168 Addvess to the Lincolnshive Naturalists’ Union. 
An interesting field of research, and not too difficult, is 
that of the wood-lice, which have not been worked with us, 
although the curious blind white one (Platyarthrus hoffmannseggit) 
which inhabits ants’ nests is well-known to us, at Grantham 
and Mablethorpe. 
A few microscopic crustacea were noted at Stamford in 1897 
by Messrs. Smith and Wood (Nat., Oct. 1905, p. 317). 
I now come to a group which though by no means well 
worked, has had much more attention paid to it, the Arachnida 
(spiders, mites and their allies). Here again as with the 
Mollusca the great, the immortal Lister is the pioneer—and the 
same volume, published in 1678, which has the first molluscan 
lists, has also the first enumeration of English Spiders, no small 
proportion of which will have been from Lincolnshire material. 
It would be of considerable service to us if some arachnologist 
would determine to what modern species Lister’s polynominal 
designations apply, and thus establish for us the actual 
beginnings of the Lincolnshire spider-list. 
In more recent years Spiders have been collected and 
enumerated by Mr. H. Wallis Kew (68 species, Nat., Feb. 1887, 
pp. 55-59), Mr. Arthur Smith (Nat., Sept. 1901, p. 269 ; and Nov. 
IgOI, p. 332), and Rev. E. A. Woodruffe-Peacock (Nat., Aug. 
and Sept. 1898, pp. 244 and 264). Many of these records are 
based upon indisputable authority, that of the Rev. C. O. 
Pickard-Cambridge. 
A kindred group, the Harvestmen or Phalangidea, were 
enumerated for us by Mr. Peacock, with additions by Mr. Smith 
(Nat., Nov. 1899, pp. 331-332; and Feb. 1go0, p. 62). 
The closely-allied group of the Pseudoscorpions or 
Cheliferidze has been made the special subject of study by our 
old Lincolnshire worker Mr. H. Wallis Kew, who published 
lists in the Naturalist, July 1901, p. 193 (four species), and Aug. 
1903, Ppp. 298-9 (seven). 
The Water-Mites have been collected and _ studied 
assiduously for many years in the Kirton-Lindsey district by Mr. 
C. F. George, who has made the subject his own speciality. 
His lists, with full annotations and with descriptions and figures, 
beets 
