The year-book of agriculture : or The annual of agricultural progress and discovery for 1855 and 1856. Exhibiting the most important discoveries and improvements in agricultural mechanics, agricultural chemistry, agricultural and horticultural botany, agricultural and economic geology, agricultural zoology, meteorology, &c. Together wth statistics of American growth and production, a list of recent agricultural publications, classified tables of American agricultural patents for 1854-55, a catalogue of fruits adapted to the different sections of the United States, &c. With a comprehensive review, by the author, of the progress of American and foreign agriculture for the year 1855. Illustratd with numerous engravings