Ebook: Influences of Geographic Environment Volume 1

Influences of Geographic Environment Volume 1 By Ellen Churchill Semple Rivers as intermediaries between land and sea--Sea navigation merges into river navigation--Historical importance of seas and oceans influenced by their debouching streams--Lack of coast articulations supplied by rivers--River highways as basis of commercial preëminence--Importance of rivers in large countries--Rivers as highways of expansion--Determinants of routes in arid or semi-arid lands