deviations). This may be attributed to the accuracy to which corneal thickness can be read with the specular microscope. All three methods appeared to be equally precise from session to session (as indicated by the intercession standard deviations). On the other hand, the Mishima-Hedby attachment demonstrated a decreasing trend from session to session (as indicated by the analysis of variance r...

The DNA content of individual nuclei in four immature human placentas was determined by microspectrophotometric analysis of Feulgen-stained sections. The absence of mitosis in the syncytiotrophoblast, taken together with the finding of a diploid unimodal distribution, at a time of rapid placental growth, indicated that the syncytiotrophoblast possessed little or no intrinsic reproductive capaci...