﻿296 
  Schuchert 
  — 
  Proper 
  Name 
  for 
  Fossil 
  Beatricea. 
  

  

  carbonated 
  waters 
  bubbling 
  up 
  through 
  the 
  beds 
  of 
  depo- 
  

   sition. 
  

  

  EEFERENCES 
  

  

  1843. 
  Plummer, 
  John 
  T.: 
  Suburban 
  geology, 
  or 
  rocks, 
  soil, 
  and 
  water, 
  

  

  about 
  Kichmond, 
  Wayne 
  County, 
  Indiana, 
  this 
  Journal, 
  44, 
  

  

  293-294. 
  

   1857. 
  Billings, 
  E. 
  : 
  Geological 
  Survey 
  of 
  Canada, 
  Rep't. 
  Progress 
  for 
  the 
  

  

  years 
  1853-1856, 
  343-345. 
  

   1865. 
  Hyatt, 
  A.: 
  Eemarks 
  on 
  the 
  Beatrices, 
  a 
  new 
  division 
  of 
  Mollusca, 
  

  

  this 
  Journal 
  (2), 
  39, 
  261-266. 
  

  

  1885. 
  Hyatt, 
  A.: 
  Structure 
  and 
  affinities 
  of 
  Beatricea, 
  Proc. 
  Amer. 
  

  

  Assoc. 
  Adv. 
  Sci. 
  for 
  1884, 
  492. 
  

  

  1886. 
  Nicholson, 
  H. 
  A.: 
  Monograph 
  of 
  the 
  British 
  stromatoporoids, 
  

  

  Palseontographieal 
  Soc, 
  9, 
  86. 
  

  

  1910. 
  Parks, 
  W. 
  A. 
  : 
  Ordovician 
  stromatoporoids, 
  Univ. 
  of 
  Toronto 
  Studies, 
  

   Geol. 
  Ser., 
  No. 
  7, 
  37-43. 
  

  

  1914. 
  Raymond, 
  P. 
  E. 
  : 
  A 
  Beatricea-like 
  organism 
  from 
  the 
  Middle 
  Ordo- 
  

   vician, 
  Geol. 
  Survey 
  Canada, 
  Mus. 
  Bull. 
  No. 
  5. 
  

  

  SCIENTIFIC 
  INTELLIGENCE. 
  

  

  I. 
  Chemistry 
  and 
  Physics. 
  

  

  1. 
  A 
  New 
  Physico-chemical 
  Method 
  for 
  the 
  Determination 
  of 
  

   Alkali 
  Carbonates 
  in 
  the 
  Presence 
  of 
  Free 
  Alkalies. 
  — 
  Dubrisay, 
  

   Tripier 
  and 
  Toquet 
  have 
  devised 
  an 
  analytical 
  method 
  which 
  

   deserves 
  particular 
  mention 
  on 
  account 
  of 
  the 
  fact 
  that 
  it 
  appears 
  

   to 
  be 
  a 
  novel 
  application 
  of 
  miscibility 
  for 
  such 
  a 
  purpose. 
  They 
  

   have 
  shown 
  that 
  the 
  alkaline 
  bases 
  augment 
  the 
  reciprocal 
  coef- 
  

   ficient 
  of 
  miscibility 
  of 
  water 
  and 
  phenol, 
  while 
  the 
  carbonates 
  

   act 
  in 
  the 
  opposite 
  direction. 
  They 
  prepared 
  2-normal 
  solutions 
  

   of 
  both 
  sodium 
  hydroxide 
  and 
  sodium 
  carbonate, 
  and 
  taking 
  

   50 
  cc. 
  of 
  these 
  solutions, 
  as 
  well 
  as 
  various 
  mixtures 
  of 
  them, 
  

   together 
  with 
  50 
  g. 
  of 
  phenol, 
  they 
  heated 
  the 
  resulting 
  mixtures 
  

   until 
  they 
  were 
  clear 
  and 
  then 
  determined 
  the 
  temperatures 
  at 
  

   which 
  a 
  turbidity 
  appeared 
  upon 
  cooling. 
  From 
  these 
  data 
  a 
  

   curve 
  was 
  drawn 
  from 
  which 
  the 
  amount 
  of 
  carbonate 
  in 
  any 
  

   mixtures 
  of 
  this 
  normality 
  could 
  be 
  determined 
  experimentally. 
  

   Similar 
  curves 
  were 
  formed 
  for 
  alkaline 
  solutions 
  of 
  %, 
  % 
  an( 
  ^ 
  

   y 
  8 
  the 
  strength 
  previously 
  mentioned. 
  It 
  was 
  found 
  that 
  the 
  

   temperature 
  of 
  turbidity 
  could 
  be 
  determined 
  easily 
  within 
  about 
  

   1/10° 
  C, 
  so 
  that 
  the 
  method 
  is 
  very 
  accurate. 
  The 
  process 
  was 
  

   applied 
  to 
  the 
  determination 
  of 
  carbon 
  dioxide 
  in 
  chimney 
  gas 
  

   by 
  allowing 
  a 
  known 
  volume 
  of 
  the 
  gas 
  to 
  bubble 
  through 
  a 
  solu- 
  

   tion 
  of 
  sodium 
  hydroxide 
  of 
  known 
  strength, 
  and 
  applying 
  the 
  

   method 
  for 
  determining 
  the 
  amount 
  of 
  carbonate 
  produced. 
  The 
  

   results 
  thus 
  found 
  were 
  very 
  satisfactory. 
  Similar 
  determina- 
  

   tions 
  have 
  been 
  made 
  by 
  the 
  measurement 
  of 
  the 
  electric 
  con- 
  

  

  