WONDER
Why is There a Hollow in the Face of a Brick? If we watch a bricklayer at work wo shall notice that he places a lump of mortar on the last brick lie lias laid, smoothes it. and then places the next brick on the mortar, hollow downwards, so that it readily sinks into position. When it has dried, the mortar in the hollow becomes practically part of the brick, while it also helps to cement the brick more firmly ,to the -whole, so that the completed wall is much stronger and more compact.
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https://paperspast.natlib.govt.nz/newspapers/HAWST19261218.2.121
Bibliographic details
Hawera Star, Volume XLVI, 18 December 1926, Page 18
Word Count
95WONDER Hawera Star, Volume XLVI, 18 December 1926, Page 18
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