Volume XVII. September, igoo. No. I. 



JOURNAL 



OF 



MORPHOLOGY. 



THE SPERMATOGENESIS OF BATRACHOSEPS. 



Polymorphous Spermatogonia, Auxocytes, 

 AND Spermatocytes. 



GUSTAV EISEN, Ph.D. 



TABLE OF CONTENTS. , page 



I. Introductory 3 



II. Methods of Investig.a.tion 4 



Fixatives 4 



Stains c 



Optical Methods and Appliances 7 



III. Constituents of the Cell S 



General Divisions of Cell Structures S 



Cjiiosome S 



Kar)-osome or Nucleus 9 



Archosome or Centrosomal Structures 9 



Cytosome 9 



Cytoplasm 9 



Spheres 10 



Plasmosphere, Granosphere, and Hyalosphere. Meves's Idioplasm 10 



Positiofi of Spheres 13 



Cj-toplasmic Membrane or False Nuclear Membrane. Cell Wall.. 15 



Paracellular Bodies i6 



Karyosonie or Niicleus 17 



General Remarks 17 



I 



