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"You say that the blood found in the safe was defibrinated or artificially treated. What inference do you draw from that fact?" "I infer that it was not dropped from a bleeding wound." "Can you form any idea how such blood should have got into the safe?" "None whatever." "You say that the thumb-print is a remarkably distinct one. What conclusion do you draw from that?"

And then there is the further fact that the paper found in the safe had no loose fibre to account for the mark." "What is your explanation of the presence of defibrinated blood in the safe?" "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.

Obtain a pint of fresh blood; put it into a bowl, and whip it briskly for five minutes, with a bunch of dry twigs. Fine white threads of fibrin collect on the twigs, the blood remaining fluid. This is "whipped" or defibrinated blood, which has lost the power of coagulating spontaneously. General Plan of Circulation. All the tissues of the body depend upon the blood for their nourishment.

What does the experiment show with reference to the relative weight of blood and water? Fill a large test tube or a small bottle one fourth full of the defibrinated blood and thin it by adding an equal amount of water. Then place the hand over the mouth and shake until the blood is thoroughly mixed with the air.

The injection of the cholera blood is for the purpose of stimulating the production of antibodies by the body tissues, and raising the protective properties of the immune hog's blood. The blood from the hyperimmunes is defibrinated and a preservative added, and after it has been tested for potency and freedom from contaminating organisms, it is ready for use.

The red thumb-print disagreed with the genuine print in its scale or dimensions. It was not the prisoner's thumb-print; but neither was it that of any other person. The only alternative is that it was a forgery. "In the second place, that print was evidently made with the aid of certain appliances and materials, and one of those materials, namely defibrinated blood, was found in the safe.

Minot, I have succeeded in preserving alive the nerve cells of the spinal ganglia of adult dogs and rabbits by placing them in defibrinated blood of the same animal, through which there bubbled a current of oxygen.

Allow the blood to remain a short time; then wash it off with a stream of distilled water, when a blue spot upon a red or violet ground will be seen, indicating its alkaline reaction, due chiefly to the sodium phosphate and sodium carbonate. Experiment 94. Place on a glass slide a thin layer of defibrinated blood; try to read printed matter through it. This cannot be done. Experiment 95.

"If it was really blood at all, I should say that it was either defibrinated blood that is, blood from which the fibrin has been extracted by whipping or that it had been treated with an alkaline salt." "You are of opinion that the blood found in the safe could not have been ordinary blood shed from a cut or wound?" "I am sure it could not have been." "Now, Dr.

To make blood transparent or laky. Place in each of three test tubes two or three teaspoonfuls of defibrinated blood, obtained from Experiment 89, labeled A, B, and C. A is for comparison. To B add five volumes of water, and warm slightly, noting the change of color by reflected and transmitted light.