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Scientific American, Vol. 97, No. 8 (August 1907) (1907)

leaf 8

An illustration from Scientific American, Vol. 97, No. 8 (August 1907), 1907, leaf 8
THE TYPHONOID VIEWED FROM THEFRONT. 46; ordinary quality from 50 to 60; and soft macadamas high as 97 pounds per ton. The best gravel andcobbles are given as 57 and 60 respectively, whileordinary and very bad cobbles are placed at 130 and240 pounds. Dry, hard clay is said to offer a resist-ance of… … Gigantic Model of the Destructive Cotton BollWeevil. MAGNIFIED MODELS OF INSECT PESTS. BY DAY ALLEN WILLEY. One of the most unique and interesting industriesin this country is the reproduction of minute formsof life by means of models of such size that theanatomical features of each creature can be…

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