This produces surfacehardening, leaving the interior of the casting in an elasticstate. If the powder is mixed with any other ingredient, atemperature of 290° to 310° Fah. should be employed, so asto secure partial fusion of the leather. Disinfection with Sulphurous Acid. At the instance of the… … * i » i m Instinct op Bees —Here is something new, and whetherit exists in fact or not, it forcibly exhibits what.most peoplecall the instinct of bees. In a hot dry valley in NewSouth Wales, the bees suffered last year from a long-con-tinued drought. This year, says a contemporary of thatcolony,…
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