Mines

Deep holes or tunnels in plant parts caused by burrowing insects or their larvae.

Mines

[Prohibition of Child Labour Underground] An estimated 3000 boys were affected by the new law, which was passed on 30 July 1900. The act was repealed in full by the Mines and Quarries Act 1954 (c. 70). ...
Found on http://en.wikipedia.org/wiki/Mines_(Prohibition_of_Child_Labour_Underground
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