Second, all of my life I have made a profound study of Geognosy and geotectonic geology.
"The Desert Valley"
Jackson Gregory
We may here appropriately notice a remarkable feature in the Geognosy of the earth's surface from Lake Huron to the Gulf of St. Lawrence.
"The Falls of Niagara and Other Famous Cataracts"
George W. Holley
Although the outward relations of life, and an irresistible impulse toward knowledge of various kinds, have led me to occupy myself for many years - and apparently exclusively - with separate branches of science, as, for instance, with descriptive botany, Geognosy, chemistry, astronomical determinations of position, and terrestrial magnetism, in order that I might the better prepare myself for the extensive travels in which I was desirous of engaging, the actual object of my studies has nevertheless been of a higher character.
"COSMOS: A Sketch of the Physical Description of the Universe, Vol. 1"
Alexander von Humboldt