A shaving of wood curls up owing to the contraction on one side and expansion of the other. This expansion is accelerated by what is known as the "black iron" which is used in mos£ planes.*
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https://paperspast.natlib.govt.nz/newspapers/OG19120904.2.36
Bibliographic details
Ohinemuri Gazette, Volume XXIII, Issue 2988, 4 September 1912, Page 4
Word Count
36Untitled Ohinemuri Gazette, Volume XXIII, Issue 2988, 4 September 1912, Page 4
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