Tho wonderful power of bone stri\'jl lire has been tested scientifically to' show how hollow bone bears strain. A very small bono, only one. square millimetre. (.oli>s squaro iiifhl in diameter, will hold .1311). in .suspension without breaking, while a piece of the best oak of the same, thickness will hold up only 221b. Tho bone is, therefore, half again as strong as tho solid oak. Nature is economical in the w.iight given .to bones, making th'eni hollow and at. the same time malting tlieni stronger than if they were solid and much heavier. This principle lias been recognised in mechanics, as engineers use hollow steel tubes-instead of solid to meet great strain. For Bronchial. Coughs and Colds, Woods' Great Peppeiii)i» v
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https://paperspast.natlib.govt.nz/newspapers/DOM19121129.2.89.1
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Dominion, Volume 6, Issue 1610, 29 November 1912, Page 7
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122Page 7 Advertisements Column 1 Dominion, Volume 6, Issue 1610, 29 November 1912, Page 7
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