THE KANSAS UNIVERSITY SCIENCE BULLETIN.
(Vol. I, No. 2—February, 1902.)
(Whole Series, Vol. XI, No. 2.)
CONTENTS:
Spermatid Transformations in Gryllus assimilis,
with Special Reference to the Nebenkern.—W. J. Baumgartner.
PUBLISHED BY THE UNIVERSITY,
Lawrence, Kan.
Price of this number, 30 cents.
Entered at the post-office in Lawrence as second-class matter.[47]
Kansas University Science Bulletin.
| 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 spermatidtransformations, and, if possible, to get a complete seriesof changes occurring therein. I do not pretend that I have asyet found all the stages, but in the present paper will publishobservations made on Gryllus assimilis pertaining chiefly to thenebenkern, of which I have found some stages not previouslydescribed, as far as I know. I shall first describe my own findings,and then compare them with the results of others.
While