. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. A Mother Cell from the Coch, iritli tin-re Spermatozoa still enclosed in their Cells of Developement. of the membrane of the cells of develope- ment, the spermatozoa get into the in- terior of the cysts (fig- 332.), where they lie together often in a great number, but never * Lehrbuch tier Physiol. 3d edit. § 18. S. 27. in regular fascicular groups. Finally, this cyst also gets dissolved, without, however, Fig. A Mother Cell from the Cock, u-ith Spermatozoa free in its interior. having changed its shape in any rema
. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. A Mother Cell from the Coch, iritli tin-re Spermatozoa still enclosed in their Cells of Developement. of the membrane of the cells of develope- ment, the spermatozoa get into the in- terior of the cysts (fig- 332.), where they lie together often in a great number, but never * Lehrbuch tier Physiol. 3d edit. § 18. S. 27. in regular fascicular groups. Finally, this cyst also gets dissolved, without, however, Fig. A Mother Cell from the Cock, u-ith Spermatozoa free in its interior. having changed its shape in any remarkable way previously. The spermatozoa common to each cyst, however, remain together for a time, being connected by means of the tough albuminous contents of the mother cell. Thus, at least, we feel inclined to explain the occurrence of irregular groups of sperma- tozoa, which, kept together by one common cement, not unfrequently occur in the semen of the cock. According to our observation, the develope- nient of the spermatozoa of the woodpecker and of the pigeon takes place in precisely the same manner; and this may be said likewise of singing birds.* The cells of developement of the latter are however still more rarely to be met with free, and are perhaps always en- closed by mother cells. The number of the enclosed cells is generally very considerable (fig. 333.). Fig. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Todd, Robert Bentley, 1809-1860. London, Sherwood, Gilbert, and Piper
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