G. A. BENTALL, 



NATURAL SCIENCE ESTABLISHMENT 

 (ENTOMOLOGY), 



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



ENTOMOLOGICAL SUPPLIES OF ALL KINDS. 



Reduction in Prices of Glass-bottomed Boxes. 



11" -IS.'' 16" 17/1 ol.'' ol" Ql" 



l-g 1^ iff Ig Z^ ^2 Ofj 



6j6 6 9 7i6 8/; 916 lO/tl 14/6 doz. 



7d. 7^d. 8d. Dd. lOd. 1 td. J/3 each. 



Neir materi(d in Hijmenoptem, Hemiptem-Homoptem, Orthoptera, Odvnahi, and 



Dipt era from the West Indies and British Guiana. 



Large Collection of African Cetonids and Longicorn Coleoptera just received. 



New Section. — Palaearctic and Exotic Birds' Skins and Eggs, also Eeptiles. 



[Sei)teinber, 1921. 



REVISED PRICES FOR BACK VOLUMES. 



J ST Skiues, LbG4-lSy9.— 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 Seeies, 1890-191-1. — Parts, 2/0 net each ; Volumes, 20,- net each, 



5/ 

 Vols. 1 to 25 (Vols. 26 to 50 of the entire Series). 



bound 3/6 extra. 



3ej) Series, Vol. ] (1915). — Parts, 2/6 net each ; Vols. 17/6 net each, 



bound 3 6 extra. 



„ 2 (191(3).— „ 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 a920).— „ 2 6 net each ; Vols. 17/6 net each, 



bound 3/6 extra. 

 Subscription for 192 L (payable in advance), 15;- net, pos/'^/'r^i". 

 Cloth cases for binding the 1920 Volume can be sui)plied at 2 - net. post free. 

 All applications for the above should be made to — 

 Messrs. GURNET & JACKSON, 33 Paternoster Row, London, E.G. 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 



