Coincident with the demarcation of Russian boundaries in Turkestan was that of northern Afghanistan.
In 1526 he was sent out in command of an expedition fitted out for the purpose of determining by astronomical observations the exact line of demarcation, under the treaty of Tordesillas, between the colonizing spheres of Spain and Portugal, and of conveying settlers to the Moluccas.
The boundary question between Costa Rica and Nicaragua was referred to the arbitration of the president of the United States, who gave his award in 1888, confirming a treaty of 1858; further difficulties arising from the work of demarcation were settled by treaty in 1896.
Note the sharp line of demarcation between the growth and the tissue in which it is growing.
He found the country peopled partly by tribes of Gallo-Celtic, partly by tribes of Germanic stock, the river Rhine forming roughly the line of demarcation between the races.
