. An elementary laboratory study in soils . Fig. 5. Thejouter paper case in place ready for the paraffin, for outer case, tin cup, bunsen burner, and glass stirring rod. Paper bottom 11. After a few hours loosen the paraffin case from the glass. (This can usuallv be done b}' turning the case over so that the glass will be up, and tappiiig the glass lightly. Otherwise pour a little hot water upon the glass.) See Fig. 7. 12? With a one-eighth inch glass or wooden rod make a hole 2^i inches deep near the center of the soil. 13. Pour water very slowly into this hole until the openings in the soil
. An elementary laboratory study in soils . Fig. 5. Thejouter paper case in place ready for the paraffin, for outer case, tin cup, bunsen burner, and glass stirring rod. Paper bottom 11. After a few hours loosen the paraffin case from the glass. (This can usuallv be done b}' turning the case over so that the glass will be up, and tappiiig the glass lightly. Otherwise pour a little hot water upon the glass.) See Fig. 7. 12? With a one-eighth inch glass or wooden rod make a hole 2^i inches deep near the center of the soil. 13. Pour water very slowly into this hole until the openings in the soil are tlioroughly filled and the v/ater stands even with the top of the soil. 14. With a "glass rod or other dull tool remove to the two-quart pan as much of the content of the paper case as you can without mar- riuii' the inner s\u"face of the case.
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Photo credit: © The Bookworm Collection / Alamy / Afripics
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectsoils, bookyear1908
