Bibliography of Volcanoes of Southern Italy. 329 



of years of patient research seemed likely to be thrown away had 

 not his family most felicitously conceived the idea of completing the 

 Avork so far as might he possible and publishing it as a worthy 

 offering to his memory. 



Fortunately, this has been rendered practicable through the cordial 

 co-operation of his secretary, who, during recent years, had been 

 closely associated with Dr. Johnston-Lavis in the work and was 

 thoroughly acquainted with his scheme and method. Miss Stanton 

 accordingly continued the researches that had been begun in the 

 Library of the Geological Society of London, where the index 

 catalogue prepared by Mr. C. Davies Sherborn proved invaluable, 

 tlie Reading Room of the British Museum, and the Libraries in the 

 Natural History Museum, extending them to the Library of the 

 Societe Geologique de France, where she met with cordial assistance, 

 especially from the President, M. Maurice Cossmann, and the former 

 President, M. Emmanuel de Margerie, and the Bibliotheque 

 Rationale de France, Avhere, as unhappily customary in that 

 establishment, all spirit of practical help was conspicuous by its 

 absence. 



In this way the present bibliography was completed, so far as at 

 present practicable, as regards all the more important volcanoes. To 

 have extended its scope and to have embraced all volcanic records 

 for the region would have entailed many more years of labour, whilst 

 the value of the bibliography would not have been materially 

 increased thereby. Nor has it been possible in all cases to incorporate 

 in their entirety the individual contents of previous bibliographies in 

 the body of the present one. The existence of such sources of 

 reference is, however, duly recorded, and the inquirer will, therefore, 

 be furnished with the necessary clue towards the object of his 

 research. 



On account of the "War, all access to Dr. Johnston-Lavis' own 

 library was cut off, and hence many entries that might have been 

 completed have perforce had to be included in a less perfect state 

 than could have been wished. The vphole bibliography must, there- 

 fore, under the circumstances of its production, be leniently judged 

 and regarded as a stage only towards that ideal Avork one would like 

 to see. 



The Editor has to acknowledge much kindly assistance and advice 

 given during the progress of the work by Sir Lazarus Fletcher, 

 LL.D., F.R.S. 



The subject-matter has been subdivided, as in the previous 

 edition, according to the different volcanic groups, but some 

 modifications in these have been introduced that approximately 

 follow the author's known intentions in that respect. 



Altogether there are in this present edition some 7,350 entries, 

 and since these include references to the fauna, flora, and 

 palaeontology of the several districts, in addition to their mineralogy, 

 petrology, vulcanology, etc., the work is obviously one of general 

 interest and utility to all workers in natural science, and should 

 therefore find a place on the shelves of every library of any 

 importance. 



