The Commercial Products of the Vegetable Kingdom / Considered in Their Various Uses to Man and in Their Relation to the Arts and Manufactures; Forming a Practical Treatise & Handbook of Reference for the Colonist, Manufacturer, Merchant, and Consumer, on the Cultivation, Preparation for Shipment, and Commercial Value, &c. of the Various Substances Obtained From Trees and Plants, Entering into the Husbandry of Tropical and Sub-tropical Regions, &c.

by P. L. Simmonds

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
Phosphates	9.04

These substances were for the most part insoluble in earth, and must have been dissolved during the growth of the crop.