Marx (Karlsbad) to Engels (in Ramsgate) 8th September 1875
As a second-year patient I have been promoted in the hierarchythe springs. Last year my sources of supply were Theresien-brunn (41° R), Marktbrunn (39°) and Mühlbrunn (43.6°), while I
only took a glass of Sprudel twice. This year, from the second week
on, they have been Felsenquelle (one glass a day) (45° R),
Bernardsbrunn (53.8°) (two glasses) and Sprudel (two glasses)
59°-60° R, making five glasses of hot every morning, on top of which
come one cold Schlossbrunn on rising and one at bedtime.
According to Prof. Ferdinand Ragsky’s analysis, Sprudel water
consists of:
In 16 ounces=7680 g.
Sulphate of potash 1.2564
Sulphate of soda 18.2160
Chloride of sodium 7.9156
Carbonate of soda 10.4593
Carbonate of lime 2.2870
Carbonate of magnesia 0.9523
Carbonate of strontium 0.0061
Carbonate of ferric oxide 0.0215
Carbonate of manganic oxide 0.0046
Phosphate of clay 0.0030
Phosphate of lime 0.0015
Fluoride of potassium 0.0276
Silica 0.5590
Total of fixed constituents 41.7099
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