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 === Pollen preparation ===
-Pollen was prepared by staining with fuchsin solution and embedding in Kaiser glycerin gelatin. Beginning with slide 09-100 I use the prestained (0.014% fuchsin, Kaise) glycerol jelly. Melting of the gelatin by means of a USB Cup Warmer Pearl, Model 834. The coverslip was then sealed with nail polish. Degreasing of the pollen with a few drops of ether and subsequent aspiration of the liquid with filter paper.
+Pollen was prepared by staining with fuchsin solution and embedding in Kaiser glycerin gelatin. Beginning with slide 09-100 I use the prestained (0.007% fuchsin, Kaise) glycerol jelly. Melting of the gelatin by means of a USB Cup Warmer Pearl, Model 834. The coverslip was then sealed with nail polish. Degreasing of the pollen with a few drops of ether and subsequent aspiration of the liquid with filter paper.
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 [[File:Tassenwärmer.jpg|200px]]