Sentence:  The long-continued good result of the <WSD>bonings</WSD> of the Cheshire farmers, effects which are said to be perceivable during the continuance of a lease, demonstrates that at least one known fertilizer is useful not merely for a season; and, moreover, as the enlightened Cheshire landlords have been long wont even to aid their tenantry in the requisite outlay for the bones, this further seems to prove that the land is not finally rendered less valuable by the more bountiful, and consequently more exhausting crops of grass that it is thus enabled to produce. 
Meaning of the word marked with <WSD> tags:  The fertilization of a field with bone meal.