Kenneth Spencer Research Library

The Kenneth Spencer Research Library holds a rare 14th century Korean Buddhist sutra (MS D23) titled, Dae Bangwangbul Hwaeomgyeong (The Sutra of Garland Flower of Great Square and Broad World of Buddha). The sutra is the 45th volume of the eightieth version of the Avatamsaka Sutra translated by Siksananda between 695 and 699 in the Tang dynasty (Eung-Chon Choi, 2003). It is mounted in accordion book format, a practice commonly seen in China, Japan, and Korea (Hsin-Chen Tsai, 2017).

The sutra’s structure consists of papers with a width of 101 cm and height of 26.7 cm that are joined by one seam every nine pages with a starch-based adhesive[1]. The sutra has sixty-one pages of text comprising three chapters, and four pages on which is painted the frontispiece. The calligraphy and frontispiece are hand-painted in a metallic media, likely gold, where gold pigment is typically mixed with animal glue as the binding media (Hsin-Chem Tsai, 2017). The outer edges of the text block are also decorated in gold. The heads, chest, and hands of the three Buddhas in the frontispiece are further enhanced with cream, red, blue, and black opaque paint. The verso of the sutra is blank except for inscriptions along the seam of each join labeling each section.

There are four different papers observed throughout the sutra. The text block of the sutra is a double layer of dark blue dyed paper, likely indigo, that is highly burnished. The paper used on the verso of the frontispiece, back cover, and adjacent pages is a different laminated indigo paper. It is not burnished, and the indigo has prominent brush strokes (see Image 2). The paper cover has a white paper core consisting of a few sheets laminated together and is covered with a thin, blue paper. The front cover is decorated with flakes of gold leaf while the back blue paper cover is blank. Fiber identification characterized the furnish (fiber content) of these papers as a paper mulberry or a paper mulberry mixture with either mitsumata or gampi. These fibers are consistent with the known furnish of papers from this period and region.

According to Goryeo dynasty: Korea’s age of enlightenment, 918-1392, the following volumes from this set of Avatamsaka Sutra are extant and share the same style of calligraphy, treatment of the frontispiece, and cover design: Vol. 1 (private collection in Japan), Vol. 4 (Tokugawa Art Museum), Vols. 35 and 36 (Yamato Bunkakan), Vol. 42 (Tsaian-ji, Kobe), and Vol. 78 (The Cleveland Museum of Art). 

The sutra had several structural issues (weak folds, insect damage, old mends that were detaching) and was a priority for examination and treatment to stabilize it for future use. With great thanks to the Andrew W. Mellon Foundation and its support of a Collaborative Conservation Initiative at KU, there was allocated funding to host a visiting conservator to complete a special week-long project during the grant period. We reached out to Minah Song, a conservator in private practice in the Washington D.C. area, to advise on the development of a treatment plan for this rare object. Read more about Minah’s entire Visiting Conservator Project in the blog post written by Special Collections Conservator, Angela Andres.

After the sutra was examined and the condition issues prioritized, we shared our observations and treatment plan with Elspeth Healey, special collections librarian, who authorized the treatment. Our plan included addressing all necessary mending needs first. If we could tone a good matching paper, then we would also address the most visually distracting mends and overlays to reintegrate the paper margins of the sutra. We toned handmade Korean paper (hanji) using High Flow Golden acrylic paint (indigo/anthraquinone) and Dr. Ph. Martin’s Synchromatic Transparent watercolor (black) diluted with deionized water to mix various blue tones and achieve a good match with the sutra’s burnished indigo paper. The mixture was brush-applied to the hanji and the paper was hung to dry completely.

Once the paper was toned, we removed old mends across worm holes that were loose and detaching. We used the new mending paper to reinforce weak fold creases and replace old mends, as needed, and reattached the seams that were coming loose. The treatment overall was kept as minimal as possible with the primary goal of stabilization so that the sutra could be safely handled. Once the new mends and infills were attached with wheat starch paste, some were locally inpainted with Schminke watercolors to match the sutra’s paper tone more closely.

The conservation treatment of the sutra is now complete. The new mends have better visual integration with the object and allow for the sutra to be safely handled. We would like to extend our sincere thanks to Minah Song for her guidance and expertise on this important project. We would also like to thank Dr. Brian Atkinson, Assistant Professor in the Department of Ecology and Evolutionary Biology and Curator of the Division of Paleobotany at the Biodiversity Institute for the use of his microscope to complete fiber identification. Finally, we would like to thank the Andrew W. Mellon Foundation for enabling this collaboration.

