tal annual,
also with pink flowers, native of America, which rises to the height
of six feet.

3. _N. fruticosa_, or shrubby tobacco, an ornamental evergreen
shrub, native of China, with pink blossoms, which grows to about
three feet.

4. _N. undulata_, or _suaveolens_, sweet-scented or New Holland
tobacco, a green house perennial, native of New South Wales, with
white flowers, which is only two feet high.

5. _N. rustica_.--The common green or English tobacco, an annual
plant, native of America, producing white flowers, which seldom
grows higher than three feet.

6. _N. paniculata_, or panicled tobacco, an annual plant bearing
greenish yellow flowers, native of Peru, rises to the height of
three feet.

7. _N. glutinosa_, or clammy-leaved tobacco, also an annual plant,
native of Peru, growing to the height of four feet, with bright
scarlet flowers.

8. _N. plumbaginifolia_, or curled-leaved tobacco, an ornamental
deciduous annual, native of America, with white blossoms, rising to
the height of two feet.

9. _N. pusilla_, or primrose-leaved tobacco, an ornamental deciduous
biennial, with white flowers, native of Vera Cruz, rising to three
feet.

10. _N. quadrivalvis_, four-valved, or Missouri tobacco, an
ornamental annual, native of North America, with white flowers,
seldom growing higher than two feet.

11. _N. nana_, or rocky mount tobacco, a curious greenhouse annual,
native of North America, with white blossoms, rising only three
inches high.

12. _N. Langsdorffii_, or Langsdorff's tobacco, an ornamental
annual, with greenish yellow flowers, native of Chili, reaching five
feet high.

13. _N. cerinthoides_, or honey-wort tobacco, an ornamental annual,
with greenish yellow flowers, native country unknown.

14. _N. repanda_, or Havanna tobacco, an annual with white flowers,
native of Cuba, rising two feet high.

There are a few species, natives of the Province of Buenos Ayres,
which may be particularised. _N. bonariensis_, having white flowers;
_N. glauca_, yellowish green flowers; _N. longiflora_, white
flowers; and _N. viscosa_, pink flowers.

The important mineral substances presented in Havanna tobacco,
examined by Hertung, are in 100 parts of ashes,

Salts of potash 34.15
Salts of lime 51.38
Magnesia 4.09