INDEX. 
589 
Fresh-water Polype, nearly allied in appearance to a plant, ii. 6ll. 
where found, 6 12. description and manners, 6 12, 613. how 
propagated, 6l4. wonderful reproductive power, 615. exem- 
plified, 6l6, 617. 
Frigate, obliges the booby to be his caterer, i. 557. Dampier’s ac- 
count of them— description, 558. nest, eggs, and young, 559. 
esteemed for their feathers, 560. 
Frog, its spawn traced from a black globule to a perfect frog, ii. 
17, 18. mode of feeding, 19. adhere to the backs of fishes — 
become torpid in severe cold, 20. are very tenacious of life — 
Edible frog described — sold in the markets abroad — method of 
preserving them during the winter, 21. Bullfrog, the largest 
of the whole tribe — its loud croaking —where found, 22. anec- 
dote of its agility, 23. Tree frog, a singular animal — manner 
of catching its prey, 24. singular manners — account of two of 
these animals tamed by Dr. Townson, 24, 25. struggle be- 
tween a tree frog and a snake, 27. the respiration of frogs de- 
scribed, 28. 
G. 
Gad-fly, dreaded by our cattle, ii. 452. deposits its eggs in their 
backs, 453. terror excited by these insects — the egg and maggot, 
account of, 454. Bots, what — number of marks in a hide a cri- 
terion of its goodness, 455. Horse gad-fly, history of, 456. 
sometimes found in the stomach of the ass, 459. the different 
species of this genus make their attack on different animals — 
sheep tormented by them, 46t. The Zimb of Mr. Bruce sup- 
posed to belong to this genus, 462. account of, 463, 464. 
Galena. See Lead. 
Gall-insect found on the oak leaf, ii. 385. gall-nut described — 
opening through which the fly escapes, 386. best galls, from 
whence brought, 387- most plants pierced by a species of gall- 
insect, 388. 
Gannet described, i. 561. where found— account of one killed at 
Chandour near Mountsbay in Cornwall, 562. immense numbers 
