30 STRATIGRAPHICAL GEOLOGY 



of Maps and Memoirs issued by the Survey. Many of them have 

 lists of the publications referring to the district under description. 



The next most important source of information is the Quarterly 

 Journal of the Geological Society of London, the publication of which 

 commenced in 1845. There is an excellent index to the first fifty 

 volumes of this Journal, which can be purchased from the Geological 

 Society, Burlington House, London (price 10s.). This index gives 

 references to the names of authors, of places, and of subjects, so that 

 by its means it is easy to ascertain what papers have been published 

 in the Journal on any particular area or any set of beds. This 

 index deals with the yearly volumes between 1845 and 1894. 



The Geological Society also publishes every year a list of the 

 various items of geological literature which have been added to its 

 library. This publication began in 1894, with a list for the latter 

 half of that year (price Is.). Each succeeding annual part is issued 

 in a paper cover (price 2s.), and is divided into two portions, the 

 first being an index of authors' names with titles of papers, and the 

 second an index of subjects, and each separate paper in all the 

 publications purchased or received by the Geological Society is 

 entered in these indices, as well as all the papers published in the 

 Quarterly Journal of the Society since 1894. It will be seen, 

 therefore, that this annual list forms a fairly good index to the 

 geological literature of the whole world. 



Before this work was taken in hand by the Geological Society 

 of London two attempts had been made in England to establish an 

 annual record of geological literature. These were : 



1. The Geological Record, consisting of six annual volumes 



(1874-1879), edited by W. Whitaker, giving short 

 abstracts of all papers, British and foreign ; and two 

 volumes (for 1880 to 1884 inclusive), edited by W. 

 Topley, giving titles only. Published by Taylor and 

 Francis, London. Price 16s. per volume. 



2. The Annals of British Geology, by J. F. Blake (Dulau and 



Co., London). Four volumes (1890-1893). Price of the 

 vol. for 1890, 5s., of others, 9s. 



The volumes of the Geological Magazine contain many articles 

 on stratigraphical geology, and a general Index to all the volumes 

 from 1864 to 1903 has been published, price 21s. 



The Geologists' Association publishes Proceedings which contain 

 many useful papers, and each volume contains the proceedings and 

 communications of two years, with accounts of excursions and a good 

 index. The first volume is for the years 1868-69. 



Of the provincial societies which publish geological papers the 



