G. A. BENTALL, 



NATURAL SCIENCE ESTABLISHMENT 

 (ENTOMOLOGY), 



Dudley House, Southampton St., Strand, London, W.C.2. 

 ENTOMOLOGICAL SUPPLIES OF ALL KINDS. 



Any of the following Circulars sent without charge : Lists of Apparatus, 

 Books, Palaearctic,"lndo- Australian, African or American Lepidoptera. 



Orders can now be received for Peat, Glass-Bottomed Boxes, 

 Cork, Glass Tubes, Carton Boxes, Lined Peat or Cork, 5s. Also 

 New^ Stock of Setting Boards, Store Boxes, Wood Postal Boxes. 



LEPIDOPTERA PURCHASED FROM ALL PARTS OF THE WORLD. 



REVISED PRICES FOR BACK VOLUMES. 



isT Series, LS(34-1S89.— Parts, 3/6 net each ; Volumes, 22/6 net, 

 Vols. 1 to 25. boiuid 3/6 extra. 



These can be obtained in many cases in complete Volumes. Many of the 

 single parts can also be supplied separately, Particulars on application 

 to the Publishers. 



2nd Series, 1890-1914.— Parts, 2/6 net each ; Volumes, 20/- net each. 

 Vols. 1 to 25 (Vols. 26 to 50 of the entire Series). bound 3/6 extra. 



8rd Series, Vol. ] (1915).— Parts, 2/6 net each ; Vols. 17/6 net each, 



bound 3/6 extra. 



„ 2(1916).— „ 2/6 net each ; Vols. 17/6 net each, 



bound 3/6 extra. 



„ 3 (1917).— „ 2/6 net each ; Vols. 17/6 net each, 



bound 3/6 extra 



„ 4 (1918).— „ 2/6 net each; Vols. 17/6 net each, 



bound 3/6 extra. 



„ 5 (1919).— „ 2/6 net each; Vols. 17/6 net each, 



bound 3/6 extra 



„ 6 (1920).— „ 2 6 net each; Vols. 17/6 net each, 



bound 8/6 extra. 



Subscription for 1921 (payable in advance), 16/- net, post free. 

 Cloth cases for binding the 1920 Volume can be supplied at 2/- net, post free. 

 All applications for the above should be made to — 



Messrs. GUENEY & JACKSON, 33 Paternoster Row, London, E.C. 4. 



NATURAL HISTORY. 



We keep in Stock everything required by 



COLLECTORS OF BIRDS' EGGS, INSECTS, 

 PLANTS, Etc, 



CATALOGUES FREE. 



WATKINS & DONCASTER, 36 Strand, London, W.C. 2, England 



