title: THE REFRACTIVE INDICES OF WHOLE CELLS.
abstract: Refractive indices of intact sporangiophores of Phycomyces were computed from measurements of focal length and radius of curvature of the cells. For the six cells studied, effective values of n were obtained ranging from 1.35 to 1.40. The average effective n was 1.38. Senn's determination of refractive indices of other plants cells gave much higher values: n = 1.37 to 1.52. The precision of the method and possible sources of this discrepancy are discussed.
authors.affiliation: Laboratory of General Physiology, Harvard University, Cambridge.
authors.forename: E S
authors.initials: ES
authors.lastname: Castle