Yorkshire Naturalists’ Union: Annual Report, 1912. 83 
Yorkshire Naturalists’ Union have appeared in The Naturalist, 
viz., Riccall, June, p. 177; Tanfield, August, p. 251, and 
Tebay, October, pp. 304-5. Only three species have been 
added to the county list during the year, Tvochosa robusta 
Sim. by Mr. J. W. H. Harrison, Thyreosthenius biovatus Camb. 
and Agyneta subtilis Camb. by myself, but additional stations 
have been discovered for some of the lesser known York- 
shire spiders, notably Porrhomma egeria Sim., Gongylidiellum 
latebricola Camb., Typhochrestus digitatus Camb., Entelecara 
thorellit Westr., Cornicularia vigilax Bl., Cercidia prominens 
Westr., and Oxyptila atomaria Panz. Spiders have been 
received for identification or verification from Mr. Winter, and 
an interesting list of North Riding species from Mr. J. W. H. 
Harrison. On several occasions in the neighbourhood of 
Slaithwaite, their dispersal by aerial flight has been again 
witnessed, the following species taking part, @dothorax fuscus 
Bl., Ed. retusus Westr., Erigone dentipalpis Wid., E. atra BL., 
E. promiscua Camb., Savignia frontata Bl., Dicymbium nigrum 
Bl., Tiso vagans, Bl., Microneta rupestris, C. L. Koch. and 
Cnephalocotes elegans Camb. The harvestman, Nemastoma 
chrysomelas Herm., has once more been met with, and the 
pseudoscorpions Chernes nodosus Schr. at Hull, C. panzert 
C. L. Koch, at Ingleton and Chthonius tetrachelatus at Shipley. 
Mr. Winter reports the following mites :—Gamasus coleop- 
teratorum Koch., at Shipley, Tvombidium holosericeum at 
Saltaire (F. Booth), Ottonia clavata, at Ingleton (F.B.), Riyn- 
colophus communis, and Ritteria nemorum in Airedale and 
- Wharfedale (Messrs. R. Butterfield, J. W. H. Johnson and 
W. P. Winter). 
BOTANICAL SECTION. 
Mr. J. Fraser Robinson writes:—The excursions at 
Riccall Common, Bridlington, Flamborough, Cautley, Tebay, 
and Askern were all productive of excellent results (vide 
extended notices in The Naturalist) and afforded important 
additions to botanical science. For the East Riding at least, 
which during the past year had quite adequate attention 
from the Union, some plant species found are quite new records. 
Scirpus sylvaticus, near Kirkham Abbey, and Cochlearia 
anghica on the muddy northern shores of the Humber near 
Welwick, are examples. Regrets (and they are great) must 
here be expressed at the great less the section has sustained 
in the deaths of Rev. Canon Fowler, M.A., Phineas Fox Lee, 
and R. H. Philip, all of whom for long years, and to the last, 
were most ardent and active botanists. 
BOTANICAL SURVEY COMMITTEE.—It is very satisfactory to 
note the growing tendency of Yorkshire botanists in nearly all 
branches to pay closer attention to vegetation problems, and 
1913 Jan.1. 
