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During the next few months it is hoped to insert the following articles :— 
Part 6 of A Gritical Gataiogue of Lincolnshire Plants, ete.—Rev. E. ApRIAN WoODRUFFE- 
ACOCK, 
Erosion of the Yorkshire Coast in 1894.— Rev. E. Mauve Cote, M.A., F.G.S 
Report on Yorkshire Botany for the Season of 1894,.—Acsert H. Paw 
Part 6 of The Constituents of the North Lancashire Flora, 1597- joes Lee Petty. 
The Yorkshire Derwent and its Piabiee ibaa Hirke 
Report en Yorkshire Botany for 1890.—C. P. Hosxkrrk, F.L.S., and P. F. Lee 
Report on Yorkshire Mosses and Hepatics for 1892.—M. B. Srarer, F.L.S. 
The Mammals of Ashbourne, Derbyshire.—Lione. E. Apams, B.A. 
The Rarer Piants of Walkeringham Neighbourhood in Nottingham, Lincolnshire, and 
Yorkshire.—The Late Rev. J. K. Mirver. 
In Demy 8vo., Cloth, pp. 250. Price 12/- (U.S.A. 3-50). 
AN INTRODUCTION TO THE STUDY OF THE 
DIATOM ACEH A, 
By FREDERICK WM. MILLS, F.R.M.S., 
Author of * Photography Applied to the Microscope,’ etc 
WEEE A BIBLIOG RAP EY . 
By JULIEN DEBY, F.R.MLS. 
LONDON: ILIFFE & SON, 3, St. Bride Street, Ludgate Circus. 
WasHINGTON, D.C.: THE MicroscopicaL PuBLISHING COMPANY. 
‘NATURALIST’ REPRINTS—WNo. J. 
LAND & FRESHWATER MOLL MOLLUSCA OF LANCASHIRE. 
A= ROBERT S STANDEHW. 
Ba $ paper contains not only Mr. Standen’s own observations, but those of Messrs. R. D. 
ishire, T. Rogers, W. ve Heathcote, J. A. Hargreaves, F.C. Long, H. St anes. and 
evs conchologists, and the observations cance in son's list of ce, and in Hardy's 
list of 1864 and 1865, are noone for comparison 
Price 9d. (By post, 94d.) 
To be had from the Publishers of the ‘Naturalist,’ Sunny Bank, Leeds. 
NOMENCLATURE OF COLOURS 
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AND ORNITHOLOGISTS’ COMPENDIUM. 
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