Show E hNot h- h Not Hard to Estimate Contents of Haystack Estimating the amount of hay In a n stack seems on the face tace of ot It to be largely a matter of ot guesswork but federal experts have worked out a method of figuring which has been found to come within 5 ii per cent of accuracy on all aU occasions The method Is based on the shape of the stack as the deciding factor An overall measurement Is taken that Is from the ground on one side over the top to the ground on the theother theother other othet side In the case of n a roundtop round roundtop top stack for tor instance six forty hundredths hundredths hundredths hun- hun of ot the width Is subtracted from two hundredths of the overall emU measurement and this result Is multiplied by the tile width and length of the stack With the cubic foot capacity of the stack It Is then a n simple matter to divide by the number num ber her of cubic feet per ton of the various varl- varl arlous ous grains which go Into the stack |