169 



Illustration. 



iv, 11. 



in, 1-4. 

 in, 9. 

 in, 10. 

 iv, 8. 

 iv, 5. 

 in, 10, 17. 

 in, 13, 15. 

 in, 5, 6. 

 IV, 3, 4. 

 in, 7. 

 iv, 9, 10. 

 iv, 1, 2. 

 iv, 6, 7. 



vii, 3; xviii, 91. 



vi, 9. 



VII, 5; xviii, 56, 105. 

 xvii, 14. 



VI, 8; XVIII, 1. 

 XVII, 13. 



vi, 7; xviii, 98. 



XV, 12, 13; xviii, 33; xix, 127. 

 xv, 15; xviii, 34. 

 XV, 14. 



I, 3. 

 xvii, 15. 

 1,4. 

 1,2. 



1,1. 

 1,6. 



xvn, 9. 



VII, 1. 



vi, 10; xviii, 90. 

 vii, 4; xix, 120. 

 Vii, 2; xviii, 14, 134. 



xiv, 16; xix, 126. 

 xiv, 17; xviii, 61, 111. 



xvn, 7: xxi, 18. 



