| Vol. I, No. 2. | FEBRUARY, 1902. | { Whole Series, |
| { Vol. XI, No. 2. | ||
SPERMATID TRANSFORMATIONS
In Gryllus assimilis, with Special Reference to the Nebenkern.
(Thesis for the degree of Master of Arts.)
BY W. J. BAUMGARTNER.
With Plates II and III.
| I. | —[Methods.] |
| II. | —[Material.] |
| III. | —[Observations.] |
| (a) Nucleus. | |
| (b) Cytoplasmic Structures. | |
| 1. Nebenkern. | |
| 2. Acrosome. | |
| 3. Axial Filament. | |
| 4. Centrosome. | |
| 5. Cell Body. | |
| (c) The Spermatozoon. | |
| IV. | —[Comparison of Results.] |
| V. | —[Summary.] |
It is the object of these studies to follow carefully the spermatid transformations, and, if possible, to get a complete series of changes occurring therein. I do not pretend that I have as yet found all the stages, but in the present paper will publish observations made on Gryllus assimilis pertaining chiefly to the nebenkern, of which I have found some stages not previously described, as far as I know. I shall first describe my own findings, and then compare them with the results of others.