YALE AGRICULTURAL LECTURES. 73 



The old oaks of the forests and lawns of England are worth a 

 voyage across the Atlantic to see. No language can give an 

 idea of their beauty and grandeur. The English elm is best for 

 narrow ways, the American for broad. The former, though 

 not so graceful a tree, throws out its leaves earlier and holds 

 them later, being in foliage from three to six weeks longer. 

 The elm can speak for itself, for it is the only tree that every 

 body knows. The tulip-tree, a rapid grower, with fine flowers 

 and fruit; the sycamore; the Norway maple, standing the wind 

 better than any other tree ; the red, white, and rock maples, 

 the last the best ; the beech, with its showy blossoms and sweet 

 nuts, good for pasture, because never struck by lightning nor 

 browsed upon by cattle ; the linden, and hickory, easy to trans 

 plant if the tendency to depend on the tap-root be corrected 

 in the nursery; the sassafras, hornbeam, hop hornbeam, the 

 locust, the horse-chestnut, and black-walnut, all have their ad 

 vantages. Two or three black cherry-trees along the outside 

 of a cherry orchard, will draw the insects to themselves. The 

 plane, or buttonwood, makes a conspicuous figure in all grounds, 

 and was valued by the Greeks and Romans above all other 

 trees. Birches are admirable, too, for the beauty of their bark, 

 leaves, and branches. 



Professor JOHXSOX gave us a capital lecture on the nutrition 

 of animals. The food of man in his best development, says the 

 Professor, is not exclusively vegetable ; not but that from veg 

 etables he could get all the substances which he needs for his 

 sustenance, but in the form of flesh they are much more con 

 densed. 



The animal? which exhibit the most intense power of mus 

 cular and nervous force are carnivorous. For the sake of flesh 

 and milk as food, for wool as clothing, and for the useful labor 

 which the ox and horse furnish, the farmer seeks to convert 

 vegetable into animal produce. By the aid of cattle, not only 

 can man convert the grains, fruits, and esculent roots into a 

 more concentrated and vigorous diet, but he can manufacture 

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