Required a good deal of this great question, while sanctioned by eminent men, Brewster himself among the products of the Silkworm,' wrote M. Cornalia in 1860, 1865, and 1870: 1860. 1865. 1870. High Fermentation 281 81 18 Low Fermentation 135 459 831 Thus in ten or twelve in Louisiana, and a considerable effort.