LICHEN ISLANDICUS. ORD. LIV. Algee: 805 
and others, who bear testimony of its efficacy in most of the other 
complaints above mentioned. Dr. Herz says, that since he first. 
used the Lichen in dysentery, he found it so succéssful that he 
never had eccasion to employ any other remedy; it must be 
observed, however, that cathartics and emetics were always re- 
peatedly administered before he had ftecourse to the “alee to 
which he also occasionally added opium. 
Dr. Crichton informs us,‘ that during seveni months residence 
at Vienna he had frequent opportunities of seeing the Lichen 
Islandicus tried in phthisis pulmonalis at the General Hospital, and 
confesses, ig that it by no means answered the expectation he had 
formed of it.” He adds, however, “ From what I have seen, I am 
fully convinced in my own mind, that there are only two species 
of this disease where this sort of Lichen promises a cure. The two 
species I hint at, are the phthisis hemoptoica, and the phthisis 
pituitosa, or mucosa. In several cases of these I have seen the 
patients so far get the better of their complaints as to be dismissed 
the hospital cured but whether they remained long so or not 
I cannot take upon me to say.” That this Lichen strengthens the 
digestive powers, and proves extremely nutritious, ‘there can be 
no doubt; but the great medicinal, efficacy attributed to it at 
Vienna will not readily be credited at London. It is commonly 
given in the form of a decoction; an ounce and a half of the 
Lichen being boiled in a quart of milk. Of this a tea-cupful i is 
directed to.be drank frequently in the course of the day. If milk 
disagree with the stomach, a simple decoction of the Lichen in 
water is to be used, Care ought to be taken that it be boiled over 
a slow fire, and not longer than a quarter of an hour, | © 
i See Medical Journal, vol. 10, p. 233. 
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