Addvess to the Lincolnshive Naturalists’ Union. 113 
1886 I paid more than one visit to his hospitable home, very 
keenly investigated all the neighbouring country, and in the 
months of August and September, 1887, I published in ‘* The 
Naturalist ”’ a full and elaborate list under the title of ‘‘ Materials 
towards a List of the Land and Freshwater Mollusca of 
Lincolnshire.” This paper extends to 27 pages and includes 
full particulars as to the occurrence of 88 species and a number 
of named varieties, and in four pages of introduction I gave a 
brief history of the subject and a discussion of the contents of 
the list. At the conclusion I indicated a dozen species as almost 
certain to occur—and the work of Lincolnshire conchologists since 
that time has been successful in establishing the presence of all 
but one of them—and it is quite possible to expect that that one— 
Acicula lineata—may some day be found. The discovery of the 
interesting Clausilia volphii is the most significant fact placed for 
the first time on record in this list of mine. 
Various miscellaneous notes by other investigators followed 
during the next few years, the natural and inevitable result of 
the publication of a full list. Amongst others may be mentioned 
notes by Mr. J. Burtt Davy, now Government Agrostologist in 
the Transvaal Colony, and a record of Trent dredgings by Mr. 
George Roberts, of Lofthouse, Yorkshire. 
The formation of our Lincolnshire Naturalists’ Union in 
1893 gave still further impetus and a more systematic direction 
to our study. Mr. F. W. Fierke, of Hull, was at this time 
secretary to our Conchological Section, and as such the author 
of the reports of work done at the meetings, and he was the 
finder of Zonitoides excavatus at the Woodhall Spa meeting. 
In 1894, Mr. Wallis Kew announced the discovery of 
Amphipeplea glutinosa in the drains at Saltfleetby—a species 
remarkable for the sporadic nature of its occurrence in its 
localities, being in great abundance some years and entirely 
absent in others, from unaccountable causes. 
In 1895, the Rev. E. A. Woodrufte-Peacock published in 
“The Naturalist ’’ a map of the county showing its surface-soils 
-and the divisions for natural history work, which has ever since 
been the base of all work dealing with the distribution of species. 
