Note 1683 — LETTER XXXV.
Reading edition
At first I had named this piece the antecosta, and the mesostethium the postcosta; and there is certainly some analogy between the thorax of insects, consisting of several pieces that follow each other, and the vertebral column; between their three sternums and the sternum, and between their other pieces and the ribs of vertebrate animals. Comp. Chabrier, ubi supr. c. iv. 49. note 1.