[1] The final section is only five pages long, including the cover, and is 55.8 cm wide. Adhesive was tested with an iodine indicator. The adhesive is likely wheat or rice starch paste.

REFERENCES

Avatamsaka Sutra No. 78. The Cleveland Museum of Art. Collection Entry. https://www.clevelandart.org/art/1994.25.

Baker, Whitney. June 18, 2003. Condition Examination. The Kenneth Spencer Research Library. The University of Kansas Libraries.

Choi, Eung-Chon, and Kumja Paik Kim. 2003. Goryeo dynasty: Korea’s age of enlightenment, 918-1392 ; [in conjunction with the Exhibition Goryeo Dynasty: Korea’s Age of Enlightenment, 918-1392, which was organized by the Asian Art Museum – Chong-Moon Lee Center for Asian Art and Culture, San Francisco, October 18, 2003 through January 11, 2004]. San Francisco, Calif: Asian Art Museum: 126-7.

Tsai, Hsin-Chen, and Tanya Uyeda. 2017. “Line Up, Back to Back: Restoration of a Korean Buddhist Sutra in Accordion Book Format.” Book and Paper Group Annual 36: 75–83.

Zapolote, also known as The Goose Woman is one of nine known lithographs by Kansas artist Mary Huntoon. Based on Huntoon’s notations, we know that this single edition print was made in 1923 while she attended the Art Students League in New York, NY. Zapolote is a mysterious image depicting the silhouette of a seated woman contrasted by a bright full moon surrounded by dark clouds. Huntoon used broad, arching lines to hint at the woman’s surroundings, which are generally abstract, and allude to a rippling pool at her feet. 

This work is part of a large collection of prints, drawings, and watercolors by Huntoon at the Kenneth Spencer Research Library. Along with the Huntoon collection at the Helen Foresman Spencer Museum of Art, this collective holding at KU is regionally significant, connecting KU to other regional and national collections (e.g., Alice C. Sabatini Gallery in Topeka, Kansas; Mulvane Art Museum at Washburn University in Topeka, Kansas; and the Philadelphia Museum of Art).

I prioritized this print for conservation treatment during a condition survey of Huntoon’s collection of works because the print had sustained significant pest damage (see images 1-2). The entire upper right corner was lost as well as a few other smaller areas across the top edge. Tiny bite marks were visible along the edges and a long strip of the remaining top edge of the sheet was at risk of tearing off during handling.  

Conservators use several techniques for filling paper that is lost. The most common approach is to attach a new piece of paper with a similar thickness, color, and texture that is cut to fit inside the loss like a puzzle piece. The downside to this approach is that the search (and creation) of such a fill is often time-intensive. Even when the edge of the fill is beveled or butt-joined, a small seam is usually visible. The rough and jagged edges created by the hungry pest along this particular loss further complicated the shaping and stabilization process.

I had an opportunity, however, to use a simpler approach that would help stabilize the jagged edges and save time searching for the perfect fill paper: pulp fills. Pulp fills are a great method for filling paper because unlike the method described above, there is a much smoother transition between the original sheet and the fill. In this technique, wet paper pulp is dropped into the area of loss as a slurry, and can be built up to the same thickness as the print. This type of filling method can only be done if the entire print can be washed in advance because the print needs to be wet during this process. Fortunately, my testing confirmed that this print would be safe to wash.  

Next, I consulted my small collection of pre-cast paper pulp, all from high quality papers that had been previously washed. I selected two different colored paper pulps to mix together to make the best possible color match (see image 3). Then the pulp was reconstituted into a slurry with water and mixed thoroughly (see image 4).

After the pulp was ready, I used a pipette to drop small amounts into the area of loss. This was completed on a light table so I could match the thickness of the pulp with the thickness of the paper. I used a vegetable scrubber and curved tweezers to tamp down and shape the pulp into a smooth mat. A sheet of cotton blotter and clear polyester sheeting was also used to control the amount of water in the pulp slurry and anchor and cast the pulp. In about thirty minutes, I had already filled the entire upper right loss (see images 5a-c).

Once all the fills were completed, I dried the print between cotton blotters under moderate weight. After the print was fully dry, I assessed the pulp fill. Since the loss was in an area that would be used to attach it for display and/or handling, I decided to reinforce it with a very thin piece of Japanese paper, called tengucho. This would add extra strength to the area, but not change its visual effect. Finally, the edges of the pulp fill were toned slightly with graphite pencil and colored pencils to match the color of the rest of the sheet. Now that the treatment is finished, the pulp fills help to complete the print and bring the viewer’s eye back to the image area and away from the damage. 

