6 
HAYDEN : GKOLOGY OF SPITI. 
Oldham (/?. D.). — Notes on the Geology of the North-West Hima- 
layas. 
(Records, G. S. I., vol. XXI, pp. 130 — 143, and 
pp. 149—159.) 
LydEKKER (/?.). — Geology of Kashmir. 
(Memoirs, G. S. I., vol. XXII.) ' 
GrieSBACH (C. L,). — Geological notes. 
(Records, G. S. I., vol. XXII, pp. 158—167.) 
GrIESBACH (C Z,). — Geology of the Central Himalayas. 
(Memoirs, G. S. I., vol. XXIII.) 
In addition to the above, progress reports by the late Dr. von Krafft 
and by the present writer were published, during the course of the 
work, in the General Reports, Geological Survey of India, for the years 
1898-1899, 1899-1900, igoi-1902. 
Of the above papers, those of McMahon and Oldham relate chiefly 
to the vexed question of the correlation of the 
beds of Spiti with the p re-tertiary formations of 
the outer Himalayas ; these will be discussed below {vide cha,p. VIII). 
The paper by Mallet is confined chiefly to mineralogical questions, 
including that of the origin of the gypsum,^ and 
does not deal with stratigraphy. 
Of the remaining papers, those of Stoliczka embody the first 
systematic account of the geology of Spiti. 
Although, owing to the short duration of his 
visit, this account necessarily lacks completeness and detail, yet the 
majority of his general conclusions have been borne out by the recent, 
more detailed work. 
He divided the whole stratigraphical sequence into the following 
ten series : — 
McMahon: Oldham. 
Mallet. 
Stoliczka. 
Chikkim beds 
Giumal sandstone 
Spiti shales . 
Upper Tagling limestone 
Lower ,, 
. Cretaceous. 
. Upper oolite. 
. Middle oolite. 
. Middle lias. 
. Lower ,, 
( 6 ) 
' Vide tnfra, p. loi. 
