Sign In | Register
No image available

Pflanzenphysiologie: Versuche und Beobachtungen an höheren und niederen Pflanzen einschließlich Bakteriologie und Hydrobiologie mit Planktonkunde

by Kolkwitz, R. [ Richard ]

Condition: Good

Jena: Gustav Fischer, 1922. Second Edition. Boards. Good. Second Edition. 304 pages plus ads. Brown paper covered boards. Bookplate of Dr. Siegwart Hermann on front pastedown with his stamp at head of title page. Also sticker of Prof. Dr. phil. Kolkwitz next to his name on title page. A few pages with corner creases. Small tear to spine panel lower portion and number inked on spine. Still a sound copy. Text in German. Mit 12 zum Teil farbigen und 153 Abbildungen im Text. (With 12 partly colored and 153 illustrations in the text.). Boards. "Kolkwitz is known for work with Maximilian Marsson (1845-1909) in the development of the "saprobic system" as a biological determination of water quality and levels of organic waste (pollution) in rivers and streams. Their methodology was a non-chemical analysis that was based on patterns of abundance and distribution of various biological species. They examined the biological patterns of approximately 800 species of water plants and invertebrates in their studies, and produced a saprobic index of four zones defining levels of water quality. The term "polysaprobic" was used for river environments with a large amount of decaying organic matter; "oligosaprobic" described locations with the least amount of organic waste, while alpha- and beta-"mesosaprobic" defined moderately polluted habitats. Later, this index was expanded into nine zones, with "xenosaprobic" being the least polluted and poly-saprobic" having the highest level of waste." (wikipedia) Title translates to: "Plant Physiology: experiments and observations of higher and lower plants including bacteriology and Hydrobiology with plankton customer."


Review this book (Want a chance to win $50? Log-in or create an account first!) (You'll be automatically entered for a chance to win $50!)


Some terminology that may be used in this description includes:
title page
A page at the front of a book which may contain the title of the book, any subtitles, the authors, contributors, editors, the pu...[more]
The outer portion of a book which covers the actual binding. The spine usually faces outward when a book is placed on a shelf. A...[more]
Highly sought after by some collectors, a book plate is an inscribed or decorative device that identifies the owner, or former o...[more]


$4.99 shipping to USA

More shipping options >

Add to wishlist

Banned and Frequently Challenged Books

Collecting Banned & Challenged Books

Build a revolutionary library of literature that has been challenged or even outright banned. You'll be surprised by some of the titles in this gallery!

Vintage Valentine's Day Cards

Collecting Vintage Valentine's Day Cards

Exchanging Valentines can be an awkward process, especially when you consider "Vinegar Valentines" and other snarky sentiments - whatever your tastes, enjoy the sweet and sour cards alike in this gallery!