[352]. Entomological News (Philadelphia), vol. xi., Jan. 1900.

[353]. For the Protozoa to which these and similar diseases are due, cf. vol. i. pp. 120 f.

[354]. C. R. Soc. Biol. Paris (7), iv., 1882, p. 305.

[355]. Ann. Soc. Linn. Lyon, xxii., 1876, p. 29.

[356]. Bull. Soc. Nat. de Moscou, liv. 1879, pt. i. p. 234.

[357]. Z. wiss. Zool. xxxvii., 1882, p. 553.

[358]. P. Z. S., 1895, p. 174.

[359]. Arch. f. Naturg. i., 1876, p. 65.

[360]. Tr. Linn. Soc. (2), v. Zool., 1890, p. 281.

[361]. See account given by Tulk in Mag. Nat. Hist. xviii., 1846, p. 160.