Potatoe Starch

-Tliero is a n grentdiflercnce in the nutritivo vulue ot the scvcrnl sorts of potatoes. The Rv. John Mitcholl, in hia rccently pubüshed and higlily interesting work, "Notos from Over Sea," snys thut Professor Johnson in a lecturo at the llighland Cuttle-sliow, stuted tlmt tho kind called 'cups,' contnin three tons of starcli to the acre; red dons one and a half tons; whit dons, Uvo und a huif. Thi-s singlo statement, obs.Tves Mr. Milchell, may ehow the farmer ihttl the labors of tlie man of scietico ure nol proiitless to him.