vi CONTENTS. 
PAGE 
e. The Development of the Ovaries and Ova in the 
Pupa and Young Imago - - - - 698 
J. The Development of the Utero-Vaginal Tube and 
its Appendages, and of the Oviduct and Parovaria 703 
g. On the Nature of Ova and the Relations of the Germ 
to the Vitellus - - - - - 707 
hk. On the Changes which occur in the Germinal 
Vesicle and Free Nuclear Formation - - 711 
z, On the Development of the Germ-Ova in the Epi- 
thelial Cells of the Parovarium - - - 718 
k. Some General Remarks on the Similarity of the 
Generative Functions in Insects and Trematodes - 721 
Sec. 5. The External Generative Organs - - - - 724 
a. General Considerations and Nomenclature of the 
Abdominal Segments - - - - 724 
6. Development of the External Organs in Insects 
Generally - - - - - - 730 
c. Comparative Morphology of the External Generative 
Organs - - - - - - 732 
d. The External Generative Organs of the Male Blow- 
Ely) - - : - - - 736 
e. The External Generative Organs of the Female 
Blow-Fly - - - - - - 745 
BIBLIOGRAPHIES.—148 to 155, p. 351; 156 to 160, p. 352; 161 to 169, 
p. 389 ; 170 to 179, p. 433; 180 to 186, p. 434; 187 to 191, p. 479; 
192 to 195, p. 496; 196 to 200, p. 500; 201 to 217, p. 501 ; 218 to 231, 
p- 502; 282 to 247, p. 503; 248 to 252, p. 504; 253 to 258, p. 539; 
259 to 263, p. 582 ; 264 to 277, p. 583 ; 278 to 287, p. 596; 288 to 300, 
p- 603 ; 301 to 305, p. 631 ; 306 to 313, p. 635; 314 to 315, p. 656; 316 
to 325, p.658 ; 326 to 334, p. 659 ; 335 to 338, p. 678 ; 339 to 348, p. 684 ; 
349 to 354, p. 685 ; 355 to 358, p. 693 ; 359 to 368, p. 712; 369, p. 723 ; 
370 to 376, p. 725. 
