G. A. BENTALL, 



NATURAL SCIENCE ESTABLISHMENT 

 (ENTOMOLOGY), 



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



ENTOMOLOGICAL Supp lies of all kinds. 



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

 Books, Palaearctic, Indo-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. 



1st Series, 1864-1889.— Parts, 3/6 net each ; Volumes, 22/6 net. 

 Vols. 1 to 25. bound 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. 



3kd Series, Vol. 1 (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 ; A^jIs. 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 3/'6 extra. 



Subscription for 1921 (payable in advance), 15/- net, 2^ostfree. 



All applications for the above should be made to — 

 Messrs. GURNEY & 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 



