﻿Commissioner 
  of 
  Agkicultuee. 
  439 
  

  

  taining 
  more 
  than 
  4 
  per 
  cent, 
  of 
  fat 
  a 
  trifle 
  too 
  low; 
  bnt 
  they 
  will 
  

   amount 
  to 
  less 
  than 
  ,1 
  of 
  1 
  per 
  cent. 
  

  

  If 
  it 
  is 
  desirable 
  to 
  get 
  more 
  accurate 
  results, 
  the 
  following 
  cor- 
  

   rections 
  can 
  be 
  made: 
  

  

  For 
  milks 
  containing 
  less 
  than 
  1^ 
  fat, 
  subtract 
  .00. 
  

  

  For 
  milks 
  containing 
  from 
  1 
  to 
  2^ 
  fat, 
  subtract 
  .00. 
  

  

  For 
  milks 
  containing 
  from 
  2 
  to 
  3^ 
  fat, 
  subtract 
  .03. 
  

  

  For 
  milks 
  containing 
  from 
  3 
  to 
  4^ 
  fat, 
  subtract 
  .00. 
  

  

  For 
  milks 
  containing 
  from 
  4 
  to 
  o^ 
  fat, 
  add 
  .03. 
  

  

  For 
  milks 
  containing 
  from 
  5 
  to 
  6^ 
  fat, 
  add 
  .00. 
  

  

  Adding 
  .03 
  for 
  each 
  increase 
  of 
  1 
  per 
  cent, 
  of 
  fat. 
  

  

  In 
  the 
  same 
  report 
  he 
  still 
  further 
  simplifies 
  by 
  giving 
  also 
  the- 
  

   following 
  formula 
  : 
  

  

  In 
  the 
  twelfth 
  annual 
  report 
  of 
  the 
  Wisconsin 
  Station, 
  1895, 
  

   S. 
  M. 
  Babcoch 
  makes 
  another 
  report 
  on 
  the 
  relation 
  of 
  total 
  solids 
  

   to 
  specific 
  gravity 
  and 
  fat, 
  in 
  which 
  he 
  states 
  that 
  ex}>erience 
  at 
  

   that 
  station 
  has 
  shown 
  the 
  constant 
  as 
  used 
  in 
  former 
  fonnulse 
  to* 
  

   be 
  too 
  large 
  for 
  the 
  average 
  milks 
  of 
  this 
  country 
  ; 
  and 
  recom- 
  

   mends 
  changing 
  to 
  2.5, 
  which 
  would 
  then 
  make 
  the 
  .corrected 
  for- 
  

   mula 
  to 
  read 
  as 
  follows: 
  

  

  ^ 
  /lOOSpg-SpffF 
  \, 
  

  

  ^ 
  =( 
  l00-l 
  0753 
  Ipg 
  F 
  - 
  ' 
  )(100-F) 
  2.5 
  + 
  F 
  

  

  It 
  is 
  claimed 
  that 
  this 
  formula 
  '' 
  Avill 
  in 
  most 
  cases, 
  when 
  applied 
  

   to 
  normal 
  milks, 
  give 
  results 
  agreeing 
  closely 
  with 
  those 
  obtained 
  

   by 
  gravimetric 
  analysis." 
  By 
  an 
  inspection 
  of 
  a 
  table 
  made 
  out 
  

   on 
  this 
  formula, 
  Babcock 
  found 
  that 
  practically 
  the 
  solids 
  in- 
  

   creased 
  at 
  the 
  rate 
  of 
  . 
  25 
  for 
  each 
  lactometer 
  de2:ree 
  and 
  . 
  02 
  for 
  

   each 
  tenth 
  per 
  cent, 
  of 
  fat. 
  

  

  This 
  relation 
  would 
  be 
  expressed 
  by 
  the 
  formula 
  

  

  T 
  = 
  ~+ 
  1.2 
  F 
  

   4 
  

  

  As 
  is 
  noticed 
  bv 
  Babcock 
  this 
  is 
  identical 
  with 
  the 
  original 
  short 
  

   formula 
  of 
  Hehncr 
  aritl 
  TJiehniond, 
  given 
  al)()ve. 
  

  

  