480 THIRD REPORT — 1833. 



4.) What is the nature of the pebbles in the new red sand- 

 stone conglomerate in different districts : do they ever consist 

 of granite, gneiss, mica-slate, chert, millstone grit, or any other 

 sandstone which can be distinctly traced to the coal series ? 



5.) Is the Red Sandstone of Kelso contemporaneous with 

 that of Salisbury Crags ; and what relation do they respectively 

 bear to the adjacent coal-fields ? 



6.) What is the exact northern boundary of the coal-field of 

 the River Liddle? 



7.) What are the relations as td age of the two series of whin 

 rocks, one running north-east along the Liddle in Roxburgh- 

 shire, the other south-east in the neighbourhood of Melrose 

 and Jedburgh ? 



8.) Can the Limestone of Closeburn in Dumfriesshire be re- 

 cognised beyond that valley ? 



9.) Does the Wealden formation exist in the midland counties 

 of England ? 



10.) What is the character of the districts in which ores of 

 manganese occur? 



11.) Wliat is the history of the Haematite of Dalton in Lan- 

 cashire, in relation to the beds in which it occurs ? 



12.) What are the minei'alogical characters of the several 

 beds comprised in Forster's Section of the Strata in the North 

 of England ; and what are the fossils contained in each ? 



Desiderata noticed in Mr, Conybearc s Report. 



1. An accurate examination of the conclusions deducible from 

 the known density of the earth, as to the solid structure and 

 composition of the interior. 



2. The attention of residents in our remote foreign depen- 

 dencies is invited to the two great questions of comparative 

 Geology and Palaeontology. 1. Is there or is there not such a 

 general uniformity of type in the series of rock-formations in 

 distant countries, that we must conceive them to have resulted 

 from general causes of almost universal prevalence at the same 

 geological agra ? 2. Are the organic remains of the same geo- 

 logical period specifically similar in very remote districts, and 

 more especially under chmates actually different ; or are they 

 grouped together within narrower boundaries, and under re- 

 strictions as to geographical habitats analogous to those which 

 prevail in the actual system of things? (p. 410.) 



o. An examination of the geological structure of the countries 

 constituting the great basin of the Indus, where, if in any part 

 of India, it is supposed a complete series of secondary strata 

 may be expected, (p. 396.) 



