the air by symbiotic fixation. A minor experiment was added to determine the effect of quantities of organic matter on the location of nodules. In working on these problems it was found possible to obtain information of other points of interest...

of the ear and kernel which have a marked influence upon the yield. This is so universal that we have score cards which set forth the ideal type of ear and give certain values to the different characters. In general, the score cards are alike and all agree...