THE ORGANS OF GENERATION. 81 



expulsion of the urine from the urethra Is assisted by a small 

 muscle, called the accelerator urinae, which clears the passage 

 completely. The mare has, likewise, the power of ejecting the 

 last portion of the urine, by inverting repeatedly the nyraphas 

 and clitoris. — Ed.] 



CHAP. XVIII. 



THE ORGANS OF GENERATION. 



[The Organs of Generation are intimately connected with the 

 parts last mentioned ; they are in both sexes very complicated ; 

 but in this place a general description must suffice. 



In the male we find glands to secrete the prolific fluid, and 

 an Instrument to convey It to the necessary receptacle in the 

 female ; the first are called the testes, the other is the penis. 



The Testes or Testicles are two glandular bodies, suspended 

 between the thighs, and contained within a bag called the scro- 

 tum. They are of an oval shape, flattened at the sides, and 

 somewhat about the size of a hen's eofo- when full srown. To 

 the upper and posterior part of the testicle Is attached the vas 

 deferens ; and to the upper and anterior end Is joined the sper- 

 matic cord, by which the gland Is suspended, and retained in Its 

 situation. 



The substance of the testicle Is soft, and of a light brown 

 colour. At the upper part of the testicle is found what Is called 

 the Epididymis, which is composed principally of a white tube 

 containing semen, colled up to that extent that when unwound 

 It has been found several yards In length. The epididymis is 

 larger at each extremity than In the middle. These extremities 

 are severally called the globus major and minor. The former, 

 is situated towards the front, and the smaller globe is found 

 towards the back part of the testicle ; from the larger globe, 

 Avhich is commonly termed the nut, and is indeed about the size 

 of a small walnut, the vas deferens arises. 



The Spermatic Cord, by which the testicle Is suspended. Is 

 composed of numerous parts, although not by any means bulky 

 In their btructure. There are, in the first place, no less than 

 four distinct coverings : one of which, called the cremaster. Is 

 muscular, and has the power by Its contraction of drawing up 

 the testicle. The other parts of the cord consist of arteries, 

 veins, nerves, and the vas deferens. 



The arteries are two In number ; a small one, belonolns: to 

 the cord ; and a larger one, the spermatic, supplying the testicle 

 Itself, and from which the semen is secreted ; from the latter the 



G 



