The young American's blood seemed clotting in his veins; he felt icy cold at the tips of his fingers, and a dimness was before his eyes; but through that dimness, the boatswain's-mate, scourge in hand, loomed like a giant, and Captain Snipes and the blue sea, seen through the opening at the gangway, showed with an awful vividness.

This remarkable process is known as coagulation, or the clotting of blood; and the liquid which separates from the clot is called serum.

] This clotting of the blood is due to the formation in the blood, after it is withdrawn from the living body, of a substance called fibrin.

The clotting of the blood may be hastened by free access to air, by contact with roughened surfaces, or by keeping it at perfect rest.

The unfavorable effects of the want of clotting are illustrated in some persons in whom bleeding from even the slightest wounds continues till life is in danger.

Such a wound bleeds freely because the clean-cut edges do not favor the clotting of blood.

The clear, watery fluid which separates from the clot of the blood.

The cause of the clotting of blood is not yet fully understood.

Although the process has been thoroughly investigated we have not yet a satisfactory explanation why the circulating blood does not clot in healthy blood-vessels.

bull head, dunderhead, addlehead^, blockhead, dullhead^, loggerhead, jolthead^, jolterhead^, beetlehead^, beetlebrain, grosshead^, muttonhead, noodlehead, giddyhead^; numbskull, thickskull^; lackbrain^, shallowbrain^; dimwit, halfwit, lackwit^; dunderpate^; lunkhead sawney [U.S.], gowk^; clod, clod-hopper; clod-poll, clot-poll, clot-pate; bull calf; gawk, Gothamite, lummox, rube

bull head, dunderhead, addlehead^, blockhead, dullhead^, loggerhead, jolthead^, jolterhead^, beetlehead^, beetlebrain, grosshead^, muttonhead, noodlehead, giddyhead^; numbskull, thickskull^; lackbrain^, shallowbrain^; dimwit, halfwit, lackwit^; dunderpate^; lunkhead sawney [U.S.], gowk^; clod, clod-hopper; clod-poll, clot-poll, clot-pate; bull calf; gawk, Gothamite, lummox, rube

Their clotted bandages would clot still more and grow stiffer and harder with each dragging hour.

This clot of dust on which we live will grow cold, and break and scatter in the abysses of space.

"It will consist of a drop of clear, nearly colourless liquid, in the middle of which will be a small, tough, red clot.

"The paper would be wetted by the colourless liquid, and the solid clot would probably adhere to the paper in a mass.

The liquid would appear like water, and the clot would appear as a solid mass sticking to the paper.

"Always, unless some artificial means are taken to prevent it from clotting.

" "By what means can blood be prevented from clotting or solidifying?" "There are two principal methods.

"It was probably used by the forger in making the thumb-print, for which purpose fresh blood would be less suitable by reason of its clotting.

The clot remaining from the hæmorrhage after the operation was removed, the wound was irrigated with a hot solution of sublimate, and then dusted with iodoform and covered with a dressing of iodoform gauze and absorbent wool.

Yet he fought on, even after the final thrust had come, and died still hacking and cursing, with foul cries upon his lips, and his blood clotting upon his orange beard.

He told me it was the most extraordinary death he ever heard of, but his theory was that a small clot of blood arrested the circulation, as she had no disease.

The animal now stood rigidly over the blood clot.

If a better test is required, boil the mixture, and it will form perfect clot.

It left the face undisfiguredpale, but tranquil and undistorted as a sleeping child'snot even a clot of blood was there to mar its beauty.