In this state of mind it was obvious to consider in what way the sum remaining might be most usefully expended. Every species of provision was not equally nutritious or equally cheap. Her mind, active in the pursuit of knowledge and fertile of resources, had lately been engaged, in discussing with her father the best means of retaining health in a time of pestilence. On occasions, when the malignity of contagious diseases has been most signal, some individuals have escaped. For their safety they were doubtless indebted to some peculiarities in their constitution or habits. Their diet, their dress, their kind and degree of exercise, must somewhat have contributed to their exemption from the common destiny. These, perhaps, could be ascertained, and when known it was surely proper to conform to them. In discussing these ideas, Mr. Dudley introduced the mention of a Benedictine of Messina, who, during the prevalence of the plague in that city, was incessantly engaged in administering assistance to those who needed. Notwithstanding his perpetual hazards he retained perfect health, and was living thirty years after this event. During this period he fostered a tranquil, fearless, and benevolent spirit, and restricted his diet to water and polenta. Spices, and meats, and liquors, and all complexities of cookery, were utterly discarded. These facts now occurred to Constantia's reflections with new vividness, and led to interesting consequences. Polenta and hasty-pudding, or samp, are preparations of the same substance,--a substance which she needed not the experience of others to convince her was no less grateful than nutritive. Indian meal was procurable at ninety cents per bushel. By recollecting former experiments she knew that this quantity, with no accompaniment but salt, would supply wholesome and plentiful food for four months to one person[1]. The inference was palpable. Three persons were now to be supplied with food, and this supply could be furnished during four months at the trivial expense of three dollars. This expedient was at once so uncommon and so desirable, as to be regarded with temporary disbelief. She was inclined to suspect some latent error in her calculation. That a sum thus applied should suffice for the subsistence of a year, which in ordinary cases is expended in a few days, was scarcely credible. The more closely, however, the subject was examined, the more incontestably did this inference flow. The mode of preparation was simple and easy, and productive of the fewest toils and inconveniences. The attention of her Lucy was sufficient to this end, and the drudgery of marketing was wholly precluded. [1] See this useful fact explained and demonstrated in Count Rumford's Essays.