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To The Natiii-alist lor 1903 arc 

 payable strictly in advance, and 



ARE NOW DUE, 



and slioiild lu' sent to iho 



Treasurer, 



J. H. HOWARTH, F.G.S., 

 Somerley, 



HALIFAX, 

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'^vo., cloth, '.\.'ith Coloured Map, piur ,^s.; 

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The Flora of West Yorkshire. 



Bv Fki-.pkric AuNoi.n Lki^s, M.K.C.S., cu-. 



This, which forms the 2nd Volume ot tlic 

 Holanical Series of the Tmnsactions, is perliaps 

 the most complete work of the kind ever issued 

 for any district, including- detailed and full records 

 o( 1.044 Phanerog:anis and Vascular Cryptogams, 

 II Charace<e, 348 Mosses, io8 llepatics, ^^8 

 Lichens, 1,009 Fiuigfi, and Z^^ Freshwater .Mtfie, 

 making' a tot;il of 3,160 species. 



Mav he h.ul from the Hon. Sc 

 V.N.I"'., Musr.nn. Hull. 



BINDING CASES. 



Cloth casos, s^-ilt lettered, for 1901, 

 are to be had at pd. each ; if by post, 

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The yatunilist for any year will be 

 bound lip in cloth case for is. 6d., 

 postag-e, 4d. extra. 



.l.hlress: 



Editors of The JS'aturalist, Museum, Hull. 



A HANDBOOK OF THE 



Vertebrate Fauna of Yorkshire 



lieinr; n C.it i1.il.'iic of liritish Mammals, Hirds, Reptiles. 



.\iMpIiiI)ians iuul i'ishes. showinsj what species are 



or h;ive. within historical periods, been found 



in the couiny. 



I!Y 



W. Eagle Clarke,F.L.S.,&W.Denison Roebuck, F.L.S. 

 PRICE 8s. 6d. Maybe H.\n of the Authors, 

 OR or LovELi, Kekve <Sr= Co., 6, Henrietta 

 Street, Covent Garden, London. 

 F..\TRACTS FROM REVIHWS :— 'The authors of this cata- 

 loijue may take a pride in their work, which has evidently 

 lieen executed with most conscientious care. They have 

 ^iven a short introductory exposition of the principles by 

 which they have been guiderl. and an excellent brief sketch 

 of the physical aspects of Yorkshire, and the summary of 

 the results of their investiijation of its Vertebr.ita. The 

 little book is a most valuable contribution to British zoologi- 

 cal literature.'— .-/«;;. &■ .Uui;. Xat Hist. 



'The work is an excellent one of its kind." — Atltf}ii7nfit 



THE FUNGUS FLORA OF 

 YORKSHIRE. 



A Complete Account of the known 



Fiing-i of the County. 



By G. MASSEE, F.L.S. , F.R.M.S., and 



0. CROSSLAND, F.L.S. 



First Instalment now ready. 

 PRICE 1/3 NET. 



To be obtained only from the Ho.\. 

 Secret.vrv of the Union, 



T. SHEPPARD, F.G.S., 



THE MUSEUM, HULL. 



.yo'cV ready, co)iiplctr, SfO. Cloth, 



P. 



p,>st Jr 



The Alga-Flora of Yorkshire. 



A complete account of the 1,044 

 Fresh Water Alg;e of the County. 



By W. WEST, F.L.S., 

 and G. S. WEST, B.A., A.R.C.S. 



To be had onh' from the Hon. 

 Secret.xry of the 



YORKSHIRE NATURALISTS' UNION, 

 MUSEUM, HULL. 



Alenibers may liave a bound copy in exch.intfe 

 for their parts, t\>r the .idditional charg^e ■■! is gd. 

 carritTge p.iid. 



So'M ready, Svo. cloth, price 6s., post free '■ 



LIST OF 



YORKSHIRE LEPIDOPTERA. 



By G. T. PORRITT, F.L.S 



Contains copious records ot the localities, etc., 

 of the 1,340 species of macro- and micro- 

 lepidopter.i known to inhabit the county ; par- 

 ticulars of local variation in species ; with all 

 other necessary information on the subject. 



To be had only from the Hon. Secretary of 

 the Yorkshire Naturalists' Union, 



.MUSEUM, HULL. 



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