They may have been covered in some material which prevented water damage .
The canoe nearly tipped over , the expedition members were trying to balance the boat , but Sacajawea collected all the books , records , and instruments from the journey .
expedition members may have been covered in some material which prevented water damage .
The canoe nearly tipped over , the expedition members were trying to balance the boat , but Sacajawea collected all the books , records , and instruments from the journey .