Xll CONTENTS. 



Pan 



Weevil-Galls aSo 



Weevil-gall of tho hawthorn 389 



Anbury ou the roots of cabbages, &c 390 



Semi-galls of Aphides ib, 



Muuntain-ash leaf-galU ib. 



Poplar semi-galls of the cottony aphi 392 



Leaf-rolling Aphides 394 



Leaf of the currant-bush thus altered 395 



Shoot of the lime-tree thus convoluted 396 



Pseudo-Galls 397 



Pseudo-gall of tho bramble ib. 



— hawthorn 398 



Scotch flr 399 



CHAPTER XX. 



Animal-Galls 40I 



Enthusiasm or M. Reaumur for study . '. ' 402 



Ovipositor of Breeze-flies 403 



Opinion of Mr. Bracey Clark on its use . . . . 404 



Etl'ects produced by the fly upon caltle 405 



Observations of Linnmus on the Rein deer Breeze-fly . . 406 



Opinion of Kirby and Spence 407 



Observations of Mr. B. Clark 408 



Hatching of the egg 410 



Bumps, or Wurblcs. thence produced . . , . . 412 



Communication of tho grub with the air .... 413 



Final cause of these bumps . . . . . . 414 



Tho Zimb(Breezo-fly?.) of Africa 415 



Human Breeze-fly ib. 



Grub-parasite in the Garden-Snail . 416 



Caterpillar Parasite in the same , . . . ,1b. 



