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EXTRACTS FROM FOREIGN JOURNALS. 
tagious and infectious nature of the disease. The symptoms are 
spoken of principally drawing the attention to the irregular range 
of the temperature, to the peculiarities presented by the cutaneous 
eruption and to the diarrhoea, which cannot be regarded as a con¬ 
stant symptom. In the part treating of the Pathology, careful 
notice is given of the lesions found on the intestinal canal. Specific 
lesions are grouped by the author as follows : 
“ 1st. A brownish yellow infiltrate, very like diptheretic mem¬ 
brane, involving only the superficial layers of the mucosu, but 
frequently very extensive. On Section it extends for a couple of 
lines into the mucosa, and cannot be separated without removing 
portions of that membrane. 
“ 2d. Small greyish elevated spots, varying in size, from a 
pin’s head to a split pea, seated directly upon and involving the 
mucosa to a variable depth ; frequently the edges of the project¬ 
ing parts overlay the mucous membrane. Others, older perhaps, 
are seen in process of separation, as small central sloughs, divided 
by narrow grooves from the mucosa, which may even be elevated 
about them. 
“ 3d. Patches ranging in size from that of a three-penny bit to 
a penny or larger, circular, flattened, internally adhering to the 
mucosa, yellowish-grey in color, sometimes dark in the centre, and 
usually presenting a concentric arrangement resembling a flat¬ 
tened out rupia crust, or the cross section of a calculus. Some¬ 
times these plagues are avoided, and frequently two or three have 
coalesced. Their concentric arrangement is their most peculiar 
feature, and is best marked in the larger ones, wdiere a central 
part can often be seen from which the process appears to have 
extended in zones. Some of the smaller ones differ from these, 
the surface being uniform and more prominent. On section the 
patches show a yellowish white color throughout, and involve the 
coats of the bowel to a variable depth ; some being confined to 
the upper part of the mucosa, others extending through its whole 
thickness; while others, again, involve the submucosa and muscu 
lar coats. They are firm and tenacious, not friable, resisting the 
scraping of a knife better than the mucous membrane itself. 
“ 4th. Uniform involvement of large areas of the intestine, 
