The anther consists of lobes containing the minute powdery pollen grains, which, when mature, are discharged by a fissure or opening of some sort.
A yellowish powdery mixture of zinc and lead oxides collects on the lead; it is skimmed off and sold as paint.
Plucking one from the bush, she rolled the berry in her hand, removing the powdery haze from its surface.
It has in general one value for the powdery metal as obtained by reduction of the oxide in hydrogen below the melting point of the metal, another for the metal in the state which it assumes spontaneously on freezing, and this latter value, in general, is modified by hammering, rolling, drawing, &c. These mechanical operations do not necessarily add to the density; stamping, it is true, does so necessarily, but rolling or drawing occasionally causes a diminution of the density.
These Arka-tagh mountains are built up, at all events superficially, of sand and powdery, finely sifted disintegrated material.
Then the walls of the mother-cells are absorbed, and the pollengrains float freely in the fluid of the pollen-sacs, which gradually disappears, and the mature grains form a powdery mass within the anther.
The mineral had, however, been earlier known as a blue powdery substance, called "blue ironearth," met with in peat-bogs, in bog iron-ore, or with fossil bones and shells.
Tin is removed mainly as a powdery mixture of stannate of lead and lead oxide, arsenic and antimony as a slagged mixture of arsenate and antimonate of lead and lead oxide.
Others have a special faculty of consuming dry, powdery vegetable and animal refuse, and are liable to multiply in manufactured products of this nature, such as mouldy cheese.
The powdery metal when heated in air to 150° or 170° C. catches fire and burns brilliantly into U 3 0 8; it decomposes water slowly at ordinary temperatures, but rapidly when boiling.
Moreover the rain penetrates into the small interstices between its particles and dissolves out some of the materials which bind the whole into a solid stone, the surface then becoming a loose powdery mass which falls to the ground below or is carried away by the wind.
The contents of the iron recipient consist of a powdery mixture of oxide and metal, which is added to the next charge, except what is put aside to be sold as "zinc dust."
If zinc be heated to near its boiling-point, it catches fire and burns with a brilliant light into its powdery white oxide, which forms a reek in the air (lana philosophica, " philosopher's wool").
But if the gold-strength of the bath be maintained, only gold is deposited at the cathode - in a loose powdery condition from pure solutions, but in a smooth detachable deposit from impure liquors.
The powdery metal burns readily in air; the crystalline metal requires to be heated in an oxyhydrogen flame before it catches fire.
The climate is so arid, and precipitation so extremely rare, that the fine powdery material falls a helpless prey to the winds.
So are the tiny Coniopterygidae, which are covered with a white powdery secretion, and have very small hind-wings.
The paraphyses branch and form a network (capillitium) over the asci, the capillitium and ejected spores forming a long persistent powdery mass (mazaedium).
By the breaking down of the inner tissues the spores often come to lie as a loose powdery mass in the interior of the hollow fruitbody, mixed sometimes with a capillitium.
Rost); in origin it is allied with "ruddy" and "red," the reddish-brown powdery substance which forms on the surface of iron or steel exposed to atmospheric corrosion.
25, f), supporting at its summit the anther (a), consisting of the pollen-sacs which contain the powdery pollen (p), the microspores, which is ultimately discharged therefrom.
25 f), and a broader portion, usually of two lobes, termed the anther (a), containing the powdery pollen (p), and supported upon the end of the filament.
His face was fresh and rosy, his white-plumed hat, tilted to one side, disclosed his curled and pomaded hair besprinkled with powdery snow.