358 DETAILED STNTHESIS. 



1089. LIEBERKUHN'S GLANDS, called also the tubular 

 glands, are minute straight tubes, in immense numbers, 

 throughout the Second Stomach, lined with cells (see 

 Plate 29) that secrete and pour into the intestinal canal 

 a fluid called intestinal juice. 



1090. THE USE OF THE INTESTINAL JUICE appears to 

 be to change starch into sugar, in which condition this 

 calorific element can pass into the Blood. 



FIG. 237. 1091. STARCH KERNELS (Fig. 



237, magnified) are too large to pass 

 into the Blood, and if they did would 

 delay its circulation in the capillaries : 

 hence, starch must undergo a trans- 

 formation; if in the body, vital pow- 

 er will be required. Any process of 

 cooking, therefore, or any other prepa- 

 ration that assists in the transformation, is an advantage. 

 The continued application of heat is one of the best and 

 cheapest means for effecting the desired end. All kinds 

 of grain or bread stuffs, cooked for a long time, with a 

 slow fire, are improved. One of the best ways of pre- 

 paring wheat is to take it in the kernel and cook it for 

 hours, in water nearly at the boiling point. Nurses fre- 

 quently tie up flour in a cloth and boil it for several 

 hours, and grate up the inside for the use of delicate chil- 

 dren. The starch is thus changed to a great extent. 

 One of the best things for laxity of the second stomach 

 is parched corn ; it was carried by the Indians as a cor- 

 rective of the effect of bad water. 



1092. PETER'S GLANDS are minute enclosed sacs (g, 

 Fig. 238), containing granular matter, just beneath the 

 mucous membrane, in which there will be a depression, 

 /*, over the sac, owing to the absence of tubular or Lie- 

 berkiihn's glands. 



1093. THE MODE OF ACTION OR USE OF PETER'S 



1089. What are f 1090. What is - ? 1091. What is said of ? What are the 

 effects of cooking starch? Describe Fig. 237. 1092. Describe . 1093. What is ? 



