Sentence:  "Earth."—We have to examine its nature in connection with its products; this is the object of a technologic science, derived from mineralogy, and to which we give the name <WSD>"Agrology</WSD>". 
Meaning of the word marked with <WSD> tags:  A subdiscipline of agronomy (the science of utilizing animals, plants, and soils) and of soil science which addresses the influence of edaphic (soil-related) conditions on crop production for optimizing it. (from mid 19th c.)