290 THE NATURAL HISTORY DIVISIONS OF LINCOLNSHIRE. 
done, and (2) railway communication for future observation. The 
Watsonian Vice-Counties, N. Lincs. 53 or N. and S. Lincs. 52 or S., 
have been left intact, clearly separated as they are by the river 
Witham from Boston to Lincoln, and by the Foss Dyke from Lincoln 
to the border of Nottingham. The modern course of these streams 
is the line of demarcation ; and as both cut through one or more 
parishes on their way from the cathedral city to their outfalls in the 
Wash and river Trent, these parishes have both a N. and a §, vice- 
county number. This is also the case with parishes scattered in 
departments referred to below. In making notes in divided or 
scattered parishes it is an easy matter to remember whether the 
Witham or Foss Dyke is to the north or south of the place of 
observation. As N, contains more than three-fifths of the county, 
and as S. is almost one-half unwooded fen-land, which has been 
so greatly changed in fauna and flora by drainage and high farming 
during the last hundred years, I have given N. a double share of 
Divisions, which are therefore smaller for the most part than those 
of S, They are shown by continuous red lines and numbers on the 
map, and are named as follows :— 
NortTH LINCOLNSHIRE, 53. 
1.—Isle of Axhol 7.— Market Rasen. 
2,— Winterton ia Brovgton 8.—-Louth, 
3.—Barton and Cai 9.—Saltfleet (Littoral). 
4.— Great Gitiety? 10.—Horncastle and West Fen. 
5-—Kirton and Gainsborough. 11.——Alford and Burgh 
6.—Lincoln (North). 12.—Boston and East Fen. 
SOUTH LINCOLNSHIRE, 52. 
13.—Lincoln (South). : 16.— Bourn and Stamford. 
14.—Sleaford 17.—Swineshead and Donington. 
15; = Granthion 18.—Spalding and Holbeac 
The numbers indicate which phe ssiniee a record refers to 
without the constant use of N, and S, 
SUB-DIVISIONS. 
The sub-divisions of the larger divisions—which have been 
obligingly worked out by Mr. W. Denison Roebuck —have been added 
for the purpose of facilitating more detailed work and of more fully 
indicating the distribution of rare and local species. They are shown — 
by dotted red lines, and are further indicated by the initial letters 
of the cardinal points of the compass on the map. It is nob 
however, thought advisable to print ‘these initial letters after the , 
division numbers in the place name list, as it would add considerably ae 
to the length of the paper. The Secretary of the Lincolnshire 
Naturalists’ Union, or the Editors of ‘The meee 
