177; Lobdell v. Keene, Minn. 90, 88 N. W. 426; Dyer v. Reitz, 14 Mo. App. 45.—Unity of possession. Joint possession of two rights by several titles, as where a lessee of land acquires the title in fee-simple, which extinguishes the lease. The term algo describes one of the essential properties of a joint estate, each of the tenants having the entire possession as well of every parcel as of. the whole. 2 BL acant possession.:..An estate which has been abandoned, vacated, or forsaken by the tenant.