"OOTHECA WOLLEYANA" 71 



Newton added descriptions of specimens he received 

 subsequently and of tlie specimens in the collection 

 belonging to his brother Edward and himseK. 



The First Part of the " Ootheca WoUeyana," as the 

 catalogue was called, was pubUshed early in 1864, and 

 in his Preface Newton announced his intention of pub- 

 lishing the Second Part on the 1st of December of the 

 same year. Circumstances, however, long delayed the 

 preparation of the work, and it was not until 1902 that 

 Part II. appeared, followed closely by Parts III. and IV. 

 (the last) in 1905 and 1907. Though this long postpone- 

 ment was somewhat irritating to the expectant sub- 

 scribers, the succeeding parts gained greatly in value by 

 the delay, in that JN'ewton was able to include eggs which 

 had always baffled Wolley's efEorts. A great number of 

 these additional specimens were obtained by Wolley's 

 collector Knoblock, whom Newton kept in his own pay 

 for several years. Another circumstance which greatly 

 added to the extent of the work was that, whereas 

 Wolley's collection was confined to European species, 

 Newton decided to extend its Umits to those of the 

 western half of the Palaearctic Regions, as being a district 

 more naturally defined : — 



My foreign correspondence is growing awkwardly 

 large, and yet I must increase it, for I am bent upon 

 having every egg that is to be got before the publication 

 of the " O.W." and I am trying to make Greenland, Spain, 

 India, and Russia disgorge their ovarian possessions. 



In a "Retrospective Note" (November 20, 1906) 

 Newton wrote : 



Thankful as I am at being able to complete this 

 work, my feeling is rather of regret than satisfaction, for, 

 owing to the length of time which has elapsed since the 

 first part of it appeared, so few of Mr. Wolley's personal 

 friends are left to see its conclusion, and this Catalogue 



