The last column _C_ represents the average of three direct beaker elutriations according to the method of Osborne. The differences which these figures show are found to be due to imperfect separation of the finer grades from the coarser and even when the various fractions separated by the Schöne method are subjected to beaker elutriation and the portions separated from them added to the grades to which they properly belong the Schöne elutriator was found to effect far less exact separations than the beaker method. Samples of prairie soil from Mercer County, Ill., not boiled, were examined by the two methods with the following results: Schöne-Orth Beaker elutriation. method. Above 0.25 millimeter 0.76 0.62 0.25–0.05 millimeter 11.25 2.42 0.05–0.01 millimeter 52.65 43.58 0.01 millimeter and less deposited 14.84 31.58 Clay 4.44 5.81 Loss on ignition 14.49 14.49 ————— ————— 98.43 98.50 In this case it is seen that Schöne’s method varies considerably from the beaker method and if the beaker method be regarded as correct the Schöne method is evidently less reliable. In the next table are given the data of the examination of brick clay from North Haven, Conn., by the two methods. BRICK CLAY FROM NORTH HAVEN, CONN. Schöne-Orth elutriation. Beaker method. Above 0.25 millimeter 1.02 1.02 0.25–0.05 millimeter 3.91 0.76 0.05–0.01 millimeter 29.63 20.95 0.01 millimeter and less 58.58 71.01 Loss on ignition 6.60 6.60 ————— —————— 99.74 100.34 The failure of the Schöne method to give the results obtained by the beaker method is ascribed to the fact that it is impossible for the current of the strength used to disintegrate the clay and further that the particles after they are once separated tend to coalesce by the currents produced by the elutriating process. =221. The Berlin-Schöne Method.=—Osborne has also made a study of the Schöne method as modified by the Bodenlaboratorium of Berlin. The directions for the analysis by this laboratory method are as follows: