Block · one region of the page, as the scanner read it. It may hold a whole story, part of one, several, or an advertisement; stitching blocks into articles is the next step. Text is supplied OCR.
Page 28 · column 4 of 5 · from the scan, no model involved

healthy lawn, cut only the top one-third of the grass at each mowing. For instance, if your lawn is three inches high, , remove just the top inch. If you trim more than one-third at a time, you’ll cut the grass stems and protective tissues rather than the grass leaves.
See Concern, Page 18
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