76 pages matching editions:LCCNsf98085015 in this book
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acre action agricultural amount animals appear ARNOLD bark become branches breed bushels butter called cattle cell cent changes cheese College condition consider contain continued corn cost cows crop cultivation early effect entire equal exhibition experiments fact fair farm farmers feed feet fertilizers five flow force four fruit gauge give ground growing growth guano half horses hundred important improvement inches increase interest keep kind labor land leaves less manufacture manure material matter means milk nature never nitrogen observations phosphate phosphoric acid pigs plants pounds practical present produce profitable quantity question raised regard roots season seems sheep society soil species success supply taken tion trees usually whole wood