374 DR. M. WATSON ON THE [May 1, 



of clearness in description, be divided into two parts — (a) the part 

 extending from its commencement as far as the base of the cUtoris, 

 and (6) a part extending from base to apex of the clitoris. The 

 first part measures li inch in length, and possesses walls of consider- 

 able thickness, these being provided with a thick layer of circularly 

 arranged muscular fibres. "Where this portion of the common canal 

 becomes continuous with the second portion its floor is pierced by 

 the ducts of two large glands. 



Cowpers Glands.— These, which appear to correspond to Cowper's 

 glands as figured by Daubenton in the male Hycena striata, lie one 

 on either side of the common canal, the base of the gland being op- 

 posite the junction of the urinary and genital passages, whilst from 

 its apex the duct above mentioned is given off. Each gland is pyri- 

 form, somewhat flattened, and measures 1| inch in length, and | of 

 an inch in greatest breadth. "When cut into, the gland is seen to be 

 solid, and recalls to mind the appearance of a section of salivary gland. 

 The second portion of the urino-genital canal extends along the 

 under surface of the clitoris, lying along the lower border of the 

 united corpora cavernosa of that body, to which it is attached, and 

 finally pierces the glans clitoridis by an opening of small size, which 

 might readily be mistaken for the termination of the male urethra. 

 The walls of this portion of the canal are much thinner than those 

 of its first part, and consist merely of mucous membrane, with a 

 substratum of connective tissue. The mucous membrane of both 

 parts of the common canal is extremely distensible, and is thrown 

 into longitudinal rugae, which are quite continuous at the os with 

 those previously described in the uterus. 



Clitoris. — The clitoris measures 6| inches in length from root to 

 ■ tip. It is composed of two corpora cavernosa, which form the bulk 

 of the organ. Corpora spongiosa, however, are not absent, although 

 they are altogether subordinate in size of the corpora cavernosa. 

 Each corpus cavernosum is a thick laterally compressed band 

 of erectile tissue enclosed in a fibrous capsule, and, except at the 

 root, where it is attached to the corresponding ischium and forms the 

 crus, is in contact with its fellow of the opposite side along the 

 whole length of the clitoris. At the extremity of the clitoris the 

 two corpora cavernosa terminate abruptly and form the upper hard 

 portion of the glans, the lower portion of that body being formed 

 by the walls of the urino-genital canal. 



The corpora spongiosa are two in number, but of small size. 

 Each is pyriform, and measures about an inch in length. E:\ch is 

 situated below and in contact with the corresponding crus clitoridis, 

 and has its narrow end directed forwards. This extremity ter- 

 minates in a vein of considerable size, which runs forward and 

 unites with its fellow of the opposite side. The single vessel 

 is then continued onward, lying in contact with the lower border 

 of the united corpora cavernosa, and above the urino-genital canal 

 as far as the glans. Its mode of termination I could not make 

 out ; but in all probability it terminates in branches which enter the 

 corpora cavernosa ; at least, many branches were given off from it to 



