[14] Mémoires du Muséum d’histoire naturelle, xviii. 454 sqq.
[15] I have purposely given Blatta as the generic name, rather than Stilopyga, which should properly be used, as the former is only employed in very recent literature.
[16] Miall and Denny, The Cockroach, p. 20.
[17] Cambridge Natural History, v. 231.
[18] The Senses of Animals, p. 44.
[19] Cambridge Nat. Hist. v. 223.
[20] Book of Nature, p. 94.
[21] This refers to the gizzard. Echinus was used to denote the third stomach of Ruminants (now called the manyplies), because it was thought to resemble a hedgehog rolled up.
[22] Miall and Denny, The Cockroach, p. 118 (note).
[23] Introduction to Entomology, letter xi.