ISBN: 9789061935896 - on the nature of rivers: with case stories of nile, zaire and amazon (10 Ergebnisse)

Soft cover. Zustand: Very Good. No Jacket. 1st Edition. 8vo, 67 pages, black and white photographs, diagrams. Card covers, a very good copy.

67 S. mit zahlreichen Abbildungen, 906193589X Sprache: Englisch Gewicht in Gramm: 150 Groß 8°, Original-Karton (Softcover), Hinterdeckel fleckig und Einband randstaubig, innen sauber.

Zustand: As New. Unread book in perfect condition.

Zustand: New. In English.

Zustand: Good. Your purchase helps support Sri Lankan Children's Charity 'The Rainbow Centre'. Ex-library, so some stamps and wear, but in good overall condition. Our donations to The Rainbow Centre have helped provide an education and a safe haven to hundreds of children who live in appalling conditions.…

Zustand: New.

Hardcover. Zustand: Brand New. 1st edition. 76 pages. 9.50x6.50x0.25 inches. In Stock.

Gebunden. Zustand: New. Origin and Aims of this essay It was not by choice but by the misfortunes or fortunes of the last war, that I became involved with rivers. In December 1946 I obtained a lecturing post at the then Gordon Memorial College at Khartoum and the Principal of the .

Buch. Zustand: Neu. Neuware - Origin and Aims of this essay It was not by choice but by the misfortunes or fortunes of the last war, that I became involved with rivers. In December 1946 I obtained a lecturing post at the then Gordon Memorial College at Khartoum and the Principal of the college brought me to confluence of the two Niles and urged me to 'do something' on the biology of the river. I was very reluctant, my experience was limited to lakes in Poland up to 1939, and I did not know anything about work on rivers. The 'equipment' was a rowing boat, hired, and a 'home made' plankton net. This limited our first exploratory steps to the immediate vicinity of Khartoum. In both the White and Blue Nile we discovered the presence of a pure plankton. This was contrary to opinions expressed in the limited scientific literature available at Khartoum which stimulated our doubts and the search for the origin of this phenomenon. And so, early in our work, we became aware of the longitudinal sequence of events in running water, a fundamental feature of river ecology. of work were daunting; In the Nile, as in other long rivers, the difficulties the water courses stretch for thousands of kilometers south and north of our base, our work had to be done in time free from lecturing duties, no research grants were available.…

Zustand: gut. 1978. On the Nature of Rivers with case stories of Nile, Zaire and Amazon. Essay. In deutscher Sprache. pages.