The word hereof is actually not a legal term. Its meaning in court documents is no different from its ordinary dictionary definition -- Merriam-Webester defines hereof as meaning of this.. It's one of those words used by lawyers and nobody else.
The variety of cabbage commonly known as the Flat Dutch, shown in Fig. 6, of which there are many strains, is a moderately long-season variety. The head is very solid and flat; it measures about 12 inches across and 8 inches deep, and weighs from 8 to 12 pounds.
The Late Drumhead and the Autumn King are other varieties of the same group. The American Savoy cabbage, a typical head of which is shown in Fig. 8, is the standard variety of Savoy cabbage in this country. The plant is a moderately large grower, and forms a head that will average from 6 to 10 pounds in weight.