﻿576 
  Scientific 
  Intelligence. 
  

  

  No. 
  186. 
  The 
  Diffusion 
  of 
  Gases 
  through 
  Liquids 
  and 
  allied 
  

   experiments 
  ; 
  by 
  Carl 
  Barus. 
  Pp. 
  iv, 
  88 
  ; 
  38 
  tigs. 
  

  

  No. 
  190. 
  The 
  k 
  Absorption 
  Spectra* 
  of 
  Solutions 
  affected 
  by 
  

   Temperature 
  and 
  by 
  Dilution 
  : 
  A 
  quantitative 
  study 
  of 
  Absorp- 
  

   tion 
  Spectra 
  by 
  means 
  of 
  the 
  Radiomicrometer 
  ; 
  by 
  Harry 
  C. 
  

   Jones 
  and 
  J. 
  Sam 
  Guy. 
  Pp. 
  vii, 
  93 
  ; 
  22 
  pis., 
  43 
  figs. 
  

  

  Also 
  (Oct. 
  8) 
  : 
  Classified 
  Descriptive 
  List 
  of 
  Publications 
  with 
  

   prices 
  and 
  authors 
  index. 
  

  

  2. 
  The 
  Mining 
  World 
  Index 
  of 
  Current 
  Literature. 
  Vol. 
  Ill, 
  

   first 
  half 
  year, 
  1913. 
  By 
  George 
  E. 
  Lisley. 
  Pp. 
  xxvi, 
  158. 
  

   Chicago, 
  1913 
  (Mining 
  World 
  Company) 
  — 
  The 
  second 
  volume 
  of 
  

   this 
  index 
  was 
  noticed 
  in 
  the 
  July 
  number 
  (p. 
  90). 
  The 
  volume 
  

   now 
  issued 
  covers 
  Jan. 
  -June, 
  1913, 
  and 
  is 
  planned 
  to 
  embrace 
  the 
  

   world's 
  literature 
  in 
  mining, 
  metallurgy, 
  and 
  kindred 
  industries 
  

   for 
  this 
  period. 
  References 
  are 
  classified 
  according 
  to 
  subject, 
  

   and 
  an 
  authors 
  index 
  closes 
  the 
  volume. 
  The 
  value 
  of 
  this 
  index 
  

   to 
  all 
  concerned 
  with 
  the 
  subjects 
  covered 
  is 
  at 
  once 
  obvious. 
  

  

  Obituary. 
  

  

  Dr. 
  Charles 
  Greene 
  Rockwood, 
  from 
  1877 
  to 
  1905 
  professor 
  

   of 
  mathematics 
  at 
  Princeton 
  University, 
  died 
  on 
  July 
  2 
  in 
  his 
  

   seventy-first 
  year. 
  

  

  Professor 
  John 
  Robie 
  Eastman, 
  the 
  astronomer, 
  died 
  on 
  

   September 
  26, 
  at 
  the 
  age 
  of 
  seventy 
  seven 
  years. 
  He 
  was 
  an 
  

   assistant 
  at 
  the 
  IT. 
  S. 
  Naval 
  Observatory 
  from 
  1861 
  to 
  1865, 
  and 
  

   professor 
  of 
  mathematics, 
  U. 
  S. 
  N., 
  from 
  1869 
  to 
  1898. 
  

  

  Dr. 
  Alexander 
  MacFarlane 
  7 
  the 
  mathematician, 
  at 
  one 
  time 
  

   professor 
  of 
  physics 
  in 
  the 
  University 
  of 
  Texas 
  and 
  later 
  residing 
  

   in 
  Canada, 
  died 
  in 
  September 
  last 
  in 
  his 
  sixty-third 
  year.. 
  

  

  Professor 
  John 
  Milne, 
  the 
  eminent 
  English 
  seismologist, 
  

   died 
  on 
  July 
  31 
  at 
  the 
  age 
  of 
  sixty-three 
  years. 
  

  

  Sir 
  Walter 
  Noel 
  Hartley, 
  formerly 
  professor 
  of 
  chemistry 
  

   at 
  the 
  Royal 
  College 
  of 
  Science 
  in 
  Dublin, 
  died 
  on 
  Sept. 
  11 
  in 
  

   the 
  sixty-eighth 
  year 
  of 
  his 
  age. 
  

  

  Professor 
  Hugh 
  Marshall, 
  the 
  Scotch 
  chemist 
  and 
  crystallo- 
  

   grapher, 
  died 
  on 
  September 
  5 
  at 
  the 
  age 
  of 
  forty-five 
  years. 
  

  

  Dr. 
  Philip 
  Lutley 
  Sclater, 
  the 
  veteran 
  zoologist, 
  died 
  on 
  

   June 
  27 
  at 
  the 
  age 
  of 
  eighty-four 
  years. 
  

  

  Dr. 
  Hermann 
  Credner, 
  emeritus 
  professor 
  of 
  geology 
  at 
  the 
  

   University 
  of 
  Leipzig, 
  and 
  former 
  director 
  of 
  the 
  Royal 
  Geolog- 
  

   ical 
  Survey 
  of 
  Saxony, 
  died 
  on 
  July 
  22d, 
  at 
  the 
  age 
  of 
  seventy- 
  

   two. 
  His 
  " 
  Elemente 
  dei' 
  Geologie 
  " 
  has 
  gone 
  through 
  eleven 
  

   editions 
  (1872-1912). 
  When 
  a 
  young 
  man, 
  Credner 
  lived 
  for 
  some 
  

   years 
  in 
  America, 
  and 
  published 
  papers 
  on 
  the 
  geology 
  of 
  New 
  

   York 
  and 
  New 
  Brunswick 
  (1865), 
  Virginia 
  (1866), 
  Georgia 
  (1867), 
  

   Lake 
  Superior 
  and 
  Michigan 
  (1869), 
  and 
  the 
  Cretaceous 
  of 
  New 
  

   Jersey 
  (1870). 
  

  

  Dr. 
  Hugo 
  Laspeyres, 
  professor 
  of 
  mineralogy 
  at 
  the 
  University 
  

   of 
  Bonn, 
  died 
  on 
  July 
  22. 
  

  

  Dr. 
  Heinrich 
  Weber, 
  professor 
  of 
  mathematics 
  in 
  the 
  Uni- 
  

   v< 
  rsity 
  of 
  Strassburg, 
  died 
  on 
  May 
  17 
  at 
  the 
  age 
  of 
  seventj'-one 
  

   years. 
  

  

  