Note 419 — ON PARASITES IN GENERAL. (continued 14)
Reading edition
[This is not the case, for Carpenter has shown that muzzled calves become infected (“Mém. First Int. Cong. Ent.,” pp. 289–293). Jost (Zeitschr. f. wiss. Zool., 1907, xxxvi, pp. 644–715) thinks that the ova, not young larvæ, are ingested (vide note in Supplement).—F. V. T.]