The ornamental design for a counting chamber—8 chamber slide for counting cells in biological samples, as shown and described.
FIG. 1 is a top planar view of a counting chamber—8 chamber slide for counting cells in biological samples of my design.
FIG. 2 is a bottom planar view of the counting chamber—8 chamber slide for counting cells in biological samples of FIG. 1.
FIG. 3 is a front elevational view of the counting chamber—8 chamber slide for counting cells in biological samples of FIG. 1, the rear elevational view being a mirror image of the front elevational view.
FIG. 4 is a left elevational view of the counting chamber—8 chamber slide for counting cells in biological samples of FIG. 1, the right elevational view being a mirror image of the left elevational view; and,
FIG. 5 is a top perspective view of the counting chamber—8 chamber slide for counting cells in biological samples of FIG. 1.