Какво казват хората - Напишете рецензия
Не намерихме рецензии на обичайните места.
Други издания - Преглед на всички
American appears ASA GRAY base become botanical botanists branches broad called carpel cells changes characters closely collected color common complete contains covered described distinct distributed entire examined experiments fact feet figure flora flowers forms fruit fungi GAZETTE genera genus give given Gray ground growing growth half illustrated inches insects interest intervals Journal known lateral leaf leaves length less light lines living material method mycelium natural nearly North notes oblong observations obtained oil-ducts organs original parasites plants PLATE pollen pollinia present probably produced Prof published question recently referred regarded ribs roots seed seems seen short side single species specimens stems structure surface thick tion trees true University upper usually vegetable
Страница 43 - SEC. 2. That it shall be the object and duty of said experiment stations to conduct original researches or verify experiments on the physiology of plants and animals, the diseases to which they are severally subject, with the remedies for the same; the chemical composition of useful plants at their different stages of growth; the comparative advantages of rotative cropping as pursued under a varying series of crops; the capacity of new plants or trees for acclimation; the analysis of soils and water;...
Страница 43 - ... comparative effects on crops of different kinds ; the adaptation and value of grasses and forage plants ; the composition and digestibility of the different kinds of food for domestic animals: the scientific and economic questions involved in the production...
Страница 195 - Courier, and at the time of his death he held the position of botanist to the department of agriculture of South Carolina. He was an honorary member of a number of scientific societies of this country and Europe, and in 1886 the degree of LL.
Страница 43 - ... the analysis of soils and water; the chemical composition of manures, natural or artificial, with experiments designed to test their comparative effects on crops of different kinds; the adaptation and value of grasses and forage plants; the composition and digestibility of the different kinds of food for domestic animals; the scientific and economic questions involved in the production of butter and cheese; and such other researches...
Страница 20 - Hants as Sanitary Agents; or, the relation of growing vegetation to health and disease, comprising also a consideration of the subject of practical floriculture, and of the sanitary influences of forests and plantations. By JM Anders, MD, Ph.
Страница 179 - At a later date3 he went further and stated that the Mycorhiza is a symbiotic condition which may perhaps be found in all trees under certain conditions ; that it is found only where the soil consists of humus or undecomposed plant remains ; that the fungus of the Mycorhiza conveys to the tree not only the necessary water and the mineral constituents of the soil but, also, the organic material derived directly from the humus and decomposing vegetable matter ; and that it is through the agency of...
Страница 231 - Cultivation, with a description and the botanical and proper names of all the indigenous trees of the United States, both Evergreen and Deciduous, with Notes on a large number of the most valuable Exotic Species. By Andrew S. Fuller, author of " Grape Culturist," " Small Fruit Culturist,
Страница 143 - Pftanzenfamilien, nebst ihren Gattungen und wichtigeren Arten insbesondere den Nutzpflanzen, bearbeitet unter Mitwirkung zahlreicher hervorragender Fachgelehrten, von A. Engler und K. Prantl.
Страница 203 - ... considered as distinct does not necessarily prove them to be merely forms of the same species; (4) the occurrence of a hybrid between two structurally different genera does not prove the necessity of uniting them in one, nor can such hybrids be arbitrarily referred to either of the parent genera; (6) species and genera will always have to be dealt with in the scheme of.