756 EEroRT— 1893. 



5. On Bones and Antlers of Cervus giganteus incised and marTced hy 

 Mutual Attrition while buried in Bogs or Marl. By V. Ball, C.B,, 

 LL.D., F.B.8. 



From time to time bones and antlers of tliis extinct deer have been found with 

 peculiar cuts and marks upon them, wliicli have suggested to some observers the 

 work of man ; careful examination has shown, however, that these cuts and 

 polished and indented surfaces are all really due to the same cause, namely, the 

 sawing or rubbing together of bones and antlers as they lay in contact while em- 

 bedded in marl underlying peat. We cannot say with any degree of certainty 

 what the cause of the movement may have been. It may perhaps have been due 

 to alternate expansion and contraction, up and down, according to the amount of 

 moisture in the bog ; possibly, however, it was connected with earth-tremors, the 

 origin and extent of which cannot be so easily explained. 



The several finds of these cut bones, of which examples were exhibited to the 

 Section, were made at Legan, five miles south of Edgeworthstown, Co. Longford ; 

 and on the left bank of the river Oamoge, one mile from Lough Gur, and close to 

 Kilcullen House, Co. Limerick. 



In the former case, which was described by Professor Jukes in the year 1863, 

 the bones lay in shell marl 2 or 3 feet thick, resting on blue clay (drift) and 

 covered by 15 feet of peat; but originally, before being cut, the peat had been 

 50 feet thick at this spot. In the Lough Gur locality, which is described by Dr. 

 Carte, the mode of occurrence of the bones was similar. 



On a Mass of Cemented Shells dredged from the Sea Bed. 

 By Professor W. H. Heedman, .P.E.S. 



7. Note to accompany the Exhibition of a Geological Map of India. 

 By R. D. Oldham, A.B.8.M., F.G.8., of the Geological Survey of India. 



Two maps are exhibited, on the scales of 96 and 32 miles to the inch 

 respectively. The smaller is a chromo-lithograph, and will be published shortly 

 with the second edition of that portion of the ' Manual of the Geology of India ' 

 which deals with the stratigraphical and structural geology of the Empire. The 

 larger is a manuscript map representing in greater detail the state of our know- 

 ledge of Indian geology at the end of 1S92. • 



It is well known that the Indian Empire is divisible into three geological 

 regions, which are recognised as (1) the Peninsular, (2) the extra-Peninsular, and, 

 separating them, (3) the Indo-Gangetic alluvium. 



It is in the extra-Peninsular region that most of the additions to our know- 

 ledge of Indian geology have been made since the publication of a general map 

 with the first edition of the ' Manual of the Geology of India.' The most important 

 of these additions, so far as the area coloured goes, are in Upper Burma and the 

 country explored by my colleague Mr. Griesbach while attached to the Afghan 

 Boundary Commission ; but, besides actual additions to the coloured area, great 

 additions have been made to our knowledge of the stratigraphy and correlation of 

 the rocks within the area which was coloured on the previous map. 



Among the most important stratigraphical features of the extra-Peninsular area 

 may be ranked the fine development, and abundant fossils, of the Lower Trias of 

 the Central Himalayas ; the rich fauna of this period, very scantily represented in 

 Europe, is now under description, and the publication of the results must be 

 looked forward to as an important addition to geological knowledge. Another 

 feature is the very fine development of Cretaceous and Tertiary"- beds on the 

 western frontier, and here the main stratigraphical break is not between the 

 Cretaceous and Tertiary, but at the base of the Lower Cretaceous of accepted 

 chronology. 



Structurally the most important feature of the extra-Peninsular area is the 

 great disturbance the beds have undergone, a disturbance which has taken place 



