Notices of Me^noirs — Dr. Gumhel on Receptaculites. 12 



tlie following profile of the mountain, called by him Tschermak's 

 Berg. By Blomstrand and myself it had formerly been called Middle 

 Hook. 



Fig. 13. — Profile of Tschermak's Berg, in Ice Sound, by von Drasche. 

 1. Black bituminous marl, with many coprolites, Cephalopoda, and bivalves. 

 2. Reddish sandstone, with but few fossils. 3. Diabase. 4. Eeddish sandstone, 

 like 2. 5. Clay-slate. 6. Limestone, with very evident traces of the action of 

 waves. 7. Thin stratum of diabase. 8. Grey limestone. 



ETzman Bay. — The bottom of the fiord is occupied by a glacier, 

 off which the fiord is for a considerable distance so shallow that 

 a boat cannot be rowed in it. The sides are formed of two moun- 

 tains, which in an architectural respect are the finest I know of on 

 Spitzbergen, and which on that account were by us distinguished 

 with the names Colosseum and Capitolium. The geological structure 

 of both is clearly identical ; they consist of horizontal Mountain 

 Limestone strata, succeeded by a bed of gypsum marl, divided with 

 the utmost regularity into niches and beautiful rows of pillars, on 

 which rests a roof of diabase, which, however, does not here form the 

 terrace with precipitous sides at the summit of the mountain. The 

 Mountain Limestone strata further up the fiord rest (as seen in 

 the profile Fig. 7, given in the last Number of the Geol. Mag., at 

 p. 68) on the Liefde Bay strata. 



(To be continued m our next Number^ 



nsroTioiES oiB^ nvniEnvnoiies- 



Eemaeks on the Organization and Systematic Position of 



Receptaculites. By C. W. Gumbel. [BEiTuaGE zuR Kenntniss 



DER Organisation, u. s. w.] From the Transactions of the 



Eoyal Bavarian Academy of Sciences, Math.-Phys. Class. 



Yol. XII. Part I. 4to. 49 pages, 1 plate. Munich, 1875. 



^T'-^^IOUS opinions have been held as to the zoological place of 



V the fossil known as Becejytaculites, occurring in the Silurian 



system, but represented by a fine species throughout the Devonian 



rocks of the Rhenish system. It has been referred by some to the 



Sponges, and by others to the Foraminifera. Dr, Gumbel's late 



microscopic researches on the internal structure of this interesting 



fossil place its nature in a clear light. As already described by 



