Table 4.4.  Feature characteristics.
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 Unit         Length       Width       Depth     Opening Area     Volume
               (ft)        (ft)        (ft)         (sq.ft)      (cu.ft)
------------------------------------------------------------------------
B  81           4.6         2.0         0.3          7.64          2.91
B  82           2.4         1.6         0.8          2.98          2.54
B  83           5.9         3.2         1.5         17.88         28.13
B  84           4.6         2.2         0.6          8.05          6.24
B  86           3.8         1.8         1.0          6.03          6.63
B  87           3.7         1.7         1.3          5.08          5.45
B  88           6.0         1.8         3.0          8.97         26.72
B  89           2.7         2.0         0.4          4.74          2.79
B  90           6.2         2.7         1.5         12.58         19.06
B  91           4.0         2.0         0.4          8.12          4.93
B  92           3.4         3.2         0.4          8.13          4.53
B  93           5.0         3.0         0.6         15.81         14.82
B  94           3.8         2.5         1.3          7.77          9.03
B  95           4.2         2.2         0.2          7.01          1.75
B  96           5.3         2.2         0.3         10.14          4.57
B  97           4.6         3.4         0.6         12.02          7.87
B  98           5.1         1.8         1.3          7.63         10.53
B  99           2.7         1.5         0.2          3.49          0.76
F   1           7.6         9.8         0.9         58.34         86.04
F   2*          5.5         5.0         0.6         21.65         12.15
F   3*          3.9         3.7         0.6         11.34          7.32
F   4           6.0         5.9          -          24.52         27.40
F 279           4.5         5.3         1.2         19.51         19.96
F 280           5.7         6.5          -          28.74         35.48
F 281           2.4         2.6          -           4.71          1.57
F 282**         1.9         2.4         0.3          3.50          0.72
F 283           2.0         2.0         0.7          2.92          1.29
F 284           5.5         6.0         1.4         25.44         32.86
F 285           4.4         2.8         0.9          9.66          7.28
F 286           3.8         3.6          -          10.55          6.69
F 287*          5.1         2.6         0.8         10.90          8.82
F 288           3.5         3.4         1.6          9.18         12.67
F 289           5.2         7.2         1.0         34.77         27.84
F 290           2.8         3.2         0.3          6.34          1.53
F 291           5.6         4.3         1.0         18.51         12.55
F 292           4.7         4.4         0.5         16.45          8.49
F 293           4.2         4.3         0.4         14.25          6.02
F 294           3.7         4.1         0.4         11.06          5.02
F 295           5.7         5.6         1.3         24.01         27.11
F 296           3.4         2.8         0.8          6.78          3.31
F 297           2.5         2.0         0.3          3.88          1.54
F 298           4.0         3.8         0.4         11.40          5.16
F 299            -           -          0.4         15.07          6.24
F 300**         1.7         1.2         0.2          1.60          0.21
F 302**         1.0         0.9         0.3          0.71          0.14
F 303**         0.9         0.9         0.1          0.64          0.04
F 304**         1.1         1.1         0.5          0.95          0.32
F 305**         1.0         0.9         0.3          0.71          0.14
F 306**         0.5         0.8         0.1          0.31          0.02
F 307**         0.8         1.1         0.1          0.69          0.05
F 308           2.0         1.8         0.4          2.26          1.02
F 309+           -           -           -           1.76          0.35
F 310           5.4         4.9         0.9         19.90         19.66
F 311**         3.0         2.2         0.3          5.43          1.04
F 312*          3.2         3.0         0.9          7.54          7.71
F 313           5.8         6.0         1.3         27.11         45.05
F 314*          3.4         2.6         4.4          6.94         24.78
F 315+          1.8         1.9          -           2.40          0.12
F 316**         2.3         2.2         0.3          3.51          0.79
F 317           1.7         2.0         0.6          2.58          1.36
F 318           2.5         2.8         0.9          4.86          3.37
F 319*          3.1         2.9         2.2          6.74         14.00
F 320           5.6         4.8         1.0         18.74         20.42
F 321           6.8         6.5         1.0         32.06         29.10
F 322**         2.9         2.9         0.3          6.74          1.32
F 323           8.6         5.9         0.5         37.66         27.10
F 324**         5.0         2.5         0.1         12.33          0.65
F 325           3.8         3.1         3.6          8.85         59.44
F 326           4.3         4.4         1.0         12.95          9.79
F 327**         1.6         2.8         0.3          3.73          0.70
F 328**         2.7         2.1         0.4          4.19          1.19
F 329           2.1         1.8         1.0          2.88          2.68
F 330           2.4         2.5         0.6          5.23          2.30
F 331**         2.8         2.6         0.4          5.25          1.52
F 332           4.5         4.1         0.4         13.66          6.96
F 333           3.9         3.9         0.4         12.27          8.14
F 334           6.0         4.0         1.1         20.64         21.01
F 335           2.2         2.2         1.0          3.60          3.55
F 336           4.2         4.2         2.0         13.99         13.66
F 337           4.7         0.9         1.0          3.32          0.77
F 338           4.7         4.6         3.5         15.85         48.94
F 339           4.0         3.5         1.7          9.87         13.43
F 340           4.0         3.6         1.3          9.97         13.80
