apworlduhs.weebly.comapworlduhs.weebly.com/uploads/2/0/3/6/20366905/doc... · balsa raft and in a...
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apworlduhs.weebly.comapworlduhs.weebly.com/uploads/2/0/3/6/20366905/doc... · balsa raft and in a rowboat. But both were unsuitable for reliable, regular crossings, especially with