Copper sulphate-Bluestone; a combination of copper and sulphuric acid. Corolla-A whorl of leaves just inside the calyx and usually colored other than green. Cryptogam-A low class of flowerless plants; example, mush rooms. Curculio-A snouted beetle, very injurious to the plum and apricot. Cuttings-Parts of the stem, root, or leaf used for producing a new plant. De Candolle-A French botanist. Decomposition—The act of breaking up a compound into its elements. Deliquescent-Branched in a manner so that the stem or trunk is lost in the branches. Detasseling-Removing the tassels. Disseminate-To scatter, as seed; to spread. Dormant-Not active; asleep. Effervescence-The production of innumerable small gas bubbles in a liquid by chemical activity. Evaporation-The changing from a liquid to a gaseous state. Fertilizer-Any material that will enrich the soil and supply plant food. Fiber-Short cells which make up the substance of solid wood. Fibrous Consisting of fibers. Example, the roots of the wheat plant. Florist-One who cultivates flowering plants. Formaldehyde-A chemical compound used for preventing decay. Function-Office or action of organs in animal or vegetable life. Germinate-To grow. Gluten-A substance in grains containing albumen. It makes wheat dough tenacious and elastic. Graphic-Written, drawn, inscribed. Gravity-The force which tends to pull bodies to the center of the earth. Heaves-A disease in horses characterized by heavy and laborious breathing. Humus-Vegetable mold formed by the decay of plants. Ingredient-One of the substances composing any compound or mixture. Insoluble-Not readily dissolved. Kainit-A potash fertilizer found in large quantities in Germany; contains about 25 per cent. sulphate of potash, mixed with sulphate of magnesia and common salt. Kernel-That which is inclosed in a shell, husk, etc. Lime Combination of calcium and oxygen, formed by burning limestone. Lime water-A solution made by dissolving lime in water. Litmus paper-A paper used for determining whether substances are acid or alkaline. Loam-Soil containing a mixture of sand and clay. Membrane--A thin tissue that will permit the passage of a liquid through it. Mulch-A layer of vegetable matter or dust on the soil used to check the loss of soil moisture by evaporation. Nectar-A sweet juice found in flowers from which bees make honey. Nitrate-Combination of nitric acid with a metal or salt. The form of nitrogen used by plants. Nitrogen-An element of plant food used chiefly in making stems and leaves. Nitrogen-free extract-Animal or vegetable compounds with no nitrogen in their composition. Nitrogenous matter-Substances containing nitrogen. Nutritive-Having the power of nourishing or building up the body. Oblate-Flattened or shortened. Oblong--Longer than broad. Organic matter-The part that passes into the air in burning substances. Osmosis-The mixing of dissimilar substances through a porous membrane. Ovary-A hollow case at the base of the pistil containing the egg cell. Pasteurizing-A process by which the fermentation of milk is retarded. Petal-One of the divisions of the corolla. Phosphoric acid-Compound composed of phosphorus and oxygen. Pistil-Part of the flower that receives the pollen. Potash-Composed of potassium and oxygen; one of the essentials of plant food. Prolificacy-Fruitfulness, great productiveness. Propagate-To generate, to increase, to renew. Rape-A plant of the turnip family. Ration-A fixed amount or quantity of food. Resin-A substance that exudes from plants when incisions are made in the stems or branches. Respiration-The act of breathing. Rigidity-The state of being rigid. Saturate-To fill fully, to soak. Sediment-The matter which settles to the bottom from water or any other liquid. Sepal-One of the divisions of the calyx. Silt-Very fine soil particles, just between fine sand and clay in size. Solutions-Product formed by dissolving a gas or a solid in water. Stamen-Parts of the flower which bear the pollen. |