F 341           7.0         6.6         2.5         31.18         64.49
F 342           4.9         4.6         1.5         17.58         16.16
F 343           5.8         5.4         1.0         23.02         23.94
F 344**         0.9         2.1         0.2          1.48          0.20
F 345**         3.5         4.2         0.3         10.91          2.31
F 346           5.3         2.3         0.9         10.33         14.37
F 347**         1.2         1.4         0.2          1.32          0.18
F 348**         3.3         2.6         0.2          6.74          0.90
F 349*          2.7         3.9         1.0         10.27          8.78
F 350*          2.2         3.9         0.8          7.48          6.71
F 351**         2.3         1.8         0.3          3.34          0.65
F 352*          7.4         5.2         0.4         35.46         11.52
F 353           4.0         4.6         0.6         15.03         10.71
F 354           4.4         3.9         0.5         12.42          7.33
F 355           2.4         2.5         0.4          4.59          2.12
F 356**         3.0         2.8         0.2          7.29          0.88
F 357**         1.3         1.1         0.1          1.12          0.07
F 358           5.5         6.1         3.8         25.99         67.74
F 359           6.9         6.6         2.6         33.35         67.37
F 360           3.4         3.0         2.2          8.40         15.94
F 361           6.0         5.0         2.6         27.48         44.32
F 362           2.9         2.8         1.0          5.92          5.26
F 363           2.0         1.1         0.5          1.73          0.06
F 364           2.9         2.8         0.5          5.88          2.91
F 365           4.9         4.6         0.4         18.47          6.46
F 366           5.0         4.7         1.2         17.82         17.74
F 367           2.7         2.8         1.2          6.49          6.90
F 368           6.0         5.6         1.1         26.99         23.44
F 369           2.4         4.0         0.8          8.29          7.51
F 370*          3.5         3.1         0.7         10.34          7.13
F 371           5.2         4.2         0.3         16.36          7.18
F 372           2.2         2.4         0.8          4.03          2.57
F 373           2.9         2.5         1.0          5.40          3.91
F 374           5.0         6.3         1.4         24.08         24.95
F 375           3.0         1.9         0.4          4.67          2.90
F 376           4.9         4.8         1.8         17.57         23.84
F 377           3.4         3.8         0.4          8.93          4.04
F 378           5.9         2.7         2.3         15.65         37.40
F 379           3.1         1.8         1.2          4.51          4.89
F 380           2.3         4.3         0.8          7.98          6.49
F 381           2.9         3.4         0.6          8.07          5.03
F 382           3.2         4.5         1.5         10.80         16.53
F 383           7.1         7.1         2.8         38.95         75.90
F 384**         3.4         2.3         0.3          7.06          1.23
F 385**         2.2         2.8         0.3          4.99          0.97
F 386           3.5         3.4         0.3          9.38          3.91
F 387           5.9         3.5         0.5         17.94         12.21
F 388           4.7         5.5         0.6         19.61         16.19
F 389           4.9         5.4         1.5         19.70         26.48
F 390           5.2         4.3         2.1         18.73         31.24
F 391           3.4         2.7         0.5          7.56          5.44
F 392           1.8         2.7         1.0          4.20          4.49
F 393           4.2         4.4         0.8         19.84         13.56
F 394           3.1         2.8         0.8          5.67          3.86
F 395           3.0         3.2         1.1          7.06          7.77
F 396           2.1         4.3         0.8          7.30          7.99
F 397           2.3         1.8         1.1          3.36          3.82
F 398           2.4         3.0         0.7          5.40          4.17
F 399           4.0         4.5         1.4         14.18         18.61
F 400           3.2         3.2         1.2          7.99          7.84
F 401**         1.2         0.8         0.3          0.75          0.15
F 402**         1.0         1.5         0.4          1.18          0.31
F 403**         3.2         2.2         0.2          6.46          0.74
F 404           2.8         2.4         1.4          5.07          6.38
F 405           8.0         8.6         1.7         47.36         72.82
F 406           6.5         6.2         1.9         30.54         50.84
F 407           5.8         5.3         1.4         23.46         27.86
F 408+           -           -           -          13.32          2.66
F 409**         3.4         3.3         0.2          8.66          1.17
F 410           3.1         4.1         1.0         12.71         11.22
F 411           2.9         3.2         0.5          7.17          3.59
F 412**         1.3         2.0         0.3          2.04          0.41
F 413+           -           -           -          20.01          8.00
F 414           3.1         2.4         1.5          5.86          4.25
F 415           6.2         5.1         2.1         24.91         49.61
F 416           4.5         4.6         1.1         15.63         15.56
F 417**         3.8         2.7         0.3          7.88          1.61
F 418           5.1         4.9         2.2         18.44         34.98
F 419           3.4         3.5         0.6          9.64          5.86
F 420**         2.2         2.2         0.4          3.49          1.01
F 421**         2.9         3.2         0.4          7.24          1.94
F 422**         2.0         2.4         0.3          3.80          0.75
F 423           4.2         4.4         1.4         14.30         14.97
F 424           2.1         2.1         0.5          3.27          1.15
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- := not recorded
*  Volume calculated with regression formula
** Volume derived from elliptical formula
+  Volume estimated by inspection