171 



Illustration. 



xvi, 13; -xix, 128. 



xvi, 9. 

 xvn, 6. 

 xvn, 5. 



xvi, 15, 16; xix, 129. 



XVI, 2. 



xvi, 22; xxi, 17. 

 xvi, 5. 



xvi, 10; xvin, 113. 

 XVI, 24,25; xix, 117, 131; xxi, 14. 

 xvn, 1, 2. 

 xvi, 1; xxi, 12. 



x, 2; xvm, 39. 



x, 7; xvin, 41. 



x, 5; xvin, 78. 



X, 9; xvm, 60, 100. 



X, 11. 



x, 10; xvin, 79; xx, 11. 



x, 4; xvm, 69. 



x, 3; x, xvm, 33. 



X, 8; xvm, 42. 



x, 6; XVIII, 40. 



X, 12; xvm, 24, 101. 



x, 1; xvm, 77; xx, 10. 



