Textbook science is generally neat, crisp and well-ordered.
In short, coffee-houses were calm, sober and well-ordered establishments that promoted polite conversation and discussion.
In laminar flow, fluid particles travel along well-ordered non-intersecting paths.
British Dictionary definitions for well-ordered
(logic, maths) (of a relation) having the property that every nonempty subset of its field has a least member under the relation: less than is well-ordered on the natural numbers but not on the reals, since an open set has no least member