THE STOMACH AND INTESTINE. 



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.rig. 215. Illustrations of models, made after Born's wax-plate reconstruction 

 method, of glandular structures and duodenal villi of the human intestine ; X Io : -'> 

 Fundus gland; b, three pyloric glands; the one at the left is a simple tubular gland, 

 the middle one a branched tubulo-alveolar gland ; the one at the right a typical pyloric 

 gland of the branched tubular variety ; <-, leaf-shaped villi and crypts of Lieberkiihn of 

 the duodenum ; d, crypts of Lieberkiihn of the large intestine. 

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