3ülï 



of tlie scapula. It is 3'ounger than the remaining part of the slioiilder- 

 blade ; nevertheless it has already calcified to some degree and 

 forms bone of the spina. 



The cartilage has been cut in three different cross sections, as 

 represented in the figures 8, 9 and JO. Fig. 8 illustrates a section 

 through the .scapula above the place of attachment of the processus 

 acromialis. In the raesencliyma, which extends from the processus 

 acromialis tow^ards the margo vertebralis, lies the cartilage which 

 is already partly calcified. In fig. 9 we give a section at a lower 

 level. 



The processus acromialis attaches itself at this level to the planum 

 scapulae. Here also we observe the cartilage of the spine, independ- 

 ent of the remaining cartilage of the shoulder-blade. Fig. JO shows 

 a section through the scapula at the level of the lowest place of 



Acr. 



PI. Sc. 

 Fig. 9. Homo 90 m.m. Scapula trans- 

 versal. Acr. = Processus acromialis. 

 PL Sc. = Planum scapulae. 



PL Sc. 

 Fig. 10. 90 m.m. Scapula 

 transversal. C. — cartilage of 

 the spine. PL Sc. = Planum 

 scapulae. 



attachment of the s|)ina. The young cartilage, which forms the spina, 

 has here been cut over a large area. The cartilage will be seen to 



