﻿Miscellaneous 
  Intelligence. 
  399 
  

  

  2. 
  Transactions 
  of 
  the 
  American 
  Microscopical 
  Society^ 
  edited 
  

   by 
  the 
  Secretary. 
  Twenty-first 
  annual 
  meeting 
  held 
  at 
  Syracuse, 
  

   N. 
  Y., 
  August 
  30th, 
  31st, 
  and 
  September 
  1st, 
  1899, 
  Vol. 
  xx, 
  

   pp. 
  369 
  with 
  32 
  plates. 
  — 
  The 
  latest 
  volume 
  ot 
  the 
  Transactions 
  

   of 
  the 
  American 
  Microscopical 
  Society, 
  just 
  published, 
  contains 
  

   the 
  usual 
  number 
  of 
  valuable 
  papers. 
  Among 
  the 
  more 
  extended 
  

   of 
  these 
  may 
  be 
  mentioned 
  the 
  following 
  : 
  Contributions 
  to 
  the 
  

   histogenesis 
  of 
  the 
  Caryophyllales, 
  I, 
  by 
  F. 
  E. 
  Clements, 
  pp. 
  

   97-164, 
  with 
  plates 
  viii 
  to 
  xxv 
  ; 
  the 
  North 
  American 
  species 
  of 
  

   the 
  genus 
  Atax 
  (Fabr.) 
  Bruz, 
  by 
  R. 
  H. 
  Wolcott, 
  pp. 
  193-260, 
  

   with 
  plates 
  xxviii-xxxii 
  ; 
  Fresh 
  water 
  investigations 
  during 
  the 
  

   last 
  five 
  years, 
  by 
  Henry 
  B. 
  Ward, 
  pp. 
  261-336. 
  

  

  A 
  paper 
  by 
  A. 
  Mansfield 
  Holmes 
  (pp. 
  1'77-188) 
  gives 
  the 
  results 
  

   of 
  some 
  observations 
  as 
  to 
  the 
  effect 
  of 
  altitude 
  on 
  the 
  red 
  blood 
  

   cells. 
  It 
  is 
  shown 
  that 
  a 
  sudden 
  change 
  from 
  a 
  low 
  to 
  a 
  high 
  

   altitude 
  produces 
  a 
  rapid 
  increase 
  in 
  the 
  number 
  of 
  red 
  cells, 
  and 
  

   a 
  descent 
  to 
  a 
  lower 
  altitude, 
  a 
  rapid 
  decrease. 
  The 
  former 
  

   change, 
  however, 
  takes 
  place 
  immediately, 
  the 
  number 
  continuing 
  

   to 
  increase 
  during 
  a 
  residence 
  on 
  a 
  mountain; 
  but 
  the 
  diminution 
  

   on 
  descent, 
  though 
  rapid, 
  is 
  not 
  so 
  pronounced 
  as 
  the 
  rate 
  of 
  in- 
  

   crease. 
  The 
  effect 
  of 
  altitude 
  is 
  thus 
  explained 
  : 
  that 
  the 
  increas- 
  

   ing 
  need 
  of 
  oxygen 
  at 
  higher 
  points 
  calls 
  for 
  greater 
  activity 
  of 
  

   the 
  total 
  volume 
  of 
  red 
  cells 
  and 
  brings, 
  therefore, 
  into 
  activity 
  

   many 
  which 
  under 
  different 
  conditions 
  would 
  remain 
  more 
  or 
  less 
  

   quiescent 
  in 
  deeper 
  portions 
  of 
  the 
  body. 
  

  

  3. 
  A 
  Primer 
  of 
  Forestry. 
  Fart 
  I: 
  The 
  Forest. 
  By 
  Gifford 
  

   Pinchot; 
  pp. 
  88 
  with 
  47 
  plates. 
  Washington, 
  1899. 
  Bulletin 
  

   No. 
  4, 
  U. 
  S. 
  Department 
  of 
  Agriculture, 
  Division 
  of 
  P^orestry. 
  — 
  

   This 
  little 
  book, 
  with 
  its 
  numerous 
  illustrations, 
  presents 
  in 
  very 
  

   attractive 
  form 
  the 
  subject 
  of 
  forestry 
  newly 
  developed 
  in 
  this 
  

   country, 
  and 
  which, 
  under 
  the 
  guidance 
  of 
  Mr. 
  Pinchot 
  and 
  

   others, 
  it 
  is 
  hoped 
  will 
  yield 
  important 
  fruit. 
  The 
  author 
  

   shows 
  how 
  a 
  forest 
  is 
  to 
  be 
  regarded 
  as 
  an 
  organic 
  whole, 
  

   and 
  traces 
  its 
  progress 
  through 
  the 
  time 
  of 
  full 
  maturity 
  to 
  

   the 
  inevitable 
  end. 
  An 
  interesting 
  chapter 
  is 
  that 
  devoted 
  to 
  

   the 
  numerous 
  enemies 
  of 
  the 
  forest, 
  as 
  fire, 
  the 
  reckless 
  use 
  of 
  the 
  

   axe, 
  insects, 
  and 
  others. 
  

  

  4. 
  Statistical 
  Methods 
  icith 
  special 
  reference 
  to 
  Biological 
  

   Variation; 
  by 
  C. 
  B. 
  Davenport, 
  Harvard 
  University. 
  New 
  

   York, 
  1899 
  (John 
  Wiley 
  & 
  Sons). 
  — 
  This 
  little 
  volume 
  contains 
  in 
  

   very 
  concise 
  and 
  clear 
  form 
  a 
  series 
  of 
  mathematical 
  tables, 
  

   lormulas, 
  etc., 
  likely 
  to 
  prove 
  valuable 
  to 
  the 
  working 
  biologist 
  

   in 
  his 
  statistical 
  work 
  on 
  recently 
  developed 
  lines. 
  The 
  subjects 
  

   of 
  the 
  preliminary 
  chapters 
  are: 
  The 
  methods 
  of 
  measuring 
  

   organisms 
  ; 
  the 
  seriation 
  and 
  plotting 
  of 
  data 
  and 
  the 
  frequency 
  

   polygons; 
  the 
  classes 
  of 
  Irequency 
  polygons; 
  correlated 
  varia- 
  

   bility. 
  The 
  mathematical 
  tables 
  follow, 
  accompanied 
  by 
  concise 
  

   explanations 
  as 
  to 
  their 
  use. 
  

  

  Am. 
  Jour. 
  Sci. 
  — 
  Fourth 
  Series, 
  Vol. 
  VIII, 
  No. 
  47. 
  — 
  November, 
  1899. 
  

   27 
  

  

  