Further, it has been found convenient to designate the leaf-bearing stem as a whole by the term shoot, so that the body may, as Sachs suggested, be primarily analysed into shoot and root.
Sachs was the first to formulate the theory that morphological differences are the expression of differences in material composition.
In the 14th century there were schools at Mainz, Strassburg, Frankfort, Wiirzburg, Zurich and Prague; in the 15th at Augsburg and Nuremberg, the last becoming in the following century, under Hans Sachs, the most famous of all.
At the same time there was a certain healthy aspect in the cultivation of the Meistergesang among the German middle classes of the 15th and 16th centuries; the Meistersinger poetry, if not great or even real poetry, had - especially in the hands of a poet like Hans Sachs - many germs of promise for the future.
Hans Sachs, on the other hand, sang the praises of the " Wittenberg Nightingale," and a considerable number of prominent men of letters accepted Luther as their guide - Zell and Bucer, in Strassburg, Eberlin in Ulm, Oecolampadius in Augsburg, Osiander and others in Nuremberg, Pellicanus in NOrdlingen.