he starch. The longitudinal section should be preparedin the same way. In cutting the longitudinal section care shouldbe taken to cut near the center, so as to have some of the woodycord in the specimen. After these sections have been thoroughlyexamined under the microscope, the powdered ipecac can… … FIG. 3. Potato Starch, x 375. of the powder is to be taken. After protecting it with the thinglass-cover it is ready to be examined. Any one who has takenthese steps, can test for themselves the purity of the powderedipecac found in the drug stores. The following substances are reported as having…
Microscopy
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