Potatoes--a Valuable Business

A ís. Macrea oí loronto (Uut.) contributes the following to the Toledo Commercial : My attention is called to your crop report ot' the llth inst, in wliich it is stated that potatoes are abundant. Will you perinit me to point out a very remunerative and abiding outlet for this esculent when it is abundant and cheap ? By a very facile lavatory and granulating procese, potatoes are converted into flour, or as it is called in England, fariña. This potato flour is readily saleable in Great Britaiu, by the hundreds of thousands tona at a time, at an average valué there of $100 a ton. I do not know the price of potatoes in your district, but here they are selling at $10 a ton, leaving a very large acope for proñt, between the bulb and the flour. A Canadian gentleman traveled last week 400 railes to see rué about potato flour, and is so well satisfled with the prospeots, that he is eroing largely into the manufacture. Such inforiuation is at the service of your readers. The Postoffice Department has receive a letter from a flrm in Chicago complaining that 6 cents additional postage was charged them on a postal card sent to their address, on the face of which, in the left hand corner, were written the words, " Sept. 13, 1875." As many complaints of this character are received at the department, the following reply to the above letter is furnished for the information of the public : Gentlemen In answer to your letter of the 15th instant I have to state that by a ruling of thisdeparttnent anytbing whatever, except an address written or priuted upon the side of a postal card intcnded for the address, renders BUch card unmailable, and the same eannot be legally forwarded unless prepaid at the letter rate - 3 cents. But if by inadvertance it reaches its des'ination without such prepayment, it is chargeable with doublé the letter rates undei the provisión of section 152, Postal laws, edition of 1873. In acoordance with the said ruling the card submitted was rendered subject to letter postale by the writting of the date on the side designed for the address, and laving been forwarded without the prejayuient of such postage, it becaine liaile to doublé the letter rates - 6 cents, n collecting the above, however, the )ostmaster at Chicago Bhould have delucted the one cent origiually paid for he card.