A. Vaughan Jennings — Geology of Bad Nauheim. 351 



It is a matter of great difficulty to obtain information on the spot, 

 as the geological map and its description are old and out of print ; 

 while the excellent guide, written in 1888 by Herr Bergrath Otto 

 Weiss ^ and Dr. Groedel, contains in its geological chapter some 

 views as to the order of succession of strata which later research 

 has corrected, and is insufficiently illustrated to give a clear idea of 

 structural features. This is my excuse for attempting to give some 

 sort of account of the district, though an imperfect one. For many 

 of the details I am of course indebted to the older works mentioned, 

 at the end, but on the other hand a considerable part of the following 

 notes are from personal observation, though made only on short 

 excursions under conditions of a necessarily limited activity. 



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Fig. 2. — Geological Sketch-map of country around Bad Nauheim. 

 B. Blattersaudstein. 0. Orthoceras-schiefer. 



D. Devonian series. Sp. Spiriferen-sandstein. 



T. Taunus-quarzit. 



II. General Physiography. 



The old village of Bad Nauheim, and the new town which has grown 



up beside it round the springs, lie at the foot of the Johannisberg. 



The hill, rising 858 feet above the sea and about 390 feet 



above the plain, is wooded at the top and on the northern slopes ; 



1 Herr Weiss has been identified with the history of the locality from the earliest 

 days of organized baths, and knows more than anyone else as to the various borings. 

 He was most courteously willing to give all information, but unfortunately his illness 

 prevented my profiting by his store of knowledge, except in a few minutes interview 

 when I was on the point of leaving. 



