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The E-Sylum: Volume 4, Number 12, March 18, 2001, Article 11


Joel Orosz writes;

"In answer to the question from Adrian Gonzalez, back when I was in graduate school, studying to be a museum curator, the optimal conditions for book storage were considered to be a constant environment of 65 degrees Fahrenheit, with a relative humidity of 50%. If the humidity is lower than 45%, books dry out, if it is higher than 55%, mold and mildew begin to grow on the paper.

I'm not well versed with the best current recommendations for killing bookworms and silverfish. In the old days, we used to encase books in boxes suffused with a high concentration of thymol, and leave them there for a week. This killed mold, mildew, bookworms and silverfish that were inside of the book. On the down side, if used carelessly, thymol could also kill the librarian!

It was also necessary, of course, to fumigate the entire library room itself, since silverfish could be lurking outside of the books. It would probably make sense to consult a professional exterminator to see what pesticide is currently considered most effective against silverfish."

Bob Knepper writes:

"In E-Sylum, Vol. 4, No. 11, Joel Orosz comments about the bad effects of sunlight on books. To try to minimize fading of carpets and furniture, I experimented with UV filter glass and films for windows. They yield some improvement - but only a little. Thus the solution given of blocking all sunlight is still valid."

Wayne Homren, Editor

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