of discovering in the other: still the important practical fact afforded by the history of both is the same, that disease having reached a certain point, the pain diminishes; and having advanced still further entirely disappears. 6. While the pain lessens or ceases as the abdominal affection advances, the purging, on the other hand, continues, often it increases. Purging, succeeding to constipation and to pain, and remaining after the subsidence of the pain, affords an infallible indication of abdominal disease. 7. Together with these decisive signs, which alone are abundantly sufficient to enable us to ascertain the presence of the affection, we have an additional and an exceedingly valuable guide in the peculiar state of the tongue. In these abdominal cases, the tongue is preternaturally red. Sometimes this increased redness is of a bright and vivid colour, and pervades the whole tongue; at others, it is confined to the edges or to the tip, and it is usually remarkably apparent in the latter. While thus vividly red, the body is often loaded with fur; the colour of the fur is often of a dirty-white or greyish colour; but, perhaps, while the edges and the tip are thus intensely red, the most usual colour observed on its body is that of a dirty yellow. In these cases, the papillæ appear much enlarged, and are seen prominent through the fur, vividly red. In this condition of the tongue it always remains moist for some time, and it is not attended with urgent thirst; but, as the intestinal disease advances, the tongue gradually becomes less vividly red and more dry, and as these changes go on, the lips and teeth often become sordid. Instead of being from the commencement of a vivid redness, the colour of the tongue, in other cases, is of a darker and duller tint; there is less fur upon the body, and that which covers it is of a dirtier and darker tinge; this state of the tongue is always attended with greater thirst: it is apt to become more and sooner dry, and, at the same time, the lips and teeth become more and sooner sordid. 8. In the kind and degree of abdominal affection of which we are now treating, the abdomen is sometimes harder than natural, but it often remains nearly as soft as in health through the greater part of the disease. 9. Of the conditions of the pulse in this affection it is important to take particular notice, on account of the total absence of any striking or _apparently_ distinctive character. It is neither remarkably slow nor very quick; neither unusually hard, nor strong, nor sharp, nor weak, nor intermittent, nor in any degree irregular; its common range is from 80 to 100, beyond which it seldom rises in the acutest cases, until near the termination of the disease; and it is generally soft.