AUVENDIX II. (continued)—CUBIC CONTENTS OF ROUND LOGS = Length ×

MEAN GIRTH IN FEET AND INCHES.

Length
in feet.

Length in feet.

30

70.4

85.8
29 88.8

7
7'-1" 7'-2" 7'-8" 7'-4" 7'-5" 7'-6"
10 30.6 31.4 32.1 32.9 33.6 34.4 35.2 35.9 36.7 37.5 38.4 39.2 10
11 33.7 34.5 35.3 36.1 37.0 37.8 38.7 39.5 40.4 41.3 42.2 43.1 11
12 36.8 37.6 38.5 39.4 40.3 41.3 42.2 43.1 44.1 45.0 46.0 47.0 12
13 39.8 40.8 41.7 42.7 43.7 44.7 45.7 46.7 47.8 48.8
49.9 50.9 13
14 42.9 43.9 44.9 46.0 47.1 48.1 49.2 50.3 51.4 52.6 53.7 54.8 14
15 45.9 47.0 48.2 49.3 50.4 51.6 52.7 53.9 55.1 56.3 57.5 58.8 15
16 49.0 50-2 51.4 52.6 53.8 55.0 56.2
57.5 58.8 60.1 61.4 62.7
52.1 53.3 54.6 55.8 57.1 58.4 59.8 61.1 62.5 63.8 65.2 66.6
18 55.1 56.4 57.8 59.1 60.5 61.9 63.3 64.7 66.1 67.6 69.0 70.5 18
19 58.2 59.6 61.0 62.4 63'9 65.3 66.8 68.3 69.8 71.3 72.9 74.4 19
20 61.3 62.7 64.2 65'7 67'2 68.8 70'3 71.9 73.5 75.1 76.7 78.3 20
21 64.3 65.9 67.4 69.0 70.6 72.2 73.8 75.5 77.1 78.8 80.5 82.3 21
22 67.4 69.0 70.6 72.3 73.9 75.6 77.3 79.1 80.8 82.6 84:4 86.2 22
72.1 73.8 75.6 77.3 79.1 80.9 82.7 84.5 86.3 88.2 90.1 23
24 73.5 75.3 77.0 78.8 80'7 82.5 84.41 86.3 88.2 90.1 92.0 94.0 24
25 76.6 78.4 80.3 82.1 83.0 85.9 87.9 89.9 91.8 93.8 95.9 97.9
25
26 79.6 81.5 83.5 85.5 87.4 89.4 91 4 93.4 95.5 97.6 99.7 101.8
27 82.7 84.7 86.7 88.7 90'7 92.8 94.9 97.0 99.2 101-4 103.5 105.8
87.8 89.9 92.0 94.1 96.3 98.4 100-6 102.9 105.1 107-4 109.7
90.9 93.1 95.3 97.5
99.7 102'0 104.2 106.5 108.9 111.2 113.6
91.9 94.1 96.3 98.6 100-8 103.1 105.5 107.8 110.2 112.6 1151 117.5

ייד-י7

7'-8" 7'-0" 7'-10" 7'-11′′

" 8

'

8'-5" 8

'-8" 8'-9" 8'-10" 8'-11"

40.0 40.8 41.7 42.5 43.4 44.3
44.0 44.9 45.9 46.8 47.7 48.7
48.0 49.0 50.0 51.0
52.1 53.1
52.0 53.1 54.2 55.3 56.4 57.6
56.0 57.2 58.4 59.6 60.8 62.0
60.0 60.3 62.5 63.8 65.1 66.4

46.0 46.9 47.9 48.8 49.7
49.7 50.7 51.6 52.6 53.6 54.7
54.2 55.3 56.3 57.4 58.5 59.6
58.7 59.9 60.0 62.2 63.4 64.6
63.2 64.5 65.7 67.0 68.3 69.6
67.7

16
17

66.7 68.1 69.4
70.8
68.0 69.4 70.9 72.3 73.8 75.3 76.8 78.3
72.0 73.5 75.0
78.1 79.7 81.3 82.9
76.0 77.6 79.2
82.5 84.1 85.8 87.5
80.0

