Examples in low relief are the Hydra pediment from the Acropolis and the pediment of the Page 35 Megarian Treasury at Olympia, which, on artistic grounds, can be set down as the two earliest now in existence.
For the Hydra pediment, there exists a still closer parallel, in an archaic Corinthian amphora, published by Gerhard.
Most of the polypes are fixed and stationary; but the hydra and some others have the power of changing their positions, which they do in search of the light of the sun.
The devouring hydra will perish for lack of food; and from its world-covering corpse a new race will issue, stronger and more patient than the old.
The many heads of this Anti-Friedrich Hydra had withal each its own body, and separate set of notions and advantages.
The old Lernean Hydra had many heads; but they belonged all to one body.
The conflagration showed forth all its glories; the black hydra and the scarlet dragon appeared amid the smoke-wreaths in all their sombre and vermilion hues.
And was it not of no avail to the Hydra to grow through {its own} loss, and to recover double strength?
The number of heads of the Hydra varies in the accounts given by different writers.
Glaring round, in search of a hydra which did not smile, the speaker discovered it in the reporters' gallery.
King and country still have loyal servants, able to pick up a stone and fling it at the head of the many-headed hydra of treason.
Kasos and Psara had both been captured and their inhabitants either massacred or carried away into slavery, while the sailors of Hydra and Spetzas had not moved a hand to succour their countrymen.
Psara quickly followed the example of Spetzas, but Hydra was some time before it raised the Greek flag.
On the 20th of September the Turkish fleet appeared off the entrance to the gulf, and the Greek fleet from the islands of Hydra and Spetzas stood out to meet them.
John Howard had grappled with the hydra before her, and finally succumbed to his exertions.
Illustration: Hydra viridis with developed young one, and bud beginning to sprout.
Illustration: Anguillula pierced by stinging organs of theHydra viridis.
Watching the hydra it was curious to note the changes of form which these creatures are able to assume.
Our common Aurelia measures some twelve to eighteen inches in diameter when full grown, and yet in the winter it is a Hydra so small as almost to escape notice.
The proboscis now corresponds to the Hydra of our Nanomia, with the cluster of tentacles attached to its upper edge (Fig.
In the first set which we will examine the Hydra is open-mouthed.
In the latter, the horny sheath which encloses the stem extends to form a protecting calycle around the Hydra heads.
Hydroid, consists, when first formed, of a single Hydracontaining an oblong oil bubble (Fig.
A minute, free-swimming embryo develops from the ovum, which settles down and becomes a little polyp-like organism, the Hydra tuba.
Thus the fresh-water hydra is said to divide into two parts, each of which grows up into a perfect hydra.
In other organisms allied to the hydra the buds may remain in attachment, and a colony will result.
Under suitable conditions, however, if well fed, thehydra normally multiplies by budding.
We saw that, if a hydra be divided, each portion reproduces appropriately the absent parts.
The cut stump of the amputated tentacle of the hydra or the snail buds forth a new organ.
But, like the isolated fragment in the hydra subdivided by fission, the little group in which budding commences contains a fair sample of the various kinds of cells which constitute the hydra.
Scarcely less wonderful is the power which separated bits of certain organisms, such as the green freshwater hydra of our ponds, possess of growing up into the complete organism.
Cut a hydra into half a dozen fragments, and each fragment will become a perfect hydra.
Before the passage, horrid Hydra stands, And Briareus with all his hundred hands; Gorgons, Geryon with his triple frame; And vain Chimaera vomits empty flame.
Antæus long resisted Hercules; and the heads of the Hydra grew as fast as they were cut off.
In Hydra we find a dermal layer of cells and an inner layer of cells separated by a gelatinous mass known as mesogloea; in this mass between the dermal and inner layers scattered cells are found, the interstitial cells.
Experiments were made now years ago of turning a Hydra inside out so that its internal layer should become external, and vice versa, and they were said to have been successful.
Now, according to Brauer the position of the germ in Hydra is the interstitial cell-layer.
At night-time, when the observer was not looking, the hydra reinverted itself, so that again its original digestive surface was inside and it lived and prospered as before.
Then, suddenly, out of the clay came forth a seven-headed hydraand each of its heads bore a name.
In this stage, in which it is very common in our aquaria, it has been supposed a new animal, and has been named Hydra tuba.
But how," asked Willy, "could anybody manage to turn so small a thing as a hydra inside out?
The hypothetical, extinct Archydra must be looked upon as the common primary form of the whole group; it has left two near relations in the still living fresh-water polyps (Hydra and Cordylophora).
The lowest and simplest members of this class are the little fresh-water polyps (Hydra and Cordylophora).
Scarcely distinguishable from the Hydra are the adherent Hydroid polyps (Campanularia, Tubularia), which produce freely swimming medusae by budding, and out of the eggs of these there again arise adherent polyps.
Here theHydra took up his position, and Hercules was sent to destroy him.
The Hydra had nine heads, of which the middle one was immortal.
At this moment with horrid clang the brazen gates unfolded, and Aeneas saw within a Hydra with fifty heads guarding the entrance.
Hercules did not deliver Greece from a hydra with seven heads; but Hercules and his hydrawere sung.
Brill: Well do you know Mr. Hydra that I am upon the Tip-toe of Expectation to know what this Medley can be?
Tis true Mr. Pasquin as Mr. Hydrasays my whole Life is devoted to the Service of the Fair.
With the rise of the nation the wealth and importance of Hydra has strangely decayed.
The rank-breath'd Hydraand the viper's rage With hand and voice he lulled asleep; his art Their bite could heal, their fury could assuage.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "hydra" in a variety of sentences. We hope that you will now be able to make sentences using this word.
