Dr. T. G. Halle— Equisetites Stems. 3 



earth's surface and in tracing accurately the principles upon which it 

 was founded, Eelying largely upon his ample observations and 

 experience in former years, his work Antlitz der Erde, from ' the 

 Origin of the Alps ' in 1875 up to its conclusion in 1910, is a unique 

 memorial of scientific, synthetic reasoning. In a masterly way he 

 gathered up his facts from innumerable articles, extracting what was 

 of value even to the smallest paragraph, whether geological or 

 palseontological. For, to his mind, every stone might contribute to 

 the construction of that monumental edifice which he was erecting 

 with such careful hands ... 



" To the congratulations of the Viennese Geological Society offered 

 to him on the completion of the final volume of the Antlit% he replied, 

 ' the merit of the chief part of the work belongs essentially to those 

 Avorkers who have sacrificed their vital powers to carry out those 

 investigations which I have recorded.' His activity as a University 

 Professor not only benefited his class, but quickly spread beyond 

 the walls of the lecture-room to all who would lend a willing 

 ear to the progress of that science which he so zealously taught. 

 To-day Suess completes the 80th year of his life. How few scientific 

 men are permitted to retire from active work in their full health and 

 vigour and in the enjoyment of all their faculties. He can look back 

 upon a happy life as an investigator and a teacher; as an active 

 citizen of Vienna, as president for many years of one of the most 

 eminent Academies, and as an elected Member of Parliament. The 

 son, who is on the point of taking his father's place at the University, 

 also gives promise of most excellent abilities." ^ 



Of Professor Suess' publications the list would be too long to give, 

 but one may mention, however, specially, the following : — 



" Ueber Terebratula dipliya " : SB. k. Ak. Wiss. Wien, 1852. [His Brachiopod 

 and Cephalopod work was continued in many papers until 1870.] 



Ueber das Wesen mid der Nutzen palaeontologischer Studien. Wien und 

 Olmiiz, 1857. 



Der Boden der Stadt Wien . . . Wien, 1862. 



Die Entstehung der Alpen. Wien, 1875. 



Das Antlitz der Erde. Prag, Wien, und Leipzig, 1883-1909 ; 

 in French, Paris, 1897-1911 ; in English, Oxford, 1904-9. 



II. On VPRIG-BT SJqUISUTITES SiTEMS IN THE OoLITIC SaNDSTONE IN 



YOEKSHIEE. 



By Dr. T. G. Halle, of Stockholm.^ 

 (PLATE n.) 



STEMS of Equisetites columnaris (Brong.) have long been known to 

 occur in a vertical position in the sandstones of the Inferior 

 Oolite on the Yorkshire coast. This mode of occurrence has commonly 

 been held as proving that the stems are preserved in the position in 

 which they once grew, having been buried in situ beneath the layers 



' Die Geologie an der Wiener XJniversitdt in den letzten 50 Jaliren. Ein 

 Blatt des Gliickwunsches und des Gedachtnisses von G. Steinmann. Aus 

 Geologische Eundschau, ii, pp. 368-9, Leipzig, Wilhelm Engelmanji, 1911, Bvo. 



- Communicated by Professor A. G. Nathorst, LL.D., Sc.D., Ph.D., Keeper 

 of the Department of Fossil Plants, Eoyal Natural History Museum, Stockholm. 



