. Medical diagnosis for the student and practitioner. Fig. 45.—Mixing pipette for red 46.—Mixing pipette for white corpuscles. slide. These ruled rectangles were separated by a small moat to allow freepassage of the diluted blood. On either side of these ruled rectangles twounruled rectangular pieces of glass were cemented which extended the en-tire width of the slide. These were exactly Ko mm- thicker than the ruledrectangles, so that when the cover glass rested on these the required depthof solution over the ruled area was attained. In the Levy construction a rectangular depress
. Medical diagnosis for the student and practitioner. Fig. 45.—Mixing pipette for red 46.—Mixing pipette for white corpuscles. slide. These ruled rectangles were separated by a small moat to allow freepassage of the diluted blood. On either side of these ruled rectangles twounruled rectangular pieces of glass were cemented which extended the en-tire width of the slide. These were exactly Ko mm- thicker than the ruledrectangles, so that when the cover glass rested on these the required depthof solution over the ruled area was attained. In the Levy construction a rectangular depression is cut into the slideitself extending across the entire width. In the middle of this depression ispermanently fixed a rectangular strip of glass, also extending entirely acrossthe slide, and on this are the rulings. When the cover glass is placed inposition on the slide itself the solution over the ruled areas is of the re- 134 MEDICAL DIAGNOSIS quired depth. The method of construction entirely removes the possi-bility of the loosening of the cell by the drying out of the balsamcement an
Size: 3009px × 831px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, booksubjectdiagnos, bookyear1922
