. Nature study and life. Nature study. ELEMEXTAKY EORESTRY 381. Fi ;. Relation of Hvmus to Growth of Corn I. oliv subsoil: 2. s^^me \^':th fertilizer: ;. same, with humus. i,Fho:og:r3ph by C. L, Goodrich) which proves that forest loam is 11 per cent \'egetable matter. The soil from the barren tield ciid not burn anol, on weighing-, we found oci grams, g"i\-ing onl\" i per cent organic matter. Put the burned samples a wa\- in dr\' bottles, of clear glass and simi- lar si;e and shape, for the school collection. These are valuable speci- mens that tell a long story. Compare again as to
. Nature study and life. Nature study. ELEMEXTAKY EORESTRY 381. Fi ;. Relation of Hvmus to Growth of Corn I. oliv subsoil: 2. s^^me \^':th fertilizer: ;. same, with humus. i,Fho:og:r3ph by C. L, Goodrich) which proves that forest loam is 11 per cent \'egetable matter. The soil from the barren tield ciid not burn anol, on weighing-, we found oci grams, g"i\-ing onl\" i per cent organic matter. Put the burned samples a wa\- in dr\' bottles, of clear glass and simi- lar si;e and shape, for the school collection. These are valuable speci- mens that tell a long story. Compare again as to color and composi- tion, so far as this can be done bv the unaided eve and bv feeling with the ringers. Are the samples not more alike than before the\' were burned .' Have a few of the class nil a series of iiowerpots or with different kinds of soil, as shown in Fig. i;;. and in them plant corn or other seeds. This work mav be varied in regard to soils and seeds planted. The plants should stand together in one of the schoolroom windows, where the\' may receive equal light and care. Observe and possiblv measure the growth from time to time. ^^'e have thus found that vegetable matter is the chief constituent that makes the soil black and rich ; and we know that this comes from falling leaves and twigs and from decaving roots of the forest. How long does it take the trees to make rich loam ? Ti the main, this is a ques- tion that the children will not find time to answer. Thev. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Hodge, Clifton Fremont, 1859-. Boston and London, Ginn & Co.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectnatures, bookyear1902
