﻿Report 
  of 
  Edward 
  J. 
  Wheeler. 
  

  

  Mr. 
  Charles 
  A. 
  Wieting, 
  Commissioner 
  of 
  Agriculture, 
  Cajjitol, 
  

   Albany, 
  N. 
  Y.: 
  

  

  Dear 
  Sir. 
  — 
  I 
  have 
  the 
  honor 
  to 
  transmit 
  herewith 
  a 
  report 
  

   on 
  methods 
  of 
  calcnlating 
  total 
  solids 
  in 
  milk 
  samples, 
  when 
  the 
  

   lactometer 
  reading, 
  or 
  specific 
  gi'avity 
  and 
  the 
  amount 
  of 
  fat 
  are 
  

   kno\^Ti. 
  

  

  Questions 
  have 
  frequently 
  arisen 
  in 
  regard 
  to 
  one 
  or 
  another 
  

   formula, 
  and 
  samples 
  have 
  been 
  taken 
  by 
  inspectors 
  of 
  this 
  Depart- 
  

   ment, 
  when 
  a 
  Babcock 
  fat 
  test 
  and 
  the 
  calculation 
  would 
  have 
  

   shown 
  that 
  the 
  sample 
  of 
  milk 
  under 
  suspicion 
  w"as 
  really 
  above 
  

   the 
  State 
  standard. 
  

  

  METHODS 
  FOE 
  CALCULATING 
  SOLIDS 
  IIS" 
  IflLK, 
  WHEX 
  

   LACTOMETER 
  READING, 
  OR 
  SPECIFIC 
  GRAVITY 
  

   AND 
  PER 
  CENT. 
  OF 
  FAT 
  ARE 
  KNOAVN. 
  

  

  F. 
  Clausnizer 
  and 
  A. 
  Mayer 
  in 
  1867, 
  assumed 
  that 
  each 
  per 
  

   cent, 
  of 
  solids 
  not 
  fat 
  raised 
  the 
  specific 
  gravity 
  ,00375, 
  and 
  that 
  

   each 
  1 
  per 
  cent, 
  of 
  fat 
  lowered 
  it 
  .0010. 
  

  

  From 
  this 
  they 
  f 
  onnulated 
  as 
  follows 
  : 
  

  

  1-|-(T 
  — 
  F).00375 
  — 
  Spg. 
  = 
  .0010r. 
  or 
  

  

  Spg.-|-F. 
  00475— 
  1 
  

  

  Total 
  solids 
  = 
  ^^o^r 
  

  

  .VOoi 
  5 
  

  

  In 
  December, 
  1887, 
  Hehner 
  and 
  Richmond 
  read 
  before 
  a 
  meet- 
  

   ing 
  of 
  the 
  Society 
  of 
  Public 
  Analysts 
  of 
  England 
  a 
  paper 
  on 
  the 
  

   relation 
  of 
  solids, 
  fat 
  and 
  specific 
  gravity 
  of 
  milk. 
  

  

  437 
  

  

  