CONCLUSION. 217 
s feasible, considering the long distance and the inaccessible 
eharacter of the river-banks. 
9. No other satisfactory method of exploration, except 
along the course of the river, could be adopted to determine 
its actual course and peculiar natural features; and James 
White, as the pioneer of this enterprise, will probably long 
retain the honour of being the only man who has traversed, 
through its whole course, the Great Cafion of the Colorado, 
and lived to recount his observations on so perilous a trip. 
