230 



1899b. 

 1901. 



1895. 



1872. 

 1898. 

 1899. 

 1885. 

 1855. 

 1894. 

 1895. 



1897. 



1887. 

 1888. 

 1897. 

 1888. 

 1875. 

 1883. 

 1887. 

 1898. 

 1893. 

 I90O. 

 1897. 



1890. 



MONTGOMERY — A STUDY OP THE CHROMOSOMES 



Cytologic^. Studies, with especial Regard to the Morphology of the Nucleolus. Journ. Morph. 15. 



The Spermatogensis of Perlpatus (Peripatopsis) balfouri up to the Formation of the Spermatid. Zool. 



Jalirb. . „ ... 



Moore, J- E. S. : On the Structural Changes in the Reproductive Cells during the Spermatogenesis ol UM- 



mobranclis. Quart. Journ. micr. Sci. (N. S.) 88. 



Oelt.ach.or, J. : Beitrage zur Geschichte des Keimblaschens im Wirbelthiereie. Arch. mikr. Anat. 8. 



PADLMIER, F. C. : Chromatin Reduction in the Eemiptera. Anat. AnZ. 14. 



The Spermatogenesis of Anasa tristis. Journ. Morph. 15, supplement. 



BABL : Ueber Zelltheilung. Morph. Jahrb. 10. 



REMAK : Untersuchungen iiber die Entwicklung der Wirbelthiere. Berlin. 



Rtjckebt : Zur Elreifung bel Copepoden. Anat. Hefte, IV, 3. 



- TJeberdasSelbstandigbleiben der vaterlichen and mutterlichen Eernsubstanz wahrend der ersten Ent- 

 wicklung des hefruchtoten Cyclops-Hies. Arch. mikr. Anat. 45. 



SABASCHmKOJT, M. : Beitrage zur Eenntniss der Chromatin reduction in der Ovogenese vom Ascaris mega- 

 locephala bivalens. Bull. Soc. impSr. Nat. Moscow. 



Sohtjltzb, O. : Ueber die Earyokinese in den ersten Zellen des Axolotl. Sitzber. phys. med. Ges. Wurzburg. 



ScHWABZ, E. : Ueber emhryonale Zelltheilung. Mittheil. cmbryol. Inst. Wien. 



Sobotta : Die Reifun? und Befruchtung des Eies vom Ampbioxus lanceolatus. Arch. mikr. Anal, 50. 



ToBOK, L. : Die Theilung der rolhen Blutzellen bei Amphibien. Ibid., 32. 



Tbinohese: I primi momentidell' evoluzlone uei Molluschi. Atti R. Accad. Lincel. 



Van Bexedek, E. : Recherches sur la maturation de l'ceuf, la, fecondation et la division cellulaire. Gand. 



Van BeNEDEN and NEYT : Nouvelles recherches, etc. Bull. Acad. Roy. Belg. 14. 



Von Rath, O. : Zur Eenntniss der Spermatogenese vom Gryllotalpa vulgaris Latr. Arch. mikr. Anat. 40. 



Beitrlge zur Eenntniss der Spermatogenese vom Salamandra maculosa. Zeit. wiss. Zool. 57. 



WALLACE, Lotjise: The Accessory Chromosome in the Spider. Anat. An/,. 18. 



Wheeleb, W. M. : The Maturation, Fecundation and early Cleavage of Myzostoma glahrum Leuckart. 



Arch. deBiol. 15. 

 Zimmermann, K. W. : Ueber die Theilung der Plgmentzellen, etc. Arch. mikr. Anal, 3(i. 



Explanation ok the Plates. 



All figures have been drawn with the camera lucida at the level of the base or the microscope, with the homo- 

 geneous Immersion objective fr of Zeiss and ocular 4, tube length 180 mm. b the majority only the chromatin 



Lcleoll Chromosomes and true nucleoli together with the outline of the nucleus or cell body has been drawn ; and 



in the m6 , ori ty of figures representing lateral views of monaster stage., the mantle fibres, connective fibres, and 



centrosomes are the only structures shown beside the chromatin elements. For EucMstus mrioUHuB, however, the 



various structures are represented in detail, and this is also the case with some of the figures of various other species. 



Tie following abbreviations have been employed (for others not here mentioned the descriptive text must be 



referred to): 



O. Mb., cell membrane. 



N., true nucleolus (plasmosome). 



N.g, chromatin nucleolus (modified chromosome). 



N. Mh., nuclear membrane. 



Plate 1. 



EuchUtus variolarius, Figs. 1-19 



Fig. 1. Nucleus of spermatogonium, rest stage. 

 Figs. 2, 3. Pole views of spermatogone monasters. 



