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SUMMARY OF TREATMENT (Treatments Shown in Columns Is Treatment Given Groups Shown Below)

Ten
Thirty Minutes' Pressure Two Hours' Pressure Three Hours' Pressure

Four Hours' Five Hours' Pressure Hours'
Pressure

Press're

30"

30

30"

30°

Group Group Group Group Group Group Group Group Group Group Group Group Group Group Group Group Group Group

No. 1 No. 2 No. 5 No.4 No. 5 No. 6 No. 7 No. 8 No.9 No. 10 No.11 No.12 No. 13 No. 14 No. 15 No. 16 No, 17 No. 18
Steam, 20 Lbs. None 1'00" 2'00" 4'00 6'00' None 2'00" 5'00'

2'00" 3'00" 4'00' None 2'00" None 5'00" 2'00" None
Blow-Off

None
30 30" 30' None 30' None

30" None
Initial Vacuum
30 30 30 30 30" 30 30' 1'00"

30' 30 30 30 30 30
Solution:
Introducing
10" 10' 101 10" 10 10"

10" 10"

10" 10"

10' 10" Press. 175 lbs.up in 1' 30" 1' 30" 1' 30" 1' 30' 1' 30" 1' 30" 1' 30" 1' 30' 1' 30" 1' 30' 1' 30" 1' 30"

1' 30 1' 30' 1' 30' 1' 30

1' 30' Pressure Held 30"

30 2' 00 2'00" 2'00" 3'00' 3'00" 3'00 3'00' 4' 00 4' 00 5' 00 5'00" 5'00' 10'00" Forcing Back 301

30 30 30 30" 30" 30" 30 30 30" 30 30 30 30° 30' 30" Total Time...

3' 10" 4' 40" 5' 40' 7' 40' 9' 40" 4' 40' 7' 10' 10' 10" 5' 40" 8'10" 9' 10' 10' 10" 6' 40" 9' 10" 7' 40' 13' 10' 10' 10" 12' 40"

10"

10"

10"

10"

1' 30

[blocks in formation]

ABSORPTION VOLUME PER CENT PERFORATED TIES-1/4 INCHES, CENTER TO CENTER

[blocks in formation]

DOUGLAS FIR, BURNETT-CHLORIDE ZINC

30'

None

None
30 301 30 30

None
30' 10

10"

10"

30" 30"

30"

30 30"

ABSORPTION VOLUME PER CENT NON-PERFORATED TIES

23.28

20.95
22.28

25.24
23.86

24.87
21.85

25.82

26.35
19.21

23.33

27.46
28.46

27.14

24.87

26.67

1st Run.
2nd Run.
3rd Run.
4th Run.
5th Run

24.23
18.99
18.89
24.39
21.75

28.73
31.59
26.03
23.49
23.86

22.49
23.23
24.97
24.97
26.56

General Average.

23.28

21.65

21.61

24.55

23.36

26.74

24.44

25.82

22.78

23.33

27.96

27.14

24.87

62.67

1st Run
2nd Run.
3rd Run
4th Run.
5th Run

..

35.02
30.25
34.76
33.33

31.95
34.65
29.68
31.05

35.24
40.20
38.93
36.77

43.48
32.21
40.52
34.06

General Average.

33.34

31.83

37.78

37.57

NOTE--Ties in Group No. 8 received 30 Lbs. Steam instead of 20 Lbs.
Office Manager Treating Plants, Topeka, Kan., September 30, 1921.

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