•Vol. 54.] ROCKS AND FOSSILS PROM FEANZ JOSEF LAND. 051 



6. Cape Gertrude. 



Many examples of the beds exposed at Cape Gertrude have been 

 received, and these show vegetable remains at several horizons, but 

 nothing sufficiently perfect for identification. One bed may be 

 especially mentioned : it is a grey, calcareous, sandy rock filled with 

 carbonized vegetable remains, and at first sight reminds one of the 

 sandstone with plants found at Cape Stephen ; but the present 

 specimens are much more friable, and besides this the plant-remains 

 are indeterminable and seem to be altogether different ; there are 

 none of the broad leaves, which are so plentiful in the Cape Stephen 

 rock, but the remains have more the appearance of broken pieces of 

 charcoal and give no outline to indicate the form of the plant. 



11. Cape Richthofen. 



In the earlier notes on the plant-remains from this locality, the 

 possibility of certain of them being of Tertiary age was suggested. 

 Examples of these plants have since been submitted to Dr. Nathorst, 

 who, in a letter written on board the Antarctic, and dated May 

 30th, 1898, says that the absence of any fragment of a dicotyledon, 

 which probably would not have been the case if the bed had been 

 of Tertiary age, and the presence of two or three species of Pinites 

 (one of which may rather be named Taxites) lead him to think that 

 these plant-remains correspond with the Jurassic forms from Cape 

 Mora. 



In conclusion we desire to express our high appreciation of the 

 services which Dr. Koettlitz has rendered to geology in connexion 

 with the Jackson-Harmsworth Expedition to Eranz Josef Land. He 

 had many duties to perform, and it was only in the intervals that 

 could be spared from these duties that he was able to study the 

 geology of the district. Under these circumstances our warmest 

 thanks are due to him not only for the keen interest that he has 

 taken in our science, for the energy that he has shown in collecting 

 minerals, rocks, and fossils under difficult and adverse conditions, 

 and carefully noting their mode of occurrence, but also for the skill 

 with which he has made his observations on the general structure 

 and physical features of that ice-bound land. 



EXPLANATION OF PLATE XXIX. 



Fig. 1. Avicula sp. Half natural size. Found in place 500 yards west of 

 Elmwood and 30 to 40 feet above sea-level. 



2. Ammonites Lamberti. Fragment, natural size. Found in place at the 



base of the basalt, ^ mile north-west of Elmwood. 



3. Ginkgo polaris (?) , Nathorst. Natural size. From plant-bed, in place, 



between the second and third tiers of basalt, above Windy Gully. 



4. Inoceramus (Ij. Half natural size. Found in place on the shoulder of 



rock at the southern end of Windy Gully. 



5. Belemnites sp. Natural size. Found with the Inocermmis of fig. 4. 



The curvature has no doubt been caused by the fractures, which are 

 indicated in the figure. 5 a. Cross-section at the point marked, to 

 show the oval and compressed outline, as well as the alveolar cavity. 



2z2 



