In order to expedite this important work, those who have 
not already subscribed are urged to do so NOW. 
An entirely New Work bringing the Vegetational History 
of the County quite up-to-date. 
THE VEGETATION OF YORKSHIRE 
Its History and Associations on the lines of Botanical Survey, 
based on the Geologic and Phyto-palaeologic remains : being an 
examination into the sources, the presence or passing of the 
Floristic Constituents — their When, How and Where ; being also 
a Supplement to previous “Floras” of York, and a list of the 
Localities and Species, newly classified, “New” to the County or 
some of its river-basins since 1888. 
By F. ARNOLD LEES 
M.R.GS.Eng., L.R.GP.Lond. 
Demy 8t>o, on white unsized paper, about 500 pages, 
to be subscribed at 12/6 net ( 16 /- net strictly after publication) 
LONDON 
A. BROWN & SONS, Ltd., 5, Farringdon Avenue, E.C. 
And at Hull and York. 
BOOKS WANTED. 
The British Naturalist. Set (1891 — 1894). 
The Field Naturalist and Scientific Record. Set. 
The Journal of the Keighley Naturalists’ Society. Set. 
Quarterly Transactions Barnsley Naturalists’ Society. Vol. I., pts. 1-2 ; 
Vol. III., pt. 4 ; Vol. IV.', pts. 1-2. 
Reports, Malton Naturalists' Society. Set. 
The Naturalists’ Journal. Vols. I. -III. (1892-4). 
Transactions and Monthly Circular, Huddersfield Naturalists’ Society. Set. 
Reports, Goole Scientific Society. 
Cleveland Lit. & Phil. Society's Transactions. Science Section or others. 
The Naturalists' Record. Set. 
The Natural History Teacher (Huddersfield). Vols. I. -II. 
The Economic Naturalist (Huddersfield). Vol. I. 
The Naturalists’ Guide (Huddersfield). Set. 
The Naturalists’ Almanac (Huddersfield). 1876. 
The Naturalists' Gazette. Set. 
Wesley Naturalist. Set. 
Proc. Yorkshire Naturalists’ Club (York). 1867-70. (Set). 
Keeping'’ s Handbook to Natural History Collections (York). 
“ Ripon Spurs, ’ by Keslington. 
Apply:— Editor, The Museum, Hull. 
