. Handbook of bacteriological diagnosis for practitioners, including instructions for the clinical examination of the blood. Bacteriology; Diagnosis. FIXATION OF BLOOD FILMS. 163 longitudinally. Paper which is decidedly ridged or ribbed will not answer. 3. Needle. Method.—The patient is pricked and the first drop of blood wiped away as before. One of the half strips of cigarette paper is now held in the right hand, the index finger being placed above the strip and the edges held between the thumb and index finger and the index and middle fingers respectively; this converts it into a gutter, th
. Handbook of bacteriological diagnosis for practitioners, including instructions for the clinical examination of the blood. Bacteriology; Diagnosis. FIXATION OF BLOOD FILMS. 163 longitudinally. Paper which is decidedly ridged or ribbed will not answer. 3. Needle. Method.—The patient is pricked and the first drop of blood wiped away as before. One of the half strips of cigarette paper is now held in the right hand, the index finger being placed above the strip and the edges held between the thumb and index finger and the index and middle fingers respectively; this converts it into a gutter, the convex edge of which is downward. The edge of this gutter which points away from you (and which is formed by a machine-cut edge of the paper). P m Fig. 28.—Method of spreading films with cigarette paper. is now dipped into the drop of blood and a small quantity picked up on its lower surface. This lower surface is then placed on a clean slide parallel to one of its shorter edges and about half an inch from it, and pressed gently upon it so as to flatten out the paper gutter; as this flattens out the edge of the drop of blood on its under surface will follow it. The strip of paper is now drawn towards the other end of the slide with a steady uniform movement, and in doing so the drop of blood is spread out into a long uniform film. In this way a film i in. wide and 2 in. long can be made on a single slide. A fresh piece of paper is to be used for each specimen. M 2. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Emery, Walter d'Este, 1870-1923. Philadelphia, P. Blakiston's Son & Co.
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