The unknown birds proved to be the White-eyed Pochard, or Ferruginous Duck (Fuligula nyroca) which evidently intended to breed here, though a search for their nests proved futile.
Dark clays have become yellow, or often snow-white; or have assumed a chequered or brecciated appearance, being crossed with ferruginous red stripes.
At some points, as at Louans, south of Tours, the shells are stained of a ferruginous colour, not unlike that of the red crag of Suffolk.
The Red crag is distinguished by the deep ferruginous or ochreous colour of its sands and fossils, the Coralline by its white colour.
The colours of some of them are as brilliant as the plumage of a bird, bright yellow, deep orange, and a rich ferruginous brown inclining to red.
The face and head of the Pteropus are covered with brownish-grey hairs, the neck and chest are dark ferruginous grey, and the rest of the body brown, inclining to black.
Organic Remains of theFerruginous Sand Formation of the United States, 128 5.
Topographical and Geological Map of the Coal Measures and of the Muriatiferous and Ferruginous Deposits in the Secondary Region of the Valley of the Ohio; with profile of the Ohio Valley, 1 2.
Organic Remains of theFerruginous Sand Formation of the United States, 288 WOOD CUTS.
Fossil Organic Remains of the Ferruginous Sand Formation of the U.
All the wings are yellowish below near the body, ferruginous in the middle, and of a dark brown at their extremities.
The body and legs are of a ferruginous colour, the hemelytra a dull brown, and the wings hyaline, or glassy, and slightly blackish.
There are many ferruginous particles in this sand, which are easily discovered by a magnet.
From nose to tail it measures about eighteen inches, and its general colour is a pale ferruginous brown, mixed with gray.
It is in the rocky hollows also that the oleanders or ferruginousrhododendrons vegetate, sole representatives in Europe of a genus which among the Asiatic mountains numbers several species.
I even suspect that both had been sophisticated and mixed nearly one half with foreign crystalline and ferruginous rusty matters, which are not to be met with in the natural platina.
Emery, which is a ferruginous mineral, although as dense again as bismuth, retains heat longer.
But my second platina, that which I had from the royal cabinet, had a mixture of some ferruginous parts, which under the hammer were reduced into a yellow powder, and had all the characters of rust.
The typical form is regular, distinct from its allies in the hygrophanous pileus, in the gills being isabelline-ferruginous and quite entire, and in being without any dark-purple or purple color.
Spores= dark ferruginous on a white ground, paler on a black ground.
The gills when young are yellow or pale-yellow, but when mature they assume a ferruginous or rusty color like that of the spores.
Cortina entirely fibrillose, superior and persistent in the form of a ring, at length ferruginous with the spores.
Cortinarius is distinguished from Flammula by growing on the ground and by the bright ferruginous color of its spores.
The spores are ochraceous on a white ground, somewhatferruginous on a black ground.
A ferruginous limestone lies against the ore on the south side.
The ferruginous basis of the Vitriol, which is mixed with this salt, gives it the red colour.
This Regulus is a sort of Bismuth, generally adulterated with a mixture of ferruginous and arsenical parts.
This yellow colour may also be in part produced by some ferruginous particles, of which a small quantity always remains combined with the Regulus, notwithstanding its former depuration by Antimony.
Ferruginous earth being naturally of an orange colour, a stone or earth may be judged to contain iron, if either naturally, or after roasting, it appears to have one shade of yellow or red.
The Caput mortuum of this distillation of Vitriol is the ferruginous earth of this Salt, and is called Colcothar.
Moreover, this Acid hath either no effect, or very little, upon iron that has lost much of its Phlogiston by contracting an union with any Acid; which is the case of the ferruginous basis of Vitriol.
Our mid-day halt was at Wyeth's creek, in the bed of which were numerous boulders of dark, ferruginous sandstone, mingled with others of the red sandstone already mentioned.
There were the remains of an old fort here, thrown up in some sudden emergency, and on the opposite side was a picturesque bluff of ferruginous sandstone.
They are surmounted by slabs of a dark ferruginous conglomerate, forming black caps, and adding very much to their columnar effect at a distance.
Several other argillo-ferruginous minerals possess the same power, and are used under this term.
It is then absolutely free from the disagreeable taste of certain ferruginous preparations.
Ferrous lactate is a greenish-white salt; and when pure, forms small acicular or prismatic crystals, which have a sweetish ferruginous taste, and are soluble in about 48 parts of cold and in 12 parts of boiling water.
When the liquor has again become transparent, it is introduced into the dialyser; the distilled water in which the vessel containing the ferruginous solution is placed, must be frequently renewed.
Potassio-tartrate of iron is an excellent ferruginous tonic.
Immediately mixed with the soot were the ferruginous corpuscles observed by Tissandier.
When the water shows the absence of chlorides, and the preparation ceases to have a ferruginous taste, the operation may be regarded as finished.
The above is well adapted to determine the quantity of iron in clay ironstone, the most common ferruginous ore in England.
Celebrated from the ancient times for its ferruginous springs.
Cups with well-shaped rounded handles, made of some kind of red ferruginous earth, others of gray material, were picked up in all the houses.
The steep descents form cycloid curves, that flatten at their bases, and over which the ferruginous stratum of mould atop projects like a cornice.
We can understand now what should happen when the ferruginous compound is placed in contact alternately with organic matter and oxygen.
The theory of slow combustion effected through iron, while not absolutely contradicted in principle, was not entirely confirmed in detail, so far as concerned iron, or the more prominently ferruginous tissue.
