Horváth Géza (szerk.): A Magyar Természettudományi Múzeum évkönyve 8. (Budapest 1910)
Soós, L.: A Helix arbustorum hím csirasejtjének fejlődése
336 D' L. KOÓS Fig. 4. Spermatogonium, late prophase. BOUIN'S picrie-formoi, HEIDENHAIN. Figs. 5 —6. Spermatogonia, metaphase. FLEMMING'S chrom-osmic-acetic (weaken, HEIDENHAIN. Fig. 7. Spermatogonium, late metaphase. BOUIN'S picric-formol, HEIDENHAIN. Figs. 8 — 9. Besting primary spermatocytes. BOUIN'S picric-formol, HEIDENHAIN. Figs. 10—11. Besting primary spermatocytes. BOÜIN'S picric-formol, HEIDENHAIN , preceded by anilin-blue. Fig. 12. Primary spermatocyte (synapsis, leptotene nucleus). BOUIN'S picricformol, HEIDENHAIN. Fig. 13. Primary spermatocyte (synapsis, pachytene nucleus). BOUIN'S picricformol, HEIDENHAIN. Fig. 14. Primary spermatocyte, bouquet. BOUIN'S picric-formol, HEIDENHAIN. PLATE VIII. Fig. 1. Primary spermatocyte, splitting of the chromosomes, beginning of the scattering of the chromosones. BOUIN'S picric-formol, HEIDENHAIN. Fig. 2. Primary spermatocyte, later stage of the scattering of the chromosomes. FLEMMING'S weaker solution, HEIDENHAIN. Fig. 3. Primary spermatocyte, still later stage of the scattering of the chromosomes. BOUIN'S picric-formol, HEIDENHAIN. Fig. 4. Primary spermatocyte, intercalated resting stage. FLEMMING'S weaker solution, HEIDENHAIN. Fig. 5. Primary spermatocyte, later stage. FLEMMING'S weaker solution, HEIDENHAIN. Fig. 6. Primary spermatocyte, beginning of the formation of the chromosomes. FLEMMING'S stronger solution, HEIDENHAIN. Fig. 7. Primary spermatocyte, iormation of the chromosomes, centrosomes appeared. MAYER'S picric-nitric acid, BENDAS'S crystal-violet. Fig. 8. The same as Fig. 7., the centrosomes pass toward the poles. FLEMMING'S weaker solution, HEIDENHAIN. Fig. 9. Primary spermatocyte with definitive chromosomes. BOUIN'S picricformol, HEIDENHAIN. PLATE IX. Figs. 1—4. Primary spermatocytes, showing the formation of the chromosomes. Figs. 1—2. and 4.: BOUIN'S picric-formol, HEIDENHAIN , preceded by anilinblue ; Fig. 3. : FLEMMING'S weaker solution, HEIDENHAIN. Fig. 5. Primary spermatocyte, the nuclear membrane dissolved. BOUIN'S picric-formol, HEIDENHAIN. Figs. 6 —8. Primary spermatocytes, metaphase. BOUIN'S picric-formol, HEIDENHAIN. Fig. 9. Primary spermatocyte, formation of the spindle. PERÉNYI'S fluid» BENDA'S crystal-violet. Fig. 10. Primary spermatocyte, anaphase. FLEMMING'S weaker solution, HEIDENHAIN. Fig. 11. Primary spermatocyte, anaphase, two spindles. BOUIN'S picric-formol, HEIDENHAIN.
