||P.965 right column bottom paragraph: "The results of thrombokinetic measurements in 15 normal subjects are shown in Table I. They had a mean platelet count of 250,000 platelets/µl ±35,000 [footnote : This and subsequent variances are all ±1 SD.], immediate recoveries in the systemic circulation of injected 51Cr-labeled platelets of 64.6% ±4.1, and a mean platelet survival of 9.9 days ±0.6 (Fig. 3)." P.966 bottom of left column, footnote : "This value was obtained in Zenker's formaldehyde-fixed sections which produced about 25% shrinkage in diameter. The volume estimate, therefore, is relative only and does not
represent an absolute measurement of megakaryocyte volume in vivo."