Note 1171 — LETTER XXXIV.
Reading edition
A harmonic suture is when the margins of two flat bones simply touch each other, without any intermediate substance; and a squamose, when the thin margin of one covers that of the other. Anat. Compar. i. 124. With regard to the flat portions of the integument of insects, they have some motion; whereas a suture is an articulation without movement. Ibid.