76.6 78.0
79.8 81.3 82.9
84.5 86.1
89.2 90.9 92.6 94.4

36

39

40

94.9 97.2 99.5 101.8 104-2 106.6 1090 1114 113.9 116-4 118.9 121.4
98.0 100-3 102.7 105.1 107-6 110-0 112.5 115.0 117.6 120-1 122-7 125.3
101.1 103.5 105.9 108.4 110 9 113.5 116-0 118.6 121.2 123·9 126.6 129.3
104.1 106.6 109-1 111.7 114.3 116'9 119.5 122.2 124.9 127 6 130.4 133.2
107.2 109.8 112.4 1150 117 6 120-3 123-0 125 8 128-6 131.4 134.2 137·1
110.3 112.9 115.6 118.3 121.0 123.8 126.6 129.4 132-2 1351 138.1| 1410
113.3 116-0 118.8 121.6 124.4 127.2 130-1 133 0 135.9 138 9 141.9 144.9
116 4 119.2 122.0 124.8 127-7 130.6 133-6 136 6 139-6 142.6 1457 148.8
119.4 122.3 125.2 128.1 131.1 134.1 137-1 140-2 143-3 1464 149.6 152-8
122.5 125.4 128.4 131-4 134-4 137·5 | 140·6 | 143 8 1469 150·2 153-4 1567

APPENDIX II. (continued)-CUBIC CONTENTS OF ROUND LOGS = Length x

(Mean Girth)

2

in Cubic Feet and Decimals of 1 Cubic Foot.

14

70.9

72.2

73.5

74.9

76.2

77.6

79.0

80.4 81.8

83.2

84.6

86.0

15

75.9

77.4

78.8

80.2

81.7 83.1

84.6

86.1 87.6 89.1

90.7 92.2

81.0 82.5 84.0 85.6 87.1 88.7 90.2 91.8
86.1 87.7 89.3 90.9 92.6 94.2 95.9 97.6 99.3 101.0 102-7 104.5
91.1 92.8 94.5 96.3 98.0 99.8 101-5 103.3 105.1 106.9 108.8 110.6
96.2
99.8 101.6 103-4 105.3 107.2 109-1 111-0 112.9 114.8 116.8
98.0
101.3 103.1 105-0 1070 108.9 110-8 112.8 114.8 116.8 118-8 120.9 122.9 20
106-3 108.3 110-3 112-3 114-3 116-4 118.5 120-5 1226 124.8 126-9 129.1
1114 113-4 115.5 117.6 119.8 121.9 124.1 126-3 128.5 130-7 1330 135.2 22
116-4 1186 120-8 123-0 125.2 127.5 129 7 132-0 134-3 136-7 139-0 141.4
121.5 123 8 126.0 128.3 130.7 133-0 135.4 137.8 140.2 142-6 1450 147.5
126.6 128.9 131-3 133-7 136-1 138 6 141.0 143.5 146-0 148.5 151.1 153.7

93.4 95.1 96.7 98.3

81.3 82.6

84.0

85.4

86.8

88.2

89.6

91.0

92.4

93.9

95.4

96.8

87.5 89.0

90.4

91.9

93.4

94.9 96.5

98.0

99.6 101-1 102-7 104.3

93.8 95.3

96.9 98.5 100-1 101.7 103·4 1050 106.7 108.3 1100 111.7

100.0 101.7 103.4 105.1 106.8 108.5 110.2 1120 113.8 115.6 117-4 119.2
106.3 1080 109.8 111.6 113.5 115-3 117-1 119-0 120.9 122-8 124-7 126.6
112.5 113-4 116.3 118.2 120.1 122-1 124.0 1260 128.0 1300 132.0 | 134.1
19 118.8 120.7 122.7 124.8 126.8 128.9 130.9 1330 135 1 137.2 1394 141.5
125.0 127.1 129.2 131-3 | 133·5 | 135.6 137-8 1400 142.2 144.5 146-7 149.0
131.3 133-4 135-7 137.9 140-1 142-4 144-7 147-0 149.3 151.7 154-0 156.4
137.5 139.8 142-1 144.5 146.8 149.2 151.6 154.0 156-4 158.9 161-4 163.9
143.8 146-2 148.6 1510 153.5 1560 158.5 161.0 163 6 166.1 168.7 171.3
1500 152.5 155 0 157.6 160.2 162.8 165-4 168.0 170-7 173.3 1760 178.8
156-3 158.9 161-5 164.2 166.8 169.5 172-3 175.0 177.8 180.6 183-4 186.2
162.5 165.2 168.8 1707 173.5 176-3 179-2 182.0 184.9 187.8 1907 193.7
168.8 171.6 174.4 177-3 180-2 183-1 186-0 189-0 192-0 1950 198.0 201·1
175.0 177.9 180.9 183.9 186.9 189.9 192.9 196-0 199-1 202-2 2054 208.6
1813 1843 187.3 1904 1935 196-7 1998 203-0 206.2 209-5 212-7 216.0
187.5 1906 193-8 197.0 200-2 203-5 206-7 2100 2133 216-7 220-1223.5

