190 
MR. TOYNBEE ON THE ORGANIZATION AND NUTRITION 
Fig. 5. A plexus of blood-vessels situated between the synovial membrane and the 
circumference of the articular cartilage ; from the same specimen as fig. 3. 
Figs. 6, 7, 8, 9 and 10. Diagrams of the inferior extremity of the os femoris, to show 
the relations of the blood-vessels with the articular cartilage, and the 
osseous nucleus of the epiphysis, during the different periods of their de- 
velopment. 
Fig. 11. Vessels situated between the attached synovial membrane and the articular 
cartilage, at the point where the ligamentum teres is inserted in the head 
of the os femoris of the human subject, between the third and fourth 
months of foetal life. (Magnified thirty diameters.) 
A. The surface of the articular cartilage. 
B. The vessels between the articular cartilage and the synovial mem- 
brane. 
C. The surface to which the ligamentum teres was attached. 
D. The vein. 
E. The artery. 
PLATE XIV. 
Fig. 1. Vessels similarly situated to those of fig. 11. Plate XIII. but between the 
seventh and eighth months of foetal life. (Magnified thirty diameters.) 
A. The surface of the articular cartilage. 
B. The vessels between the articular cartilage and the synovial mem- 
brane. 
C. The surface to which the ligamentum teres was attached. 
Fig. 2. Vessels situated between the synovial membrane and the articular cartilage 
on the circumference of the condyle of the os femoris of the human foetus, 
at the period of birth. In one part the arteries are observed to terminate 
in a single vessel from which the veins take their origin ; in another part 
the arteries communicate with the veins by means of loops. (Magnified 
thirty diameters.) 
A. The surface of the articular cartilage. 
B. The vessels between the attached synovial membrane and the arti- 
cular cartilage. 
C. The reflexed synovial membrane. 
D. The lateral surface of the condyle of the femur. 
PLATE XV. 
Fig. 1. Vessels situated between the attached synovial membrane and the articular 
cartilage at the circumference of the head of the metatarsal bone of the 
human subject. 