Zapolote will be on view this fall 2021 at the Kenneth Spencer Research Library for the exhibit, Mary Huntoon: Artist and Art Therapist, and will feature several more examples of conservation treatments in this collection. We look forward to seeing you there!

Jacinta Johnson
Associate Conservator, Mellon Initiative

In the first installment of this two part blog series, the Kansas artist, Mary Huntoon, was introduced. We shared how her print, Kansas City, Kansas Grain Elevators, was prepared for an overall washing treatment in order to reduce several dark brown stains along the top edge that interrupted the image area and created bulging in the surface.

Before any washing treatments are performed on works on paper, all media are tested with the proposed washing solutions to ensure their stability. The surface is also checked for any areas where the print may have been previously restored, or even re-touched by the artist with another material that might be water-soluble. I carefully examined the print under magnification during testing in order to make sure the ink and paper were safe for washing. Everything checked out, so I was ready to start the washing step.

Prior to washing, the print was gently surface-cleaned and the brown paper attachments were removed. You can read more about these steps in the first blog post about this treatment.

Before a work on paper is placed into a bath, the entire object must slowly undergo a humidification step. This helps to relax the paper and the media and prevents aggressive swelling. Then the object is gently sprayed with deionized water using a fine mist attachment in order to fully saturate it. This step-wise procedure ensures a gentle transition for the object into the bath.    

The print was washed in successive baths of pH-adjusted deionized water and air-dried. I examined the print once again to assess the progress of the washing step. The stains had noticeably lessened, but they were still quite visible, and I decided to test another stain reduction technique.

Using a small brush, I gently introduced very small applications of a dilute reducing bleach to the stained areas. This reduced the stain to an almost undetectable level. Then the bleach was fully rinsed with additional baths of pH-adjusted deionized water. I used an ultraviolet lamp to check to see that all the bleach, which fluoresces under ultraviolet radiation, was rinsed away.

After the stain reduction and overall washing was complete, it was time to address a few structural concerns. Weak creases in the upper corners made the print vulnerable to breakage and tearing, so I reinforced them using Japanese paper applied with wheat starch paste we make in our conservation lab. Instead of cutting the Japanese paper, it is wetted and torn. This torn edge makes use of the long kozo fibers in the paper and creates a strong mend that integrates well into the paper. After all the mends and reinforcements were complete, the print was humidified a second time and flattened between thick felts. Pressing between felts helped to remove planar distortions along the edges, while also maintaining the plate mark of the etching.

Now that the treatment is complete, the print is ready to be returned to the collection where it can be safely examined by visitors to the Kenneth Spencer Research Library.  

The Kenneth Spencer Research Library is home to the collection of papers and original artwork by Kansas artist and art therapist, Mary Huntoon (1896 – 1970). As part of a collaborative initiative between KU Libraries and the Spencer Museum of Art, funded by the Andrew W. Mellon Foundation, many of the prints, drawings, and watercolors by Huntoon will be treated.

Jacinta Johnson, Associate Conservator, Mellon Initiative

Conservation Services recently installed an exhibit in Spencer Library titled Unseen Hands: Care and Preservation of KU Libraries’ Collections. Jointly conceived by all staff members in Conservation Services–Angela Andres, Whitney Baker, Chris Bañuelos, Jacinta Johnson, and Roberta Woodrick–the exhibit highlights the work performed by our department to preserve library collections.

Staff in Conservation Services are responsible for caring for KU Libraries collections in all seven locations. In preserving our books, papers, photographs, audiovisual formats, and three-dimensional artifacts, we strive to make materials available for use by current and future library visitors.

Core functions of Conservation Services include:

• Monitoring the environment
• Constructing protective enclosures
• Preparing new materials for use
• Repairing and treating damaged items
• Digitizing audiovisual formats
• Constructing cradles and supports for exhibitions
• Preparing for and responding to disasters
• Training future preservation professionals
• Engaging in outreach with the campus community and beyond

The display spans five cases, each of which focuses on a different aspect of our work: audiovisual preservation, general collections conservation, paper conservation, preservation measures, and special collections conservation. A digital slideshow and videos of recently digitized Spencer collections augment the case displays.

The exhibit will be on display on the third floor of Spencer Research Library until January 17, 2020. Please visit!

Whitney Baker
Head, Conservation Services