Let (Z, \ \ \ \) be a Banach space. Then (Z, \ \ \ \) is reflexive if and o
nly if for each convex cone Lambda admitting a bounded base in (Z*, \ \ \ \
*), Lambda (*), is solid in (Z, \ \ \ \). Here Z* denotes the dual of (Z, \
\ \ \) and Lambda (*) denotes the polar of Lambda taken in Z. (C) 2001 Aca
demic Press.