title: Water Permeability of Bacterial Spores and the Concept of a Contractile Cortex.
abstract: Assumption of a water-impermeable coat on bacterial spores is inconsistent with known permeabilities of organic materials. A low water content may arise through compressive contraction of the cortex during spore maturation.
authors.forename: J C
authors.initials: JC
authors.lastname: Lewis
authors.forename: N S
authors.initials: NS
authors.lastname: Snell
authors.forename: H K
authors.initials: HK
authors.lastname: Burr