Giovanni Targioni Tozzetti
Giovanni Targioni Tozzetti was an Italian naturalist. He was supervisor of the Orto Botanico di Firenze in Florence succeeded by Saverio Manetti. Apparently met Caso Umbria in the 1730s. After the age of catastrophic, to give strong evidence on geomorphological activities occurring on earth, he postulated that the irregular courses of the rivers
depended on the nature of rocks through which they
flow. The regions of massive and resistant rocks
maintain deep and narrow courses whereas
broad and meandering courses are developed in the
regions of soft and less resistant rocks. Thus, this
concept gives the glimpse of differential erosion.
