. -^ Fig. 147.—Egg of the common liver fluke containing a ciliated embryo (miracidium) ready to hatch out: d, remains of food ; e, cushion of jelly-like substance ; /, boring pa- pilla ; h, eye-spots ; A-, germinal cells. X 680. (After Thomas, 188:-5, p. 283, Fig. 2.) of the latter, and are expelled from the host with the ffecal matter. Many of them become dried, and then undergo no further development; but others are naturally dropped in the water in marshes, or, being drojjped on dry ground, they are washed into water by the rain, or are carried to a more favourable position by the feet of a
. -^ Fig. 147.—Egg of the common liver fluke containing a ciliated embryo (miracidium) ready to hatch out: d, remains of food ; e, cushion of jelly-like substance ; /, boring pa- pilla ; h, eye-spots ; A-, germinal cells. X 680. (After Thomas, 188:-5, p. 283, Fig. 2.) of the latter, and are expelled from the host with the ffecal matter. Many of them become dried, and then undergo no further development; but others are naturally dropped in the water in marshes, or, being drojjped on dry ground, they are washed into water by the rain, or are carried to a more favourable position by the feet of animals pasturing or passing through the fields. After a longer or shorter period of incubation, which
Size: 1799px × 2779px
Photo credit: © The Bookworm Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, booksubjectveterin, bookyear1920
