EXPLANATION OF ABBREVIATIONS, ETC. 



* indicates a translation, abstract, summary or critique of a paper which has not teen 

 brought before the Geological Society, but has appeared m the publications 

 of some other institution. 



Roman numerals alone indicate number of volume Preceded by p. or pi. they 

 indicate page (of Proceedings) and Plate respectively. 



Arabic numerals indicate page-numbers. When separated by ^^^^ 

 a whole paper, and, in a few cases, a large part of a papei published on the 

 subject indexed. 



r a bs.j following the title of a paper indicates that the paper has been published by 

 the Geological Society in abstract only. 



et seaa after page-numbers implies that references to the subject indexed will be 

 ^ound scattered through the succeeding pages; but it does not imply that 

 those pages deal wholly or mainly with the subject in question. 



fig. after a single page-number indicates a figure on that particular page, 

 fi* or figs, after two page-numbers separated by a hyphen implies that the paper 

 thus designated is illustrated by figures in the text. 



section implies that there is a figured section on the page or pages indexed : when 

 Swed by descr., the mlaning is that the section is descriptive only, and not 

 figured unless that is so stated by means of the abbreviation fig. 



T t would appear hardly necessary to tabulate here a complete list of all the abbreviations 

 It woul u d g ^ e a a s r mosto y f them w iu probab ly explain themselves. The following list 

 will give an idea of the principle upon which they have been formed :- 



app.=apparent, apparently. I Lr.=Lower. 



Carb.=Carboniferous. 



chem. anal. = chemical analyses. 



comp.=composition. . 



comp. w.=comparison with, compared with 



COTm — connexion, connected. 



Cret.=Cretaceous. 



Devon . =Devonian . 



Eoc.=Eocene. 



foss.=fossil. 



fr.=from. 



gen. = general, generic. 



geol.=geology, geological. 



I. of W.= Isle of Wight. 



microsc .=microscopic . 



nr.=near. 



O. R. S.=01d Red Sandstone. 



obs.=observations, observed. 



Perm.=Permian. 



phys.= physical. 



pres.=present. 



p r es .=Presidential. 



prop.=proposed. 



struct .=structure. 



supp.=supposed. 



temp.=temperature. 



w.=with; wh.=which. 



Note -Where a heading is of such general use that a large number of references 

 appear under it, it has been thought advisable to aid the reader m his search by 

 arSbg the references in successive paragraphs repeating the heading at every 

 teTvdumes (as a rule) in chronological order. Within each paragraph references to 

 the same locality or formation are, as far as possible, grouped together. 



L. L. B. 



, U ./no 



