If one were to boil this whole process down, it is the system developed to produce the metal type that would prove to be the most innovative. Many of the processes used to print these books generally existed in one form or another, but the metal type is a stroke of genius as nothing like it had existed before.
Soil Conservation. Soil conservation is a combination of all methods of management and land use that safeguard the soil against depletion or deterioration by natural or human-induced factors.
Mix 2 to 3 inches of organic material into the top 6 inches of soil using a spade. This will improve the quality of dry, sandy soil. Use organic material such as peat moss, compost or composted manure. Organic matter increases the ability of soil to absorb and hold moisture and attracts worms.