Langenhan—The Arsenical Solutions. 
193 
most serious Attention. The Properties however of mild and 
simple Medicines, have occasionally been the Objects of his In¬ 
vestigation; and his Enquiries in that Line have convinced him, 
that among the many trifling and insignificant Articles, which are 
still retained in the Materia Medica, there are some valuable Medi¬ 
cines, that are not in the Reputation they are justly entitled to; 
a few Examples of which, it will give him Pleasure to communicate 
in some future Publication. In the meantime, as the Idea of a 
Poison seems to be so strongly connected with that of Arsenic, it 
will be found very difficult to separate them in the Mind, whenever 
that Term is named; and therefore to avoid as much as possible, 
such a disagreeable Association of Ideas, in the Practice of the 
healing Art, the Medicine now about to be introduced to the Notice 
of the Public,, will be distinguished by the Name of Mineral 
Solution. 
Advertisement, (p. XI) 
All Cases beginning with the Words In-Patient, and Out-Patient, 
belong to the Infirmary; the Rest were chiefly such as the Author 
gave Advice to at his own House. 
When the Mineral Solution is ordered thrice a Day, six o’clock 
in the Morning, two in the Afternoon, and ten o’clock in the 
Evening; and when twice a Day, ten in the Morning, and ten in the 
Evening, are to be considered as the medicinal Hours, or Periods 
for its Administration. 
Unless the Solution be ordered in some particular Vehicle it is 
always to be understood, that Adults are to take in a Tea cupful of 
Water, and the Doses for Children are to be given in the same 
Vehicle, proportionately diminished. 
Every Medicine prescribed by a general title, without a Refer¬ 
ence, is to be found in the London Dispensatory. 
Contents, (p. 1.) 
Sect. I. 
(pp. 1-40) 
Sect. II. 
(pp. 41-61) 
Sect. III. 
(pp. 62-64) 
Cases of Agues, cured by the Mineral Solution, 
with Observations. 
Cases of Agues, cured by the Assistance of the 
Peruvian Bark, after Failure from the Mineral 
Solution, with observations. 
Cases of Agues, suspended, releived and not re- 
leived, by the Mineral Solution, from the irregular 
Attendance of Patients, with Observations. 
13—S. A. L. 
