 Then, as population increased, and commerce and industry grew, as naval and military forces developed, and as larger political aggregations began to supersede the smaller units, natural boundaries were found no longer to suffice. It became necessary to...  Frontiers - Page 13by George Nathaniel Curzon Marquis of Curzon - 1907 - 58 pagesFull view - About this book
 | Marquess George Nathaniel Curzon Curzon of Kedleston - 1908 - 70 pages
...as population increased, and commerce and industry grew, as naval and military forces developed, amd as larger political aggregations began to supersede...and war. Natural Frontiers. Here, however, I must pausr- to define the factors and to indicate with greater precision the various classes of Frontiers... | |
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