La polpa e la rivista cartacea del Canada . V P L A N I P I B R M AiiAZI X E Agosto 15, 1013 l'umidità. La sezione è poi trasferito ad olio di origanumfor circa 5 minuti e infine alla slitta. L'olio tracesof sono accuratamente asportati mediante carta assorbente.Lo scopo è sollecitata se desiderato con Haematozylin,montato in balsamo del Canada e coperto. Come abbiamo già accennato il taglio di sezioni ofpaper apre molte interessanti problemi che abbiamo illus-trate da tre esemplari. fig. 1.-Questo rappresenta la sezione trasversale di un pezzodi carta pergamena che mostra come l'azione delcarrello sulfuri

• Collaboratore: The Reading Room / Alamy Foto Stock
• ID dell’immagine: 2AKPRTX
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• Dimensioni: 3091 x 808 px | 26,2 x 6,8 cm | 10,3 x 2,7 inches | 300dpi

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Pulp and paper magazine of Canada . 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 paper.The 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 the action ofthe sulphuricacid has been made to swell the fibres and close up thepores of the paper so that neither air nor moisture canpenetrate. fig. 2.—This is a section of a well-known bulkyantique paper, much in favour for books. It will benoticed that a very large percentage of the volume is the principal importers in order to invoke contracts areoffering inducements in the form of reductions on all pulpimported from Norway, Austria and Germany.. occupied by air space, and it is a simple matter to calculatethe amount of volume actually occupied by the fibre andair respectively. In many book papers of this description60 to 70 per cent, of the volume of a sheet of paper is airspace. fig. 3.—A transverse section of a common news afterprinting. It is well-known that in order to get the ink todry as quickly as possible, ordinary so called driersare added to the ink. As a matter of fact no such actualdrying takes place, but the thinning of the ink causes theoily vehicle to penetrate the paper and thus give a kind ofdrying effect. The penetration of the two sides of the paperby the ink is clearly shown in the section. FAVORED NATION PROTEST. (Special to Pulp and Paper Magazine.) New York, N.Y., August 13, 1913. Arhtur H. Washburn, of the law firm of Comstock andWashburn, No. 12 Broadway, when seen today by yourcorrespondent, stated that in the event the Department ofState, which now has the celebr

Parole chiave associate all'immagine

• bookcentury1900
• bookdecade1900
• booksubjectpaperma
• bookyear1903