The plan, so ingeniously contrived, pleased the fancy of the boys.
"I imagine," said Harry, "this will be the first time people ever carried their fort with them. It will be fun to meet the savages with that kind of an outfit."
"You must not think, however," continued John, "that this is all we shall need. We must take in the wagon sufficient food for the yaks to withstand a siege, so that with our own provisions, guns and ammunition, we shall have a pretty good load."
"How heavy will the three sections of fence weigh?"
"I estimate that, as we shall want the boards made of good wood, the weight will be thirty pounds per cubic foot, and as all the boards will take fourteen cubic feet of lumber, the total weight, including the posts, can be brought within 450 pounds, and I do not think our other material will weigh much over 500 more."
"That would not be a hard load," observed the Professor, "as we have often hauled a ton, but it would be well to make a new set of wheels, and we can then take with us an extra wheel for the front and rear."
"I think we should take tools along also," said Tom, "because we can always make our own repairs, in that event."
"I am glad you referred to that. It is certainly a suggestion in the right direction. Are there any more observations from any of the other army engineers?"
"I may be wrong," answered Harry, "but it seems to me that one of the folding fences should be put on each side of the wagon body, and the third under the wagon."
"What is your reason for that?" asked Tom.