."> 12 Directions for placing the Plates of the Nineteenth Volume. 



Tam. 27.- 



28, 



> Structure of Hydnora Africana to face page 238 



30.. 



.31. Hymenopterous Insects and their nests 260 



32, Spiranthes cernua 264 



3.}. Structure of Myriapoda 302 



54. ] 



> Sapria Himalayana 348 



36. Thottea grandijlora 348 



37. Asiphonia piperiformis " 348 



38. Sarcophyte sanguinea 348 



39. Thismia Brunonis t 343 



40. Myriapoda Chilopoda # 440 



41. South American Cohoptera 476 



42. Neuration of the wings of Butterflies 486 



END OF THE NINETEENTH VOLUME, 



PRINTED BT RICHARD AND JOHN E. TAYLOR, RED LION COURT 



FLEET STREET. 



