A SIMPLE METHOD FOR THE MEASUREMENT OF BLOOD-CELLS
Philip Atlee Sheaff · JAMA · 1910
In the microscopic examination of blood it sometimes becomes desirable for purposes of comparison and classi- fication to know, with some degree of accuracy, the size of certain cells.The method about to be described is simple, fairly accurate, and can be used by anyone who cares to expend a little patience in adapting the eye- 3\ m=3/ 4\ 7\ m=1/ 2\ 11\ m=1/ 4\ 15 Sketch illustrating a simple method for the measurement of blood-cells.View of field, with available measurements in microns, when the radius is divided into halves and thirds.Spun glass A B C giving black line effect and forming gauge.