Surveys were also made along the Indian coasts.
The cadastral surveys in Canada are carried on by a commission of Crown-lands in the old provinces and by a Dominion land office, which lays out townships as in the United States, but with greater accuracy.
In the Rocky Mountains surveys photographic apparatus is successfully employed.
Since that time, however, valuable maps have been published by an Oficina de mensura de tierras, by a seccion de geografia y minas connected with the department of public works, by the Oficina hidrografica, and more especially in connexion with surveys necessitated by the boundary disputes with Argentina, which were settled by arbitration in 1899 and 1902.
It need hardly be said that hydrographic surveys have been of great service to compilers of maps.
