. American journal of pharmacy. Am. Jour. , 1903. Powder Mixer and Percolator Support. 409 on each arm). The end of each axle is shaped to receive a crank,though two are hardly ever needed except when very large quan-tities of powder are to be mixed. In using the mixer the powder ispassed through a coarse sieve into the mixer (to break up any pos-sible lumps), the lid screwed down, and by turning the crank thebox is caused to revolve. The height of the box, and the fact ot

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Keywords: ., bookcentury1800, bookdecade182, booksubjectpharmacy, bookyear1829