Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Books Books
" Ennis, a resident in New Zealand. The English water-cress grows so luxuriantly in that country as to completely choke up the rivers, sometimes leading to disastrous floods, and necessitating great outlay to keep the stream open. But a natural remedy has... "
The Naturalisation of Animals & Plants in New Zealand - Page 370
by George Malcolm Thomson - 1922 - 607 pages
Full view - About this book

Nature Versus Natural Selection: An Essay on Organic Evolution

Charles Clement Coe - 1895 - 648 pages
...displacing the English watercress from the rivers of New Zealand by a very simple and intelligible process. "The roots of these trees penetrate the bed of the...requisite amount of nourishment, gradually disappears."* In these cases there is no abstract survival of the fittest: both are equally fit apart from one another....
Full view - About this book

Darwinism: An Exposition of the Theory of Natural Selection with Some of Its ...

Alfred Russel Wallace - 1901 - 542 pages
...and necessitating great outlay to keep the stream open. But a natural remedy has now been found in planting willows on the banks. The roots of these...requisite amount of nourishment, gradually disappears. Increase of Organisms in a Geometrical Ratio. The facts which have now been adduced, sufficiently prove...
Full view - About this book

Darwinism: An Exposition of the Theory of Natural Selection ..., Volumes 1-2

Alfred Russel Wallace - 1889 - 523 pages
...and necessitating great outlay to keep the stream open. But a natural remedy has now been found in planting willows on the banks. The roots of these...requisite amount of nourishment, gradually disappears. Increase of Organisms in a Geometrical Eatio. The facts which have now been adduced, sufficiently prove...
Full view - About this book

The Naturalisation of Animals and Plants in New Zealand

George Malcolm Thomson (M.L.C., F.L.S., F.N.Z.Inst.) - 1922 - 626 pages
...(Fl., Oct. to March.) 1 Kirk reported Matthiola sinuata, Br. as growing at Castle Rock in 1887. TNZ 24 It is frequently found to be very much infested...it; and I have noticed in some parts of the Avon at Christchurch, and in tributary streams, that a species of Nitella can strangle both of them. But watching...
Limited preview - About this book




  1. My library
  2. Help
  3. Advanced Book Search
  4. Download EPUB
  5. Download PDF