Books in humid conditions

Does anybody know what to use to stop brownish spots appearing on
books stored on open shelving in hot humid climates located near the
sea.

Eur. Ing. Dr. Colin L Leci
Icel Developments Ltd

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                  Conservation DistList Instance 13:26
                Distributed: Wednesday, October 20, 1999
                       Message Id: cdl-13-26-014
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