222  Milk  and  Butter  Tests  at  the  Liverpool  Show,  1910. 
The  milks  for  the  purpose  of  examination  were  put  into  a 
tube  graduated  to  show  sections  of  milk  from  Tn  to  T\  in  thick- 
ness— the  special  thicknesses  examined  being  TV,  ve,  and  -rV 
The  following  table  gives  the  coloured  glasses  used,  the 
developed  colour  measurements,  and  the  percentages  of  black 
to  orange  and  black  to  yellow. 
Colour  Measurements  of  Milk. 
No.  1.  Sample  of  Devon  Milk. 
Glasses  used 
Colours  Developed 
Percentage 
: of  Section 
Black 
Black 
Red 
Blue 
Yellow 
Black 
Orange 
Yellow 
to 
Orange 
to 
Yellow 
T<> 
3"0 
4-0 
6-0 
30 
1-0 
(Green) 
20 
750 
(Green) 
60-0 
4 ' 
8-4 
8-0 
24'0 
8-0 
•4 
15-6 
96-24 
33-90 
7 
re 
150 
140 
58-5 
14-0 
uo 
435 
93-34 
24-34 
No.  2. 
Sample  of  Separated  Milk,  Coloured. 
Te 
50 
30 
8-0 
3 0 
2-0 
30 
60  0 
500 
re 
10-0 
88 
332 
88 
1-2 
23-21 
88-0 
275 
tV 
96 
476 
392 
476 
484 
29-6 
49-88 
13-85 
No. 
3.  Sample  of  Separated  Milk,  not 
Coloured. 
tV 
5 6 
45 
8-0 
4-5 
IT 
24 
80-36 
65-22 
tV 
92 
90 
19-0 
90 
•2 
9-8 
97-83 
4787 
Te 
120 
120 
400 
120 
— 
280 
100  0 
300 
The  next  table  shows  by  comparison  (a)  the  decrease  of 
black  percentage  between  the  Devon  and  the  coloured  separated 
milk,  and  (b)  the  increase  of  black  percentage  in  the  plain 
separated  milk  when  compared  with  the  Devon. 
Percentage  of 
Black  to  Orange 
Percentage  of 
Black  toiYellow 
Section 
Devon  Milk  . 
Coloured  Separated 
i 
7 5 0 
600 
4. 
Te 
9524 
88*0 
Tff 
93-34 
49  58 
1 
TTj 
600 
50-0 
tV 
339 
27-5 
fff 
24  34 
13-85 
Percentage  decrease  of 
black  by  colouring  . 
15  0 
724 
4376 
10-0 
6-4 
10-49 
Separated  Milk,  not 
coloured  . 
Devon  .... 
8036 
750 
97  83 
96-24 
100-0 
93-34 
65-22 
600 
47-87 
33-9 
300 
24-36 
Percentage  increase  of 
black  by  separating  . 
5*36 
259 
6-66 
5-22 
3-97 
566 
