1 62 ELEMENTS OF MAMMALIAN ANATOMY. 



meters of a two per cent, solution of Berlin blue in warm 

 water. 



The lymph glands (Fig. 78) of the cat are not nearly 

 so numerous as in man. The largest lymph gland is 

 the pancreas Aselli in the mesentery. It is considerably 

 flattened and about two centimeters long. A few other 

 very small lymphatic glands are also present in the 

 mesentery. The two largest lymph glands of the head 

 are just beneath the skin cephalad of the submaxillary 

 gland. On the side of the neck beneath the cephalo- 

 humeral muscle are three large lymph glands at the 

 cephalic border of the scapula. A small axillary gland 

 lies on the caudal side of the axillary vein beneath the 

 scapula. A single popliteal gland is in the popliteal 

 space, an inguinal gland lies on each side of the penis, 

 two or three iliac glands are near the origin of the 

 femoral artery, and a few small lumbar glands lie in 

 the lumbar region of the abdominal cavity. 



All parts of the body have communication with the 

 lymphatic vessels, which for the most part are so small 

 as to be invisible unless injected, when they are easily 

 recognized by their beaded appearance caused by the 

 numerous valves within them. There are two systems 

 of vessels in the head and extremities the superficial 

 and the deep. The former accompany mainly the super- 

 ficial veins, and the latter follow the deep veins. On the 

 outer aspect of the thoracic limb just beneath the skin 

 two vessels are present, which flow into the cervical 

 glands. They carry the lymph from the ball of the foot 

 and the skin of the foot and forearm. One or two deep 

 lymph-vessels are found accompanying the brachial vein 

 and artery, which convey the lymph from the bones and 

 muscles of the arm to the axillary gland. 



In the pelvic limb two or three superficial vessels are 



