﻿936 
  Notices 
  respecting 
  New 
  Boohs. 
  

  

  a 
  complication 
  not 
  due 
  to 
  Nature 
  but 
  to 
  the 
  (mathematizing) 
  

   naturalist. 
  Now, 
  Nature 
  is 
  of 
  herself 
  wonderfully 
  complicated 
  ; 
  

   so 
  that 
  supplemental 
  complication 
  is 
  not 
  wanted." 
  

  

  The 
  book 
  may 
  be 
  very 
  strongly 
  recommended. 
  No 
  other 
  exposi- 
  

   tion 
  of 
  the 
  subject 
  approaches 
  it 
  in 
  clearness 
  and 
  thoroughness. 
  The 
  

   time 
  is 
  past 
  when 
  a 
  man 
  could 
  afford 
  to 
  be 
  ignorant 
  of 
  vectorial 
  

   methods. 
  No 
  one 
  can 
  be 
  abreast 
  of 
  recent 
  work 
  in 
  physics 
  who 
  has 
  

   no 
  acquaintance 
  with 
  them. 
  The 
  publishers 
  are 
  to 
  be 
  commended 
  

   on 
  the 
  excellence 
  of 
  their 
  contribution 
  to 
  the 
  attractiveness 
  of 
  

   this 
  volume. 
  

  

  Bulletin 
  of 
  the 
  Bureau 
  of 
  Standards. 
  Vol. 
  VIII. 
  Nos. 
  2, 
  3, 
  4 
  ; 
  

   Vol. 
  IX. 
  No. 
  1. 
  "Washington 
  : 
  Government 
  Printing 
  Office. 
  

  

  These 
  parts 
  contain 
  a 
  large 
  number 
  of 
  important 
  and 
  interesting 
  

   papers. 
  In 
  No. 
  2, 
  Mr. 
  Buckingham 
  discusses 
  Guillaume's 
  and 
  

   Mahlke's 
  method 
  of 
  correcting 
  for 
  the 
  emergent 
  stem 
  of 
  the 
  

   mercurial 
  thermometer. 
  Messrs. 
  Eosa, 
  N. 
  E. 
  Dorsey, 
  and 
  J. 
  M. 
  

   Miller 
  detail 
  a 
  determination 
  of 
  the 
  International 
  ampere 
  in 
  

   absolute 
  measure. 
  The 
  final 
  result 
  expressed 
  in 
  terms 
  of 
  the 
  

   electrochemical 
  equivalent 
  of 
  silver 
  is 
  1-11804 
  mgm. 
  per 
  coulomb, 
  

   instead 
  of 
  1 
  "11800 
  as 
  adopted 
  by 
  the 
  London 
  Conference. 
  

   Mr. 
  H. 
  H. 
  Brooks 
  writes 
  on 
  deflexion 
  potentiometers 
  and 
  the 
  

   design 
  of 
  moving-coil 
  galvanometers. 
  

  

  In 
  No. 
  3, 
  Mr. 
  P. 
  G. 
  Nutting 
  describes 
  further 
  experiments 
  on 
  

   the 
  luminous 
  properties 
  of 
  electrically 
  conducting 
  helium 
  gas 
  ; 
  

   and 
  Mr. 
  J. 
  G. 
  Priest 
  gives 
  the 
  results 
  of 
  a 
  redetermination 
  of 
  the 
  

   wave-lengths 
  of 
  ten 
  of 
  the 
  lines 
  of 
  the 
  neon 
  spectrum 
  obtained 
  by 
  

   aid 
  of 
  reflexion 
  fringes. 
  Mr. 
  Buckingham 
  discusses 
  the 
  deduction 
  

   of 
  Wien's 
  displacement 
  law. 
  

  

  In 
  No. 
  4, 
  Mr. 
  P. 
  G. 
  Agnew 
  describes 
  a 
  tubular 
  electrodynamo- 
  

   meter 
  for 
  heavy 
  currents, 
  and 
  Mr. 
  D. 
  B. 
  Harper 
  gives 
  a 
  very 
  full 
  

   treatment 
  of 
  the 
  question 
  of 
  the 
  lag 
  of 
  various 
  mercurial 
  and 
  

   electrical 
  thermometers. 
  

  

  Vol. 
  IX, 
  No. 
  1 
  begins 
  with 
  a 
  very 
  interesting 
  account 
  of 
  a 
  

   new 
  precision 
  colorimeter 
  designed 
  by 
  Mr. 
  P. 
  G. 
  Nutting. 
  This 
  

   depends 
  en 
  (so-called) 
  monochromatic 
  analysis, 
  the 
  match 
  being 
  

   obtained 
  by 
  adding 
  to 
  or 
  subtracting 
  from 
  white 
  light 
  a 
  certain 
  

   monochromatic 
  tint. 
  Mr. 
  W. 
  W. 
  Coblentz 
  continues 
  a 
  discussion 
  

   of 
  instruments 
  and 
  methods 
  used 
  in 
  radiometry 
  and, 
  in 
  a 
  second 
  

   article, 
  the 
  selective 
  radiation 
  from 
  various 
  substances. 
  

  

  Mr. 
  L. 
  W. 
  Austin 
  takes 
  up 
  the 
  question 
  of 
  antenna 
  resistance 
  

   and 
  that 
  of 
  energy 
  losses 
  in 
  some 
  condensers 
  used 
  in 
  high-frequency 
  

   circuits. 
  Amongst 
  chemical 
  articles 
  we 
  may 
  mention 
  one 
  by 
  

   Mr. 
  H. 
  C. 
  P. 
  Weber 
  on 
  the 
  atomic 
  w 
  r 
  eight 
  of 
  bromine. 
  The 
  final 
  

   value 
  given 
  is 
  79'306 
  6 
  ± 
  -0014. 
  

  

  