726 THE JOURNAL OF GEOLOGY. 
firmed this view, as I succeeded in finding fossils which showed 
that these masses possessed in the main the same faunal peculiar- 
ities as the cliffs which Kaufmann had described farther west. 
Exotic and Helvetian series compared.—Vhe finding of fossils 
added rather than otherwise to the difficulty of understanding 
the cliffs because it marked more sharply than before the contrast 
between the exotic or cliff series on the one hand, and the normal 
or Helvetian series on the other. A brief tabular summary 
== Ke = Sketch-map of North Switzerland show- 
¥ = ——_ ing the distribution of the cliffs and exotic 
Onn ety — = 
efe- Ss blocks. 
of the cliff strata (including those in the exotic blocks and 
the Freiburg-Chablais Alps) will bring out more clearly this 
distinction : 
SUMMARY OF THE CLIFF STRATA. 
Trias. 
1. Lower Muschelkalk, black limestone w. Spirigera trigonella, 
Schl.; Aulacothyris angusta, Schl.; Coenothyris vulgaris, etc. Not 
known in Switzerland outside of exotic series. 
2. Diplopora limestone, gray to yellow, streaked with yellow 
dolomitic portions w. Dzplopora annulata, Schfl; D. macrostoma 
Giimb, etc. Not known in Switzerland outside of exotic series. 
3. Rauhwacke and Gypsum.—Found in Helvetian series also. 
