348 A. B. WYNNE ON THE PHYSICAL 



The observations of the Geological Survey of India have been 

 extended to the ground between the Simla outer Himalayan area 

 and the Rawal Pindi* plateau, the gap which formerly existed there 

 having been filled up by the examination of the Jamu Hills f and 

 the Pir-Panjal range $. 



Some further acquaintance has been made with the outer Hima- 

 layan hills north of the Rawal Pindi plateau, and this plateau itself 

 has been mapped, as well as the small Kharian ridge lying between 

 the eastern part of the Salt Range and the Jamu-Kashmir mountains. 



At several places in or near the Rawal-Pindi plateau large 

 additions to the collections of Siwalik fossils have been made by Mr. 

 Theobald, and several new or otherwise interesting forms have been 

 described by Mr. Lydekker §. 



Mr. Ball's visit to some ground beyond the western frontier of the 

 Punjab |!, to inspect a reputed coal-locality, has shown the structure 

 of the border mountains in that direction. 



In Mr. Medlicott's paper on the Jamu district ^f is pointed out the 

 gradual disappearance of several unconformities in the outer Hima- 

 layan tertiary zone, as the rocks extend towards this part of the 

 Punjab, although the disturbed abnormal contact of the whole 

 zone with the older Himalayan rocks remains strongly marked 

 throughout, except at the west base of the Daulahdar range**, where 

 the junction rock is in " a semimetamorphic trappoid condition.*' 

 From the differences between the stratigraphic relations in the Simla 

 area and in the valley of the Jhelum, he concludes that the middle 

 parts of the Himalaya mountains, near the former area, were ele- 

 vated at a much earlier period than those to the westward, towards 

 the Jhelum valley and the Hindu Kushf f . He also notices a post- 

 tertiary formation or high-level river shingle in the Jamu area, ap- 

 parently analogous to the superficial deposit included as "post- 

 tertiary or drift " in the first two columns of the Table given at 

 p. 63 of my former paper (vol. xxx.). (See opposite page.) 



4. Before proceeding, I would call attention to the description of 

 the general structure of this country in that communication, and 

 to the Table itself, showing, so far as can be at present traced, 

 the corresponding formations in the following directions, viz. : — 

 in the Salt Range, in the outer Himalayas of this country, in those 

 of the Simla area, and the presumably representative groups of 

 the central Himalaya region. To that Table may now be added 

 the corresponding classification of the rocks between the northern 

 Punjab and the Tien-Shan mountains, taken from Dr. Stoliczka's 

 Yarkand and Kashgar papers %i, as well as those given by Messrs. 



* In English " Eawul Pindee," from an older town (or Pind) situated on the 

 river Rawal some miles to the east, 

 t Jumoo. Peer Punjal. 



I Messrs. Medlicott and Lydekker. Pec. Geol. Surv. Ind. vol. ix. pp. 49, 155. 

 § Records Geol. Surv. Ind. vol. ix. pp. 42, 86, 154, vol. x. pp. SO, 76. 

 || Records Geol. Surv. Ind. vol. vii. p. 14. 

 *JH Records Geol. Surv. Ind. vol. ix. p. 49. ** Daoladar. 



tt Hindoo Koosh. Records Geol. Surv. Ind. vol. ix. p. 51. 

 J } Records Geol. Surv. Ind. vol. vii. pp. 12, 49, 81, vol. viii. p. 



13. 



