=210. Statement of the Analysis.=—Schloesing in his original paper[144] recommends that the analysis be commenced with 1,000 grams of soil. The data of the analysis and the method of arrangement are illustrated by the following example. The physical examination of the earth having been completed as above, the results can be tabulated as follows: taken, 1,000 grams of dry earth, digested in water, thoroughly worked by hand, sifted, and passed through the meshes of the sieve by a stream of water, the meshes having a diameter of one millimeter. Dry residue, fifty-five grams, contains Pebbles │ 21 grams. „ Gravel │ 33 „ „ Organic débris│ 1 „ Sifted earth by difference, 1000 − 55 = │ 945 „ │———— │1000 grams. Humidity of the homogeneous paste, twenty-seven per cent. Then 945 grams of the dry sifted earth correspond to (945)/(1.00 − .27) = 1294.5 of paste. The analysis, therefore, should be carried on upon this weight or some aliquot part say 0.01 thereof; _viz._, 12.945 grams. 12.945 grams of the │1st.—Coarse sand dry │Noncalcareous 3.05 grams. paste after successive│giving by treatment │sand kneadings and │with acid and │ decantations furnish │ignition. │ dry: │ │ „ │ „ │Calcareous 1.19 „ │ │sand „ │ „ │Organic 0.08 „ │ │débris │2nd.—Fine elements decanted with the water, „ │their weight calculated by difference, 9.45 − │4.32 = 5.13 grams. _Treatment of the Fine Elements._—Treated by nitric acid until a complete decomposition of the calcareous matter is secured, filtered, washed, the residual matter collected upon a filter, and the liquid received in a two-liter flask, a little ammonia added, allowed to digest, the flask filled with distilled water, left for twenty-four hours at repose, and decanted: