ance of the same k i d and scored in the same manner. It is also gratifying to note the efficacy of the sorting and classifying effect of the three terms in the case of the best and poorest students. From studying the data as given in the preceding tables, it will be noticed that in the middle half of students there is no definite trend as is shown in the upper and lower quarters. One must consider that in the upper and lower quarters students may move in only one direction, while in the case of the second and third there are two borders from which students may move into or out of the quarter. Also, the range of scores in these two quarters is smaller than that of the first and fourth. A statistical study of the sigma differences might be valuable but, on the other hand, the student is actually placed and given a percentage or letter grade from his relative score, and regardless of the outcome, the instructor will judge him accordmg to his score. To substantiate the above statement, the individual performance of the students was examined, and the following information obtained. Of all the students tested, nine placed in the upper quarter in all tests, eight placed in the upper quarter in three tests, and eleven placed in the upper quarter in a t least two tests, making a total of 84% which performed as predicted in one-half or more of their work. A similar condition existed in the case of the students in the lowest quarter, of which five placed poorest in all tests, thirteen placed poorest in three tests, and four placed poorest in two, making a total of 67% which performed as predicted in one-half or more of their work. A different result was obtained with the middle half. Taking the third quarter only, two placed third in all tests, five placed third in three tests, and seventeen placed third in two, making a total of only 50% which performed as predicted in one-half or more of their work. The data likewise show that prediction is possible only with the best and poorest students. In conclusion one may repeat the statement that it seems to be possible to predict the performance of the best and of the poorest students. Likewise, it would seem to be possible then to do much with these students through separating them from the others. It also appears doubtful whether any sectioning of the students of the second and third quarters would be profitable.
Farm Industry Book Printed on Cornstalk Paper. Paper made from cornstalks will be used in the printing of a book on farm products in industry soon to be issued. The author. Dr. George M. Rommel, agricultural expert, investigated the problem of waste materials in agriculture. As a demonstration of the use of one of the most plentiful of farm by-products he conceived the idea of printing his book on a new paper made from cornstalks which are usually wasted.-Sckce Service
