82 Reviews — Heers Priinceval World of Switzerland. 
Bivalves and Gasteropods, its Corals, Sponges, Sea-urchins, and 
Pentacrinites, down, down to the Globigerina ooze. 
An interesting feature of the work is the introduction of a series 
of maps giving in outline the probable relations of sea and land in 
Jurassic, Cretaceous, and Miocene times in Central Europe. 
Fig. 2. Central Europe in the Jurassic Period. The continents are white ; the 
shaded parts represent the sea. (Fig. 97, p. 168, Heer.) 
Undoubtedly the inost wonderful record of the life-history of the 
Jurassic Period has been preserved to us in those remarkable quarries 
in the Lithographie Stone of Eichstadt, Pappenheim and Solenhofen, 
near Munich in Bavaria. 
Here comparatively thin-bedded limestones are exposed, which 
have evidently resulted from a long-continued supply of extremely 
fine and homogeneous mud derived from the disintegration of ad- 
jacent land by some great river System bringing down vast quanti- 
ties of wasted Magnesian and more recent Rha;tic limestones, whose 
commingled Sediments, especially in their thinner and probably more 
shoal-water depositions, reveal to us the near presence of land teem- 
ing with life, as attested by large Dragon-flies, Beetles, Hemipterous 
insects, long and short-tailed Pterodactyls and Land-lizards, and that 
remarkable bird the Archäopteryx . 1 Numerous Conifera are evidenced 
by detached branches and remains of cones, some of which have 
been described by Prof. Dyer in the pages of tliis Magazine . 2 These, 
with abundance of Fishes, Crustacea, and Mollusca, make up a mar- 
vellously rieh record of Upper Jurassic life ; and the geologist who 
1 Preserved in the British Museum, and descrihed by Prof. Owen in the Phil. 
Trans. 1863, p. 33, pl. 1. . . , T ... . . c . f 
2 See paper on some Comferous Remams from the Lithographie Stone ot 
Solenhofen, by Prof. W. T. Thiselton Dyer, B.A., B.Sc., F.L.S., Geol. Mag. 1872, 
Vol. IX. pp. 150, 193, Pl. V., etc. 
