6o Dr. W. C. Williamson on 



SPECIAL INDEX 



TO THE DESCRIPTIONS OF 



MORPHOLOGICAL AND HISTOLOGICAL STRUCTURES 



DEALT WITH IN THE MEMOIRS. 



FAMILY CALAMARI^. Endlicher, 

 GENUS CALAMITE8. Suckow. 

 Calamites. Arthropitus. Calamodendron. Calamopitus. Cala- 

 modendroxylon. Calamodendrophloyos. Calamodendrea. Auctorum. 



AXIAL TISSUES. 

 Medulla. 



A.— p. 479, Fig. 9b, C.N. 9. Fig. lob, C.N. 11. p. 488, Fig. 20b, 

 C.N. 36. Fig. 24b, see C.N. 39. p. 487, Fig. 15b, C.N. 63. 

 p. 490, Fig. 23, C.N. 42. Fig. 24b, C.N. 39. 



Primary Medulla. 

 A, — p. 480. 

 I.— p. 322, Fig. 8, C.N. I. Fig. 9, C.N. 2. Fig. 10. 



Absorhtion of Medulla. 



A. — p. 479-80, Fig. loa, C.N. 11. Fig. 24a, C.N. 39. p. 489, Fig. 



2ia, C.N. 35. p. 492-3-4- 

 I.— p. 322-3, Fig. ID, C.N. 4. Fig. II, see C.N. 1085. Fig. 12, 

 C.N. 12. Fig. 13, C.N. 9. 



Nodal Medullary Diaphragm. 



A. — p. 480, Fig. ion, C.N. 11. 

 I.— p. 324, Fig. 15, C.N. 80. 



Xylem. 



In Transverse Sections. 



A.— p. 480, Fig. 9f, C.N. 9. p. 487, Fig. 14, see C.N. 908. p. 488, 



Fig 19, C.N. 35. Fig20, C.N. 36. 

 L— p. 323. 



T.— p. 159-60, Fig. 3, C.N. 52. p. 164, Fig. 13, C.N. 53. 

 X. — Figs. 2 and 3. 



Longitudinal Sections. 



A.— p. 480, Fig. 2 and 5, Fig. 25, C.N. 37. 

 X.— Fig. 2. 



At Internodes. 



A.— p. 483, Fig. lof, C.N. II. p. 490, Fig. 23g., C.N. 42. Fig. 24g. 



C.N. 39. 

 T.-p. 165. 

 X.— Figs. 2-3. 



