Daniel Carter Beard,
Boat-Building and Boating
“ It is impracticable to give dimensions, for the reason that they are relative; the length of the middle log depends, to some extent, upon its diameter, it being evident that a thick log will support more than a thin one of the same length; consequently if your log is of small diameter, it must be longer, in order to support your weight, than will be necessary for a thicker piece of timber. The point to remember is to select a log which will support you and your pack, and then attach two side floats to balance your craft and prevent it from rolling over and dumping its load in the water. ”
