File:The Gardeners' chronicle - a weekly illustrated journal of horticulture and allied subjects (1891) (14779984752).jpg

Identifier: gardenerschronic310lond (find matches)
Title: The Gardeners' chronicle : a weekly illustrated journal of horticulture and allied subjects
Year: 1874 (1870s)
Authors:
Subjects: Ornamental horticulture Horticulture Plants, Ornamental Gardening
Publisher: London : (Gardeners Chronicle)
Contributing Library: UMass Amherst Libraries
Digitizing Sponsor: Boston Library Consortium Member Libraries

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
d, bluntish, glandular,straight-edged, as seen from the side. The conesare (in herbarium specimens) on short stalks,globose, about half an inch in diameter; the scalesconvex, with a prominent umbo or boas. The treeis perfectly hardy at Kew and Combe Wood, evenafter the last winter, a point again in which it differsmaterially from most or all the Mexican Cypresses.When shown at a recent meeting of the RoyalHorticultural Society by Messrs. Veitch, it wasdeservedly awarded a First-class Certificate. M. T. M. THE MOVEMENTS, SECEETION,AND STRUCTURE OF DION^EAMUSCIPULA.At the recent meeting of the American Associa-tion for the Advancement of Science, Dr. J. M.Macfarlane made a communication on the above, ofwhich the following is a brief summary of results,obligingly communicated to us by the author. Hehad noticed several years ago that two toucheswere necessary under ordinary conditions to causeclosure of the leaf, and on more careful experiment (The Gardeners Chronicle, September 26, 1891.
Text Appearing After Image:
FlQ. 42.—CABNIVOKOUS PLANTS. GROUP OF DBOSEBAS : SUNDEWS. (sEB LEADEB.)A, Drcwra dichotoma; B, Drosera capensia; C. Dro:era epathnJaj; D. Droaophyllum lusitanicum. 366 THE GA BDENEB S CUB ONICLE. (September 26, 1891. since, he found that whether one only of the sixirritable hairs was touched twice gently or strongly,or whether two were each once touched, the sameresult occurred. He then tried to ascertain how longinfluence of the first of the two stimuli would beretained by the protoplasm of the leaf-cells, andfound that sharp memory-power, if it may be socalled, was exhibited for fifteen seconds, that duringthe next forty seconds it became greatly weaker, andrecollection of the first stimulus was greatly lost insixty to seventy seconds. He showed the relation ofthis to Burdon Sandersons and Pages results, andpointed out that the period between the two stimuliexactly corresponded to that latent period ofmuscular contraction in animals, though extendedover a greatly longer space of t

Note About Images