342 THK I:KIXU-I;KNITAL SYSTEM, THE ADRENALS, J;TC. 



bifurcate at acute angles, just before entering the kidney. Most of 

 the tubes so formed open into the collecting-tube ; a few, however, 



Fig. 223. 



i^tSS VSSfft&&--!s& 



-a-*" 



Various preparations from the testi- 



I. Various stages of the spermatozoa ; from testis of .Rawa tempornria. After Neumann. 

 II. Section from testis of Kaiia eseulenta (Hartnack, Oc. I, Syst. 7). G. H. 

 a Thin connective-tissue capsule. 

 b Trabeculae. 

 c and d Seminiferous tubss. 



III. From testis of Rana temporaria. After Neumann. 



x Hounded epithelium of seminiferous tubes. 

 y Sjxjnnatoblasts. 



IV. Surface view of seminiferous tube of Rann /<'I,,/H,>:H-;,I. After Neumann. 



a Granular protoplasmic feet of spenuatoblasts.. 

 l> Rounded epit Helium. 



end blindly in the mesorchium (I, f)- The course of the 1'asa efferent id 

 from the testis is first inwards, within the mesorchium ; on reaching 

 the kidney they curve dorsal wards between that organ and the' 



