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By the Rev. 0. PICKARD-CAMBRIDGE, M.A., F.R.S,, &c. 



February, 1905.) 



HAVE been able to do but little myself in the way of 

 field-work since my last communication (Septem- 

 ber, 1903), but I have continued the working 

 out of materials previously collected and the 

 rectification of nomenclature. This, added to 

 the results of collecting by several kind friends, 

 enables me to report now a very favourable 

 progress in our knowledge of British Arachnida. 

 Thirteen species have been added to our British List. Of these 

 eight are considered to be new to science, and five have not 

 been previously recorded in Great Britain, though known as 

 Continental species. Added to the above are also several other 

 species of which the females have not been before described. 

 Of those new to science four were discovered by Dr. A. R. 

 Jackson, M.D., of Hexham, viz., Tmeticus firmus, Tmeticus rivalis, 

 Styloctetor uncinus, and Laseola dissimilis ; this last in Dorsetshire 

 (at Portland) during a short visit to me in June last. Of the 

 other three, two were found at Hexham and one at the top of 



