The Structure and Life-history of the Cockroach (Periplaneta orientalis) / An Introduction to the Study of Insects

by L. C. Miall; Alfred Denny

[133] Ib., 1877.

[134] We are indebted to Prof. Plateau for the statement of his views given in the text.

[135] Dissert. de Bombyce, pp. 15, 16 (1669).

[136] Biblia Naturæ, p. 410.

[137] Schrift. d. Marburg. Naturf. Gesellschaft, 1823.

[138] See, for a full account of this discussion, MacLeod sur la Structure des Trachées, et la Circulation Péritrachéenne (1880). The peritracheal circulation was refuted by Joly (Ann. Sci. Nat., 1849).

[139] It may be observed that Graber, who has paid close attention to the heart of Insects, describes the inlets (e. g., in Dytiscus) as situated, not at the hinder end, but in the middle of each segment. We have not been able to discover such an arrangement in the heart of the Cockroach.

[140] Lyonnet.

[141] Brandt, Ueb. d. Herz der Insekten u. Muscheln. Mél. Biol. Bull. Acad. St. Petersb. Tom. VI. (1866).

[142] Arch. f. mikr. Anat., Bd. IX. (1872); Insekten, ch. x.