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Title: The Building Materials of Otago; Read before the Otago Institute 5th September, 1876

Author: William N. Blair

In: The Pamphlet Collection of Sir Robert Stout: Volume 64

Publication details: Victoria University of Wellington Library, Wellington

Part of: The Pamphlet Collection of Sir Robert Stout

License: Creative Commons Attribution-Share Alike 3.0 New Zealand Licence

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The Pamphlet Collection of Sir Robert Stout: Volume 64

Table IV. — Weight and Strength of Otago Timbers, with English and Foreign Examples

Popular Name Botanical Name. Weight, per cubic foot, dry, according to Balfour. STRENGTH. ELASTICITY. Toughness. Remarks. OTAGO TIMBERS. WsET 1 Black Mapau Pittosporum tenuifolium 60.14 243 2152 114.08 Doubtful, being the result of one experiment only. 2 Red Mapau ... Myrsine urvillei ... ... 61.62 192.4 169.88 92.94 3 White Mapau Carpodetus serratus 51.24 177.6 166.86 51.64 4 Manuka Leptospermum ericoides 59.00 239 239.5 116.58 5 Rata ... ... Metrosideros lucida ... 65.13 196 244.2 94.23 6 Kowhai ... Sophora tetraptera ... 55.11 207.5 198.05 79.19 7 Pokaka ... Elœcarpus dentatus ... 35.03 125 200.7 97.65 8 Cedar ... ... Libocedrus bidwillii ... 39.69 120 136.7 32.43 9 Miro ... ... Podocarpus ferruginea ... 49.07 197.2 230.24 128.05 10 Totara ... Podocarpus totara ... 35.17 133.6 124.6 58.85 11 Black Pine ... Podocarpus spicuta ... 40.74 190 156.22 90.86 12 White Pine ... Podocarpus dacrydioides 30.43 106 127.1 49.07 13 Red Pine Dacrydium cupressinum 39.25 140.2 143.88 79.66 14 Silver Birch ... Fagus menziesii ... ... 38.99 158.2 116 62.04 15 Red Birch ... Fagus fusca ... ... ... 48.62 202.5 219.5 87.28 ENGLISH AND FOREIGN EXAMPLES. 16 Australian Iron Bark ... ... ... ... 70.92 282.7 297 192.31 17 Blue Gum ... ... ... ... 60.66 214.8 259.6 191.78 18 English.Oak ... ... ... ... ... 55.96 128.5 127 105.36 According to Barlow. 19 51.72 176.4 257.3 150.79 " Laslett. 20 Ash ... ... ... ... ... 46.19 169.2 180 115.90,, Burlow. 21 " " 46.00 188.5 331.6 133.90,, Lnslett. 22 Memel Doal ... ... ... ... ... ... 36.77 144.25 116 ...,, Barlow. 23 English Beech ... ... ... ... ... ... 43.37 129.66 195.8 134.58,,,, 24 Riga Fir ... ... ... ... ... 46.46 89.9 107.7 79 95,,,, 25,,,, ... ... ... ... ... 33.81 131.2 435.4 221.76,, Laslett. 26 English Elm ... ... ... ... ... 34.21 87.9 82.2 74.08,, Barlow. 27,,,, ... ... ... ... ... 31.87 86 145.15 99.51,, Laslett. 28 Kauri ... ... ... ... ... ... 34.31 157.42 117.46 338.86 29,, ... ... ... ... ... ... 38.96 165.5 181.27 92.98,, Balfour.

Table IV.

Weight and Strength of Otago Timbers, with English and Foreign Examples.