An elementary laboratory study in soils elementarylabora01jeff Year: 1908 Fig. 4. Cube of soil ready to be encased, and the with .spalula, werdcr and loose .soil. d lioard \o be used foi- the outer case, 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 o
An elementary laboratory study in soils elementarylabora01jeff Year: 1908 Fig. 4. Cube of soil ready to be encased, and the with .spalula, werdcr and loose .soil. d lioard \o be used foi- the outer case, 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.
Size: 1928px × 1037px
Photo credit: © Bookend / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: archive, book, drawing, historical, history, illustration, image, page, picture, print, reference, vintage
