^mnixfu ^mmtm. November 19, 1892.] 327 Jflanafacture of Alum in India. THE LIFE-SAVING ROCKET GBAFNEL, In a recent issue of the Indian … into square earthen vats about 10 |_ Very many of the plans lacked nov- ft. long and 2 ft. deep. Water is elty. LIFE-SAVING ROCKET GRAPNEL. then slowly added until its level is The work of deciding to whom nearly up to that of the shale. The soaked portion maximum height, but, as low-pitched rooms…
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