Sentence:  I began to think of my horse. He, however, like an old campaigner, had taken good care of himself. I found him paying assiduous attention to the <WSD>crib</WSD> of Indian corn, and dexterously drawing forth and munching the ears that protruded between the bars. 
Meaning of the word marked with <WSD> tags:  A bin for drying or storing grain, as with a corn crib.