130 PORTABLE, TEMPORARY, AND MOVEABLE STRUCTURES. 



tobacco, tobacco paper, or tobacco liquor, from the tobacconist's, or 

 tobacco of home growth, for destroying insects. Quassia chips for the 

 same purposes. Sulphur in a state of powder, for destroying the 

 mildew, and for sublimation to destroy the red spider. Soft soap, tar, 

 gum, glue, &c., for suffocating the scale, and for coating over the eggs 

 of insects to prevent their hatching. Gunpowder, for bruising and 

 mixing with tar to deter insects by its smell. Bird-lime, for entrapping 

 birds. Baskets, hampers, boxes, and cases of various kinds, for pack- 

 ing vegetables and fruits, and sending them to a distance. A cabinet 

 or case for the office, or for the seed-room, for containing seeds; 

 another for bulbs, if collection of tulips, &c., are grown. Canvas for 

 bags, which may be used as a substitute for boxes for containing 

 seeds. Paper of different kinds, twine and cord, cotton, wool, hay, 

 fern-leaves, the male catkins of the beech, or sweet chestnut, hair, 

 charcoal, dust, and the chaff of buck-wheat, to aid in packing, fruit. 

 Straw, reeds, tan, common sand, pure white or silver sand, oyster- 

 shells as coverings to the holes in bottoms of pots ; pieces of freestone, 

 for mixing with peat soil used in growing heaths ; leaves and leaf- 

 mould, grafting- wax, grafting-clay, common paint, and probably various 

 other articles which we cannot recall to mind, might be enumerated 

 under this head But it is scarcely necessary to observe, that no gar- 

 dener ought to confine himself to those implements of his art which 

 have hitherto been in use, whether as regards the construction of par- 

 ticular instruments or utensils, or their number and kinds, for par- 

 ticular operations. Let him at all times think for himself; and if he 

 can devise any tool, instrument, or utensil for performing any opera- 

 tion better than those hitherto in use, let him not fail to do so. Such 

 is the variety of operations required in extensive gardens, where a 

 great many different kinds of culture are carried on, that this power ol 

 invention in the gardener becomes essentially requisite, and is, in fact, 

 called forth by the circumstances in which he is placed. 



CHAPTER VII. 

 STRUCTURES AND EDIFICES OF HORTICULTURE. 



STRUCTURES and edifices are required in horticulture for the more per- 

 fect cultivation of hardy plants, or for bringing them earlier to perfec- 

 tion; for the protection of exotics that will not endure our winters 

 in the open air ; for preserving and keeping horticultural articles ; for 

 the enclosure and defence of gardens, and for gardeners' dwellings. 



Portable, Temporary, and Movealle Structures. 



Portable structures are such as can be readily moved about by 

 hand, such as the common hand-glass, cloches, wicker-work, pro- 



