Pulp and paper magazine of Canada . ut backinto methylated spirit and kept for any length of time. Mounting the Objects. When the objects are merely prepared for temporaryexamination they can be mounted and covered withoutmuch trouhla. Objects Mounted in Gelatine. The gelatine can be soaked away if necessary with alittle hot water from the section as it lies on the glassslip. The fibres can be stained with any aniline dye orwith Herzbergs reagent, and then examined. If a permanentmount is required the gelatine need not be removed, thesection being transferred to methylated spirit, and subse-qu
Pulp and paper magazine of Canada . ut backinto methylated spirit and kept for any length of time. Mounting the Objects. When the objects are merely prepared for temporaryexamination they can be mounted and covered withoutmuch trouhla. Objects Mounted in Gelatine. The gelatine can be soaked away if necessary with alittle hot water from the section as it lies on the glassslip. The fibres can be stained with any aniline dye orwith Herzbergs reagent, and then examined. If a permanentmount is required the gelatine need not be removed, thesection being transferred to methylated spirit, and subse-quently into oil of cloves for 5 minutes. The section isthen removed from the oil of cloves and put on a means of a piece of blotting paper the oil is drained offas far as possible, a drop or two of Canada Balsam is addedto the specimen, and a cover glass put over it. It maybe mentioned that Herzbergs reagent does not give apermanent staining to the specimen. Haematoxylin isprobably the best permanent stain for this Objects Mounted in Celloidin. The section after cutting is placed in a small dishcontaining methylated spirit, and then transferred tostrong alcohol in another dish for not more than 2minutes. Celloidin is solluble in alcohol, but since it takesabout 4 minutes to act on the celloidin, the object canbe safely left in the strong alcohol for 2 minutes in orderto complete the dehydration and toremove any traces of 580 P V L P A N I) P A I B R M AiiAZI X E August 15, 1013 moisture. The section is then transferred to oil of origanumfor about 5 minutes, and finally to the slide. The tracesof oil are removed carefully by means of blotting object is strained if desired with Haematozylin,mounted in Canada Balsam, and covered. As we have already hinted, the cutting of sections ofpaper opens up many interesting problems which we illus-trate by three specimens. fig. 1.—This represents the transverse section of a pieceof parchment paper showing how th
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectpaperma, bookyear1903
