1961 1961. Andy Knight: Existences à liquider/ Editions du Champ-de-Mars Collection Cristal 21 1961 . Andy Knight: Existences à liquider/ Editions du Champ-de-Mars Collection Cristal 21 1961
Bon état
1985 1985. Fiction N°363: Damon Knight-Rivka Jacobs-Edward Briant/ Opta Juin 1985
Très bon état
Editions Harlequin 1986 1986. 2 Alicia Knight: Carnaval Crescendo / Harlequin 1986
Très bon état
1961 1961. Andy Knight - Existences à liquider / Éditions du Champ-de-Mars 1961
1987 1987. Anna Knight : La malédection des Winsley /Fleuvre Noir 1987 LBN26
Bon état
1955 1955. Kathleen Moore Knight - Rendez vous sur les cimes / Le Masque 1955
Bon état
1959 1959. Kathleen Moore Knight - Qui a éteint le gaz ?/ Le Masque 1959
Etat correct
1997 1997. Eric Knight - Lassie Chien Fidèle / Ma Première Bibliothèque 1997
Bon état
"KNIGHT, THOMAS ANDREW. - INTRODUCING GEOTROPISM IN PLANT GROWTH.
Reference : 46062
(1806)
(London, W. Bulmer and Co., 1806). 4to. No wrappers as extracted from ""Philosophical Transactions"" 1806. Pp. 99-108.
First apperance of a milestone paper in plant physiology as the concept of tropistic behaviour arose from the experiments described in this paper. Knight showed that forces, generated by means of a water-wheel, made roots and shoots of seedlings orient themselves to centrifugal forces, just as they do to gravity.Knight's investigations on geotropism ""enabled Knight to distinguish between geotropic and hydrotropic reactions of the root, and opened the whole question of tropic responses, of their physical basis and adaptive significance in the lfe of plants.""(Morton, ""History of Botanical Science"", p. 390.).""His most famous work was on what are now called geotropisms. In a letter read by Banks to the Royal Society in 1806, Knight described how he eliminated the influence of gravitation on germinating seeds: He attached them at various angles to the rim of a vertical wheel which was driven by a stream in his garden to revolve continuously at a rate of 150 r.p.m. As the germinating plants grew, each shoot was directed to the center of the wheel" when a shoot passed the center of the wheel its tip turned back so that growth was still centripetal" the roots grew away from the center. Next he set up a similar structure with the wheel horizontal and rotating at 250 r.p.m. so that the seedlings were influenced by both gravitation of the earth an the centrifugal force. In this case, growth was at an angle of 80° to the vertical, the shoot upward and inward, and the root downward and out. Reducing the rotation to 80 r.p.m. decreased the centrifugal force to such an extent that the plants grew at an angle of 45° to the vertical.""(DSB).
"KNIGHT, THOMAS ANDREW. - INTRODUCING GEOTROPISM IN PLANT GROWTH.
Reference : 46390
(1806)
(London, W. Bulmer and Co., 1806). 4to. No wrappers as extracted from ""Philosophical Transactions"" 1806. With titlepage to 1806, Part I. Pp. 99-108. With a stamp on verso of titlepage.
First apperance of a milestone paper in plant physiology as the concept of tropistic behaviour arose from the experiments described in this paper. Knight showed that forces, generated by means of a water-wheel, made roots and shoots of seedlings orient themselves to centrifugal forces, just as they do to gravity.Knight's investigations on geotropism ""enabled Knight to distinguish between geotropic and hydrotropic reactions of the root, and opened the whole question of tropic responses, of their physical basis and adaptive significance in the lfe of plants.""(Morton, ""History of Botanical Science"", p. 390.).""His most famous work was on what are now called geotropisms. In a letter read by Banks to the Royal Society in 1806, Knight described how he eliminated the influence of gravitation on germinating seeds: He attached them at various angles to the rim of a vertical wheel which was driven by a stream in his garden to revolve continuously at a rate of 150 r.p.m. As the germinating plants grew, each shoot was directed to the center of the wheel" when a shoot passed the center of the wheel its tip turned back so that growth was still centripetal" the roots grew away from the center. Next he set up a similar structure with the wheel horizontal and rotating at 250 r.p.m. so that the seedlings were influenced by both gravitation of the earth an the centrifugal force. In this case, growth was at an angle of 80° to the vertical, the shoot upward and inward, and the root downward and out. Reducing the rotation to 80 r.p.m. decreased the centrifugal force to such an extent that the plants grew at an angle of 45° to the vertical.""(DSB).
COLLECTION HARLEQUIN EDITION SPECIALE 2 N° 73 1986 1986. unknown_binding.
Bon état
Eric Knight Akos Szabo Janine de Villebonne
Reference : 500154228
ISBN : 9782253027713
Cliver Al Siani Sabrina Knight Anouchka-Shirley Mathot Olivier Mayans Antonio Romay Lina Stanford Pamela Franco Jess
Reference : 500123068
(2004)
ISBN : 3760061536319
LTA 2016 144 pages 19x1 6x24 6cm. 2016. Relié. 144 pages.
Très bon état
LTA 2016 144 pages 19x1 6x24 6cm. 2016. Relié. 144 pages.
Très bon état
LTA 2016 144 pages 19x1 6x24 6cm. 2016. Relié. 144 pages.
Très bon état
LTA 2016 144 pages 19x1 6x24 6cm. 2016. Relié. 144 pages.
Très bon état - légères marques de lecture et/ou de stockage mais du reste en très bon état- expédié soigneusement depuis la France
PYGMALION 2010 336 pages 15 2x2 6x23 8cm. 2010. Broché. 336 pages.
Très bon état - légères marques de lecture et/ou de stockage mais du reste en très bon état- expédié soigneusement depuis la France
2021 395 pages 2021. 395 pages.
Très bon état - L'ouvrage qui n'a jamais été lu peut présenter de légères traces de stockage mais est du reste en très bon état. envoi rapide et soigné dans un emballage adapté depuis France