TABLE 1.

Gallegos River to Coy Inlet (partly angular partly estimation) 350
South Side of Santa Cruz (angular and barometric) 355
North Side of Santa Cruz (angular and barometric) 330
Bird Island, plain opposite to (angular) 350
Port Desire, plain extending far along coast (barometric) 330
St. George's Bay, north promontory (angular) 330
Table Land, south of New Bay (angular) 350

A plain, varying from 245 to 255 feet, seems to extend with much uniformity
from Port Desire to the north of St. George's Bay, a distance of 170 miles;
and some approximate measurements (in feet), also given in Table 2 below,
indicate the much greater extension of 780 miles:--

TABLE 2.

Coy Inlet, south of (partly angular and partly estimation) 200 to 300
Port Desire (barometric) 245 to 255
C. Blanco (angular) 250
North Promontory of St. George's Bay (angular) 250
South of New Bay (angular) 200 to 220
North of S. Josef (estimation) 200 to 300
Plain of Rio Negro (angular) 200 to 220
Bahia Blanca (estimation) 200 to 300

The extension, moreover, of the 560 to 580, and of the 80 to 100 feet,
plains is remarkable, though somewhat less obvious than in the former
cases. Bearing in mind that I have not picked these measurements out of a
series, but have used all those which represented the edges of plains, I