one ce 
Reviews—The Geology of India. 823 
in the numerous and conflicting interpretations which have been 
offered as to its true meaning and position in the geological scale ; 
moreover, it is inseparably connected with the bold speculations of 
Blanford and others as to the existence of a great Mesozoic Indo- 
African continent. 
Table of the Aryan Group. 
FREsH-WATER APPROXIMATE 
Martine Formations. ForMATIONS. EQurvaLEnts. 
Raised beaches ; coral banks. Recent alluvium ; Recent. 
Porbandar stone ; Post- 
Desert sand. TERTIARY. 
Cuddalore sandstones. Older alluvium of Pleistocene. 
Narbada and 
Godavari. 
Makran Series. Upper Siwaliks, Pliocene. 
. Irrawaddy Series. 
Tale and Prome | Lower Manchnar. Miocene. Maen 
Nari. Kasauli. Oligocene. 
Kirthar, Ranikot, Sabathu. ae ait he Eocene. 
Cardita Beaumonti Beds. Deccan Trap. 
Chikkim Series ; Bagh Beds; Lameta Series. fies anze or: 
Ariyalir, Trinchinopoly, and 
Utattr Beds. 
Spiti shales; massive limestone of |) JubbulporeSeries. Jurassic. Hye ues 
Baluchistan ; Umia. Rajmahal and : 
Katrol, Chari, and Patcham Series | Mahadeva = 
of Cutch ; Hsipaw Series. Series. a 
Trias of Central Himalayas ; Panchet Series. wm | Triassic. 
Ceratite formations of Salt Range. S 
fox} 
Productus-shales and -limestones, | Damuda Series. BS 
Central Himalayas & Salt Range. 5 ah 
Boulder-bed of Salt Range. ” | 'Paleher ae 
Boulder-bed. 
The Gondwana System.—Above the youngest member of the 
Vindhyan system there is a great gap of unknown width in the 
geological history of peninsular India, and its next chapter commences 
with a formation deposited on a land surface, which, it is surmised, 
had some sort of land connection with Africa and Australia. The 
basement is known as the Talcher boulder-bed, and a similar boulder- 
bed is also found in Africa and Australia, all being generally regarded 
as the result of ice-action, though there does not seem to have been 
any special glacial fauna associated with such ice-action, as is the 
case with the great Pleistocene glaciation. Reference has already 
been made to the analogous boulder-bed in the Salt Range. The 
author considers that the lowermost beds of the Gondwana system 
are fixed by indirect evidence as Upper Carboniferous or Permo- 
Carboniferous in age, whilst the uppermost stages of this system are 
1 Extracted from vol. i of ‘* The Indian Empire,’’ p. 55. 
