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Sophie Rabitsch, Antonia Malissa, Katharina Uhlir, Martina Griesser, Christa Hofmann 193
arated fibres out of three different areas of the glass slide, respectively, were analysed and
documented photographically.
An exemplary comparison of the fibre morphologies which could be observed for the
reference parchment NP most frequently after 13 days of accelerated ageing is given in
figure 37. The majority of fibres which were present in all fibre samples of this type of
parchment appeared to be damaged, mostly in form of “flat fibres” (Fig. 37 d), “pearls on
a string” and “bundles” (Fig. 37 b and c) as well as in a transition state from “pearls on a
string” to “bundles” (Fig. 37 a). Due to the fact that the fibre morphologies observed are
the direct initial stages to partly and completely gelatinised fibres, they indicate an ad-
vanced degradation of the collagen structure65.
In contrary to the samples of the reference parchment NP, much thinner fibres were
present in the samples of the reference parchment LP, which was produced according
to Late Antique methods. Due to that, the observation of the fibre morphologies was
more complicated. Furthermore, the samples of the parchment type LP showed a smaller
amount of damaged fibres. The fibre morphology that could be observed most frequently
was “pearls on a string” (Fig. 38).
65 Axelsson et al., 2016, pp. 46–57.
Fig. 37: HIROX images (taken at 150x magnification, scale bar 500 µm) of the most frequently ob-
served fibre morphologies of reference parchment NP after 13 days of artificial ageing.
Open-Access-Publikation im Sinne der CC-Lizenz BY 4.0
The Vienna Genesis
Material analysis and conservation of a Late Antique illuminated manuscript on purple parchment
- Title
- The Vienna Genesis
- Subtitle
- Material analysis and conservation of a Late Antique illuminated manuscript on purple parchment
- Editor
- Christa Hofmann
- Publisher
- Böhlau Verlag
- Location
- Wien
- Date
- 2020
- Language
- English
- License
- CC BY 4.0
- ISBN
- 978-3-205-21058-0
- Size
- 17.3 x 24.5 cm
- Pages
- 348