PUBLISHED WEDNESDAYS AND SATURDAYS BY 7 OHM FFNNn \7« c. uir n c-td r c-t 7 iANo - ®9> HIGH.STRESI, BETWEEN SECOND AND THIRD STREETS, PHILADELPHIA. [No. 65, of Vol. lII.] LETTERS, EARL OF DUN DONALD, ON MAKING BREAD FROM POTATOES A VARIETY of other business has put it oui of my power ro have made all the experi ments I could have wifljed, so as to leave nothing to others but lo follow the directions and hints fuggeited to them. Imp re (Ted, however, with the importance of a fnbjeifl, which has for its ob ject the more plentiful and cheaper supplying mankind, particularly the lower clafles, with food, I venture here to throw out fonie ideas on the fitnefs of the potatoe, and its farina, to cer tain uses not yet mentioned :—To which will be added a statement of the value of an acre of po tatoes, manufactured as recommended, and com pared with the value of an acre of wheat.— Whence it will not be difficult to forefee the ef fect, that the more general cultivation of pota toes, especially by cottagers, and manufacturers residing in the country, will have, in keeping down the price of provisions, adding to the ge neral comfort of individuals, and in tending to the increase oj population, which every where thrives belt where food is to be had in abun dance ; making true the old Roman faying, Sine Baccho et Cerere frige: Venus. Experiments have been made, with the finer part of thepotatoe-powder, by myfelfand others, to fubltitute it as a light, nutritive food, for lick, tender, or convalescent persons, instead of fag'> or falup ; which it very much refenibles, in the fine clear jelly, or vegetable mucilage, it forms, when mixed in a proper manner with boiling wa ter. It may be taken with wine, milk, or broth. —If found, on further trials, to be equally nu tritive and reitorative, as I believe it to be, it will prove a molt valuable addition to the sup plies, which government have been so careful, of late years, in fending to sea, for the use of our seamen. 1 here is reason to believe, that it will not be fubjed:, like wheat-flour, to fpuil, or to be de ftroyed by infeifts ; and that it may bepreferved found, for a length of time, in the warmed cli mate. The reasons which lead me to form the above opinion, are, that it is homogeneous, and docs not con fill; at two diftintf, and opposite fubftau ces, as wheat-flour does : In which, when it be gins to spoil, there may be supposed a chemical action-os the one part on the other. Heat will thereby be let loose, the original arrangement of the parts will be altered, and the flour will no longer be fit to be used for food, exclusive of the final! infetiis, always found in bread, or in flour, when in a decayed, or decaying (late. It is probable, that potatoe-powder will not be lia ble to thole inconveniences, from the reasons al ready given. Potatoe-powder does not occupy near the space of an equal weight of wheat-flour. It is capable of being made fully dry, by exposure to air. It does not imbibe or absorb nioifture, as other meal er flour does in datnp weather. It is extremely cold to ]he touch ; or, in other wordsf a power ful abftra