25
131-6 134.1 136.5 139.0 141-6 144-1 146-7 149-2 151-8 154-5 157.1 159.8 26
136-7 139-2 141-8 144-4 147.0 149-6 152.3 1550 157.7 1604 163-2 165.9 27
141.8 1444 147-0 149-7 152-4 155.2 157.9 160-7 163.5 166.4 169.2 172.1
146.8 149.5 152.3 155·1 157.9 160.7 163.6 166.5 169 4 172-3 175-3 178.2
151.9 154.7 157-6 160.4 163-3 166-3 169.2 172-2 175-2 178.2 1813 184.4 30
156.9 159-9 162.8 165-8 168.8 171.8 1749 177.9 1810 184.2 187-3 190⚫5 31
162.0 165.0 168.1 171.1 174-2 177-3 180-5 183-7 186-9 190.1 1934 196.7 32
167.1 170.2 1733 1765 179-7 182-9 186-1 1894 192-7 196-1 199.4 202.8 33
172.1 175-3 178.6 181-8 185.1 188.4 191-8 195-2 198.6 2020 2055 209.0 34
177.2 180-6 183.8 187.1 1906 194-0 197-4 200-9 204 4 207-9 2115 215-1 35
36
182.3 1856 189-1 192 5 1960 1995 203-1 206.6 210.2 213-9 217-6 221-3
187-3 190 8 194-3 197 9 2014 2051 208.7 212-4 2161 219.8 223.6 227.4
192-4 1960 1996 203.2 206·9 210-6 214.3 218-1 221-9 225.8 229.6 233.6 38
197.4 201·1 204-8 208-6 212·3 216-12200 223.9 227-8 231-7 235 7 239-7 89
202.5 206-3 2101 213 9 2178 221.7 255-6 229-6233.6 237 7 241-7 245-9

193-8 1970 200-3 203-6 206.9 210.2 213.6 217·0 2204 223.9 227-4 230.9 200.0 2033 206-2 2101 213.6 217.0 220.5 224.0 227.6 231.1 234-7 238-3 206-3 2097 213.2 216-7 220-2 223.8 227·4 231-0 234-7 238-3 242-1 245.8 212-5 216.1 219-6 223-3 226.9 230.6 234-3 238 0 241.8 245.6 249-4 253-2 218.8 222-4 226-1 229.8 233.6 237-4 241-2 245 0 248.9 252.8 256-7 260.7 225.0 228.8 232-6 236-4 240-2 244·1 248·1 252 0 2560 2600 264.1 268.1 231-3 235-1 239-0 243-0 246·9 250-9 255-0 259-0 263-1 267-2 271-4 275 6 237.5 241.5 245.5 245.5 253.6 257-7 261-8 266.0 270-2 274.5 278-7 283.0 243.8 247-8 251.9 256-1 260·3 264.5 268.7 273-0 277-8 281-7 286.1 290.5 40 250-0 254.2 258-4262.7 | 266.9 271·3 275.6 280-0 | 284-4288.9 293-4297.9

407

APPENDIX III. AVERAGE YIELD TABLES,

For SCOTS PINE, SPRUCE, BEECH, AND OAK IN GERMANY (compiled chiefly from Forst- und Jagd-Kalendar and Lorey's Handbuch der Forstwissenschaft, 1903).

Note. The average annual increment of the crop at any given age may be found by dividing the total yield by the number of years in age. The current annual increment can be found approximately for short periods of 5 or 10 years by subtracting the estimated yield at present age from that anticipated 10 years hence, and dividing the result by 10.

In Germany timber includes everything down to a top-diameter of 23 inches (7 centimetres) measured over bark. To reduce the tables to the customary British (square-of-quarter-girth) measurement down to 3 inches top-diameter, the German data have been reduced by only 20 per cent (in place of the 21 per cent, so that the result is somewhat more than the correct amount) for measurement over bark ; and a further reduction of 15 per cent (or 35 per cent in all) is made for the usual bark-allowance of 1 inch per foot of mean girth.

There are no German tables which give the yield of Oak and other hardwoods down to 6 inches top-diameter only, as is the customary timber measurement in Britain. And concerning the tables here given for Scots Pine, Spruce, and Beech, it will be seen that, as regards the number of trees per acre, and their small size up to 30 or 40 years of age, very great differences exist between British and Continental methods of growing timber-crops. Consequently these tables are not likely to be of much practical value for any part of the United Kingdom.

87

220 198 14.0 8060

7350

480 440

20 23 2140 20

210 3060

350 330 20

4530

240 181 13.4 6730

14:4 7030

5510

3160

1090

3330