PREFACE. XI 



The heading * Anonymous Publications ' has been much 

 altered from its original shape. In the former list there 

 were several entries which have been here reduced to their 

 proper authorship ; others have been excluded by the change 

 of plan ; many were too hopelessly defective to be here given. 

 The system of cataloguing anonymous books at the British 

 Museum is an excellent method of drafting off such ware 

 into the Library, but it gives almost no assistance to the 

 searcher. In some cases it is not enough to know all that 

 the book itself states, as where a medical tract by John 

 Pechie is entered under Sir John Mickleth waiters name, 

 because f Pechie addressed his pamphlet ** To the President of 

 the College of Phisitians," and the cataloguer having taken 

 the pains to find out who was President of the College for 

 the time being, entered it under his name. The Old General 

 Catalogue, with its common-sense entries, is far more useful 

 for hunting up these books than the New General Catalogue, 

 with its elaborate system of rules. 



The abbreviations used will, I believe, in every case be recog- 

 nized without giving a tabular statement — 'Pharm. Journ* for 

 Pharmaceutical Journal, and so on. In this, as in Mr. Solly's 

 Index to . , . Titles of Honour, and my Ouicle to the Literature 

 of Botany, the sign — > is used to signify ' in progress ' ; 

 many of the abbreviations I was compelled to use in my 

 Guide to the Literature of Botany are not used here, as I have 

 been able to quote the titles fully, any omissions in the 

 middle being shown by dots . . . , at the end by etc. 



During the progress of the work I have been indebted to 

 many friends for help on special points, for which I here 

 tender my hearty thanks ; but I must especially name Mr. C. 

 G. Wamford Lock for much help afforded throughout, and 



