356 ROBERT H. BOWEN. 



formed in connection with the Golgi apparatus, and has nothing 

 whatever to do with spindle fibers or other cell parts. It is to be 

 considered as much a characteristic part of the sperm, having a 

 definite morphological value, as are the nucleus and mitochondria. 

 3. The idiosome plus the Golgi apparatus of vertebrates and 

 pulmonates is to be considered as the homologue of the scattered 

 Golgi bodies of insects, the idiosomic substance and the Golgi 

 material being in some way intimately related, possibly in the 

 sense of an essentially single cell organ of duplex chemical nature. 



LITERATURE CITED. 

 Benda, C. 



'91 Neue Mittheilungen ueber die Entwicklung der Genitaldruesen und 

 ueber die Metamorphose der Samenzellen (Histogenese der Spermato- 

 zoon). Verhandl. d. Physiol. Ges. Berlin, Jahrg. 1891 bis 1892. 

 Boesenberg, H. 



'05 Beitraege zur Kenntnis der Spermatogenese bei den Arachnoiden. 



Zool. Jahrb., Anat. u. Ontog., Bd. 21. 

 Bowen, R. H. 



'19 New Methods for the Analysis of Cytoplasmic Structures. Proc. Soc. 



Exp. Biol. and Med., Vol. 17. 

 Deineka, D. 



'12 Der Netzapparat von Golgi in einegen Epithel- und Bindegewebszellen 

 waehrend der Ruhe und waehrend der Teilung derselben. Anat. Anz., 

 Bd. 41. 

 Duesberg, J. 



'10 Nouvelles recherches sur 1'appareil mitochondrial des cellules seminales. 



Arch. f. Zellforsch., Bd. 6. 

 '15 Recherches cytologiques sur le fecondation des Ascidiens et sur leur 



developpement. Cam. Inst. of Washington. Cont. to Embry., No. 8. 

 '20 Cytoplasmic Structures in the Seminal Epithelium of the Opossum. 



Ibid., No. 28. 

 Faust, E. C. 



'13 Size Dimorphism in Adult Spermatozoa of Anasa tristis. BIOL. BULL., 



Vol. 25. 

 Gatenby, J. B. 



'17 The Cytoplasmic Inclusions of the Germ Cells. Part I. Lepidoptera. 

 Quart. Jour. Mic. Sci., N.S., No. 247, Vol. 62. 



'18 Cytoplasmic Inclusions. Part III. The Spermatogenesis of Some Other 

 Pulmonates. Ibid., N.S., No. 250, Vol. 63. 



'iga Cytoplasmic Inclusions. Part IV. Notes on the Dimorphic Sperma- 

 tozoa of Paludina and the Giant Germ-nurse Cells of Testacella and 

 Helix. Ibid., N.S., No. 252, Vol. 63. 



Cytoplasmic Inclusions. Part V. The Gametogenesis and Early De- 

 velopment of Limnaa stagnalis with Special Reference to the Golgi 

 Apparatus and the Mitochondria. Ibid., N.S., No. 252, Vol. 63. 



