sentences:  He improved the yield of some of the poorest lands by his knowledge of chemistry, introduced modern agricultural implements, and, by giving his laborers better than the accustomed wages and caring for their moral and material welfare, soon assembled a colony of well to do and contented people.He also introduced looms, which, although imperfect, served to weave from native wool the coarse cloth worn by the peasantry.From the first years of his country life he agitated the project of a canal to water the barren plain surrounding Santiago, which had been begun some time before, but was abandoned.