OCR Text |
Show Wood Lighter Than Cork. Notwithstanding' all the achievements achieve-ments of practical science thoro aro somo Indispensable materials tho making of which 1b still nature's secret, se-cret, and for which no entirely successful suc-cessful substitute has been found. Among these substances Is corlt. It Is possible, however, that nature her-solf, her-solf, In this caso, oftors us a suhstl-tuo suhstl-tuo in tho east coast of Lako Tchad. In Afrlcn, which Is of oven less specific speci-fic gravity than cork. |