Studies on Han Wooden Strips Found at Ju-yan in 1973-74

主要的问题是如何保存出土的木条或竹条。我们在挖掘中发现了两种情况，一种是在干燥的情况下发现的，另一种是在潮湿的情况下发现的。在潮湿的情况下发现的，有很多样本，例如，在奈良的平代，或者在日本的许多其他地方。在中国的湖北省，几乎所有的坟墓都是用地下水填满的，用水来保护埋葬物，防止腐烂。在这种情况下，我们需要保持潮湿的状态，让它慢慢变干。在英国文多兰达罗马遗址发现的文多兰达书写板，需要两年的干燥时间，奥巴在大英博物馆了解到这一点。在奈良国立文物研究所，他们将许多木条保存在冷冻室内。另一方面，在干燥地区发现的材料，木条和竹条被完全干燥，然后在大英图书馆，它们被保存在自然条件下的储藏室。在台北，他们只把它们放在空调房间里。不知几十年后，也许表面会变暗。最好的办法是涂上塑料薄膜。但最大的问题是几千条的成本非常昂贵。我们需要研究一下这个问题。

The major problem is how to preserve excavated wooden or bamboo strips. We have two cases in the excavations, one is those strips found under dry condition, and the other found under wet situation. The case found under wet, there are very many samples, for instance, in Heijyokyo in Nara, or many other sites in Japan. In China, almost tombs in Hubei Province, are filled with subterranean water, and the interments guarded by water against decomposition. In this case, we need to keep wet condition and make it to be dried slowly.The Vindolanda writing tablets found at Vindolanda Roman site in England, it takes two years to be dried, Oba have learned it at British Museum. In Nara National Institute of Cultural Relics, they keep the many wooden strips in the freezing room.On opposite side, the materials found in the dry area, wooden and bamboo strips are completely dried, then for example in the British Library, they are kept in natural condition of the stock room. In Taipei, they keep them under air conditioned room only. I wonder after several ten years, perhaps the surface will change dark. The best way will be coated by plastic film. But most problem is it cost very expensive for several thousand strips. We need to study on this problem.