Sahiniana, 
  otherwise 
  

   known 
  as 
  " 
  wet 
  pine," 
  were 
  presented 
  by 
  J. 
  Begg, 
  of 
  Gilroy, 
  

   through 
  J. 
  M. 
  Willey. 
  These 
  specimens 
  were 
  found 
  in 
  the 
  mount- 
  

   ains 
  back 
  of 
  Gilroy, 
  and 
  are 
  peculiar 
  for 
  their 
  symmetry. 
  

  

  Dr. 
  Behr 
  made 
  some 
  remarks 
  on 
  the 
  Eucalyptus 
  globulus. 
  He 
  

   had 
  been 
  informed 
  by 
  an 
  Australian 
  correspondent 
  that 
  the 
  wood 
  

   made 
  excellent 
  shingles, 
  by 
  reason 
  of 
  its 
  non-inflammable 
  charac- 
  

   teristics. 
  

  

  A 
  Recent 
  Volcano 
  in 
  Plumas 
  County. 
  

  

  BY 
  H. 
  W. 
  IIARKNESS, 
  M. 
  D. 
  

  

  From.timeto 
  time, 
  during 
  the 
  period 
  between 
  the 
  years 
  1850 
  and 
  1854, 
  

   vague 
  rumors 
  had 
  been 
  circulated 
  that 
  evidence 
  of 
  active 
  volcanic 
  action 
  ex- 
  

   isted 
  in 
  the 
  northern 
  portion 
  of 
  Plumas 
  County, 
  and 
  that 
  strange 
  lights 
  had 
  

   apparently 
  been 
  seen 
  by 
  different 
  observers, 
  which 
  were 
  referred 
  to 
  by 
  them 
  as 
  

   the 
  result 
  of 
  an 
  eruption 
  somewhere 
  to 
  the 
  eastward 
  of 
  Lassen's 
  Butte. 
  As 
  

   the 
  Indians 
  in 
  the 
  immediate 
  vicinity 
  were 
  exceedingly 
  hostile 
  no 
  effort 
  appears 
  

   to 
  have 
  been 
  made 
  to 
  verify 
  the 
  correctness 
  of 
  these 
  reports, 
  and 
  the 
  subject 
  

   seems 
  to 
  have 
  dropped 
  from 
  the 
  minds 
  of 
  men. 
  

  

  While 
  traveling 
  in 
  Plumas 
  County, 
  during 
  the 
  past 
  summer, 
  I 
  heard 
  reports 
  

   of 
  the 
  existence 
  of 
  a 
  lava 
  bed 
  in 
  the 
  vicinity 
  of 
  Lassen, 
  which 
  bore 
  traces 
  of 
  a 
  

   recent 
  upheaval, 
  the 
  central 
  point 
  of 
  this 
  disturbance 
  being 
  commonly 
  referred 
  

   , 
  to 
  as 
  the 
  Cinder 
  Cone. 
  While 
  camping 
  in 
  the 
  neighborhood 
  I 
  had 
  ample 
  

   opportunity 
  to 
  make 
  a 
  pretty 
  thorough 
  examination 
  of 
  the 
  locality. 
  

  

  This 
  cone 
  is 
  marked 
  upon 
  the 
  map 
  as 
  being 
  within 
  the 
  limits 
  of 
  Lassen 
  

   County. 
  This, 
  however, 
  is 
  a 
  mistake, 
  its 
  true 
  location 
  being 
  at 
  a 
  point 
  which 
  

   would 
  place 
  the 
  whole, 
  or 
  at 
  least 
  the 
  larger 
  portion 
  of 
  the 
  cone, 
  with 
  its 
  out- 
  

   lying 
  lava 
  bed 
  within 
  the 
  limits 
  of 
  Plumas. 
  

  

  Two 
  lakes 
  are 
  laid 
  down 
  upon 
  the 
  State 
  Geological 
  Map 
  as 
  lakes 
  Anna 
  and 
  

   Louisa 
  ; 
  these 
  lakes 
  lie 
  to 
  the 
  eastward 
  and 
  about 
  twelve 
  miles 
  distant 
  from 
  

   Lassen's 
  Butte, 
  and 
  are 
  known 
  to 
  the 
  residents 
  in 
  that 
  portion 
  of 
  the 
  State 
  as 
  

   Snag 
  Lake 
  (Anna) 
  and 
  Juniper 
  Lake 
  (Louisa). 
  The 
  Cinder 
  Cone 
  and 
  lava 
  bed 
  

   which 
  I 
  refer 
  to 
  lie 
  directly 
  across 
  the 
  northern 
  end 
  of 
  Snag 
  Lake. 
  

  

  When 
  viewed 
  from 
  the 
  southern 
  point 
  of 
  the 
  lake 
  — 
  \% 
  miles 
  distant 
  — 
  the 
  

   lava 
  bank 
  rises 
  directly 
  from 
  the 
  water 
  to 
  the 
  height 
  of 
  eighty 
  or 
  ninety 
  feet, 
  and 
  

   extends 
  across 
  the 
  whole 
  breadth 
  for 
  a 
  mile 
  or 
  more, 
  with 
  as 
  regular 
  a 
  gradient 
  

   and 
  as 
  sharp 
  a 
  definition 
  as 
  a 
  railway 
  embankment. 
  The 
  surface 
  beyond 
  is 
  

  

  