“The increased growth of the potato, not only in these kingdoms, but almost in every civilised part of the globe, has so added to its importance, that any information respecting it has become valuable. With the exception of wheat and rice, it is now certainly the vegetable most employed as the food of man; and it is probable that the period is at no great distance, when its extensive use will even place it before those which have hitherto been considered the chief staples of life. The effect of the unlimited extent to which its cultivation may be carried, on the human race, must be a subject of deep interest to the political economist. The extension of population will be as unbounded as the production of food, which is capable of being produced in very small space, and with great facility; and the increased number of inhabitants of the earth will necessarily induce changes, not only in the political systems, but in all the artificial relations of civilised life. How far such changes may conduce to or increase the happiness of mankind, is very problematical, more especially when it is considered, that since the potato, when in cultivation, is very liable to injury from casualties of season, and that it is not at present known how to keep it in store for use beyond a few months, a general failure of the year’s crop, whenever it shall have become the chief or sole support of a country, must inevitably lead to all the misery of famine, more dreadful in proportion to the numbers exposed to its ravages.”