Furniture constructions

A ready to assemble article of furniture including at least three members detachably connected by mortises and tenons each of said members having a pair of opposite end margins, a pair of opposite side margins and opposite sides bordered by the end and side margins, one of said members being the first member, one of the sides of the first member provided with a first mortise open with respect to at least one of said end margins and extending at least part way towards the opposite end margin (margins), said first member also having a second mortise open with respect to one of said side margins thereof and extending towards the opposite side margin, intersecting said first mortise and extending towards the opposite side margin and beyond said first mortise, second member being the second member and provided with a tenon extending along one side margin (portion) and of a length and shape liar entry in the first mortise of the first member and for sliding movement therein, in one direction into proximity to one (the opposite) end margin of the first member, said (another) second member then in the first operative position thereof and the tenon thereof in a non-obstructing position relative to the second mortise and, when slid, in the opposite direction to a predetermined extent into proximity to the (said one) opposite end margin of the first member establishing (to establish) the second operative position of said second member with the second mortise of the first member obstructed, and an third member which is the third member provided with a tenon for sliding entry into, the second mortise of the first member into an operative position when said second (another) member is in the first operative position thereof and held in said operative position when the second member is in the second operative position thereof (with the tenon retained in the operative position thereof) then to establish an assembly, at least one of the mortises of the first member and the tenon to be entered therein being a self-locking mortise and tenon respectively.