SCIENCE-GOSSIP. 



111 



WATKINS AND DONCASTER, 



Naturalists and Manufactu rers of Entomologica l Apparatus and Cabinets. 



N.B. — For Excellence and Superiority of Cabinets and Apparatus, references are permitted to distinguished 



Patrons and Colleges, &c. Catalogue (66 pp.) sent post free on application. 

 Now ready — The Exchange List and Label List, Compiled by Ed. Meyrick, B.A., F.L.S., F.E.S., according 



to his recent "Handbook of British Lepidoptera." Exchange Lists, l£d. each, 8d. per doz., or 



is. per 100. Label Lists, Is. 6d. each. 



Plain Ring Nets, Wire or Cane, including stick, 1/3, 3/-, 2/6 



Folding Nets, 3/6 and 4/- 



Umbrella Nets (self-acting), •/]- 



Pocket Boxes, 6d. ; corked both sides, gd.. 1/-, and 1/6. 



Zinc Relaxing Boxes, gd., 1/-, 1/6, and 2/- 



Nested Chip Boxes, 4 dozen, 8d., i/g gross 



Entomological Pins, mixed, 1/6 per oz. 



Sugaring Lanterns, 2/6 to 10/6 



Sugaring Tin, with brush, 1/6, 2/- 



Sugaring Mixture, ready for use, 1/9 per tin 



Mite Destroyer (not dangerous to use), 1/6 per lb. 



Store Boxes, with Camphor Cells, 2/6, 4/-, 5/-, and 6/- 



Dltto, Book Pattern, 8/6, 9/6, and 10/6 

 Setting Boards, fiat or oval, i-lir, 6d. ; ij-ln., %d.\ ij-ln., gd. ; 



2-ln., iod. ; 2j-in., 1/-; 3-ln., 1/2; 3j-In., 1/4; 4-In., 1/6; 



4$-in., 1/8 ; 5-in., i/io. Complete set of 14 boards, 10/6 

 Setting Houses, 9/6 and 11/6 ; corked back, 14/- 

 Zinc Larva Boxes, gd., 1/- Brass Chloroform Bottle, 2/- 



Breeding Cage, 2/6, 4/-, 5/- and 7/6 



All Articles enumerated are kept in stock, and 



Taxidermist's Companion, i.e., a pocket leather case, containing 



most useful instruments for skinning, 10/6 

 Scalpels, 1/3 ; Label Lists of Birds' Eggs, 3d., 46., 6i. 

 Scissors, per pair, 2/- Setting Needles, 3d. and 6d . per bos 



Coleopterist's Collecting Bottle, with tube, 1/6, 1/8 

 Botanical Cases, japanned double tin, 1/6, 2/9, 3/6, 4/6, 7/6 

 Botanical Paper, 1/1, 1/4, i/g and 2/2 per quire 

 Insect Cases, imitation mahogany, 2/6 to 11/- 

 Cement for replacing Antennae, 6d. per bottle 

 Forceps for removing Insects, 1/6, 2/-, 2/6 per pair 

 Cabinet Cork, y x 3J, best quality, 1/4 per dozen sheets 

 Pupa Diggers, In leather sheath, 1/9. Insect Lens, if- to 8/- 



Glass Top and Glass Bottomed Boxes, from 1/4 per dozen 

 Label Lists of British Butterflies, id. 



Ditto Land and Fresh- Water Shells, id. 



Egg Drlls, id., 3d., 1/- ; Metal Blow-pipe, $d. & 6d. 

 Our New Label List of British Marco-Lepidoptera, with Latin and 

 English Names, 1/6. Our new Catalogue of British Lepidoptera 

 (every species numbered, 1/- ; or on one side for Labels, 2/ 

 can be sent immediately on receipt 0/ order. 



The "DIXON" LAMP-NET (Invaluable for taking Moths of Street Lamps without climbing the lamp-posts, 2/6. 



4 Drawers 

 6 .. 



CABINETS. 



The following are the prices of a few of the smaller aiz 

 Minerals and Dried 

 Plants, Fossils, &c. 



Insect. 

 13/6 - 

 i 7 /6 . 



12/- 



1 6/6 



io/6 

 15/- 



Special Show Room. 



; for measurements and larger sizes see Catalogue. 



,„„, i?_«_ Minerals and Dried 



Insect. Eggs, Ptalltei FoM „ 8i &c . 



8 Drawers.. 33/- 

 10 „ .. 45/- 



30/- 

 56/- 



25/- 

 45/- 



A LARGE STOCK OF INSECTS AND BIRDS' EGGS. 



Birds, Mammals, &c, Preserved and Mounted by First-class workmen. 



36, STRAND, W.C. (Five Doors from Charing Cross). 



ROSS' NEW 



' Industrial ' 

 Microscope. 



Specially constructed for the use of Agri- 

 culturists.examination of Raw Materials, 

 Produce, Textile Fabrics, and direct 

 observations of every kind that do 

 ,__ not require oblique illumination or 

 special arrangements. 

 A Fine Adjustment may be added at any time, and Accessories 

 as per Catalogue. 



Piice with inclining limb, the choice of ij inch, i inch 

 or \ inch Objective, Eyepiece, Mirror, Rack Adjust- 

 ment, Substage Plate and Glass Dish £3 3 



Additional Objectives as named above each 12 



Fine Adjustment 1 J- 



Iris Diaphragm, fitting stage 10 



Condensing Lens, fitting stage 5 



Double Nosepiece 1" 



White wood case, stained 5 



Mahogany case ... 10 



Send for COMPLETE CATALOGUE of 



Microscopes, Telescopes, Photographic Lenses, 



Cameras, and Apparatus of all descriptions. 



GOLD MEDALS AND HIGHEST AWARDS AT ALL 

 GREAT EXHI BITIONS. 



ROSS, Ltd., Ill New Bond St., LONDON, W. 



Optical Works :— Clapham Common,. S.W. 



Contractors to Her Majesty's Governments, Britishb' Colonial, 



' also to tlie principal Foreign Governments. 



ESTABLISHED 1830. 



JUST PUBLISHED. 

 With 252 Illustrations. 8vo, price 21s. net, 



THE STRUCTURE & CLASSIFICATION 

 OF BIRDS. 



By FRANK E. BEDDARD, M.A., F.R.S., 



Prosector and Vice-Secretary of the Zoological Society of London 



LONGMANS, GREEN and CO., 



London, New York and Bombay. 



LANTERN SLIDES, 



Illustrative of all branches of ZOOLOGY, BOTANY and 

 GEOLOGY. 



PERFECT IN QUALITY. <Highe»t Award, Brussels Exhibition, 1897.) 



CHEAPEST IN PRICE. 



5,000 SUBJECTS IN STOCK. 



PRICE— 9/- per doz. Plain ; 15/- per doz. Coloured. 

 On Hire at 1/- per doz. Plain; 1/6 per doz. Coloured. 

 List Post Free on Application. 



MICROSCOPY, 



Specialities : 

 48 Botanical Teaching Preparations in Case ... £110 

 48 Zoological „ „ „ „ ... £110 



Thousands of miscellaneous Slides in Stock. 

 Price List on application. 



JAMES HORNELL, BIOLOGICAL LABORATORY, JERSEY. 



