. An introduction to practical pharmacy [microform] : designed as a textbook for the student and as a guide to the physician and pharmaceutist : with many formulas and prescriptions . Fig. 106. Fig. 107. Tin displacer, with upper and lower diaphragm. phragm is made to rest, as in the French coffee-pot and in the air-tight displacer, Fig. Ill; the object of this is to allow the passageof air from the lower or receiving vessel into the top of thecylinder. The Queensware Displacer.—This is the same as the above, inshape; the material is considered morecleanly; it is not liable to corrosion withac
. An introduction to practical pharmacy [microform] : designed as a textbook for the student and as a guide to the physician and pharmaceutist : with many formulas and prescriptions . Fig. 106. Fig. 107. Tin displacer, with upper and lower diaphragm. phragm is made to rest, as in the French coffee-pot and in the air-tight displacer, Fig. Ill; the object of this is to allow the passageof air from the lower or receiving vessel into the top of thecylinder. The Queensware Displacer.—This is the same as the above, inshape; the material is considered morecleanly; it is not liable to corrosion withacid liquids, nor to impart a black colorand metallic taste to solutions of the vege-table astringents. The Common Funnel.—This may be em-ployed for displacement, by inserting aplug of carded cotton, or of fine spongeinto the neck, and by using a piece of per-forated paper, or some thin cotton cloth,or other fabric for the upper diaphragm. Lamp-Chimney Displacers.—No form ofapparatus is so cheap and convenient forsmall operations as ordinary lamp-chim-neys, either plain (Fig. 108) or with bulb (Fig. 109). The smallerend of the chimney is filled with a cork cut so as to all
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Keywords: ., bookcentury1800, bookdecade1850, booksubjectpharmacy, bookyear185
