Festschrift f. Leuckart, Leipzig, 1892, p. 167.
Quart. Journ. Micros. Sci. vol. xxiii. 1883, p. 90.
The intermediate host in the Sandwich Islands is said to be Limnaea peregra. See Lutz, Centralbl. f. Bakter. xi. 1892, p. 783.
The mortality in wet years, however, is said to be largely due to pulmonary inflammation. This and other causes of death are not always discriminated in the returns.
See Thomas, Quart. Journ. Micros. Science, xxiii. 1883. Neumann, Parasites of Domesticated Animals, translated by Fleming, 1892.