SCIENCE-GOSSIP. 



W. WATSON & SONS. 313, High Holborn, London, W,G. 



NEW AND INTERESTING MICROSCOPIC OBJECTS. 



Wiole Water Spider, Argyroneta aquatica 

 Gad Fly, Tabanue boTinus ,. 



Internal Organs and Alimentary System of Blow Ply, Male 

 andPemale .. .. .. .. .. .. each 



HairofPolyxenuB Lagurua, New Test Object .. 



Fleas of Sparrow, Male and Female, on one slide 



Laburnum Moth, Cemoistoma labumella, opaque, very beautiful 



Lilac Moth, Gracilarla syringella, opaque, very beautiful 



New Polycistinatrom Ciuff's Estate, Barbados, transparent 



„ ,, Chlmborazo ,, 



Human Internal Ear, section, showing Cochlea.. 



Pigment Cells in section of Skin of Negro .. .. .. 



Group of about 150 selected perfect Diatoms 



,, ,, 30 Insects' Eg^s .. 



rype Slide of 50 British Foraminifera, each specie with its name 



photographed beneath 

 Set of 12 slides illustrating Physiography in Case 



,, 12 Sections of Typical Rocks in case 

 New Chemical Crystals for use with the Micro- Polariscope, 



Aconitin,Anemonin, Uiatun, Heliotropin .. ,. each 



Capitulum of Sunflower.. 



1 1 

 li 

 18 



Any of the above Objects sent by return on receipt of remittance for price. 

 CLASSIFIED LIST, representing a Stock oj 40,000 first-class Objects, sent post free on application. 



M ICONOSCOPES AND APPARATUS. 



W&ISOIi ft SOBS' TRIPOD EDIHBURQH STUDBHT'B HIOHOSOOPB is suitable for Investigations with the highest powers. The 



quality and workmanship are the finest possible, and It is unequalled for stability and convenience of manipulation by any otbei 



medium sized or Student's Instrument. Price, from £4 5s. 

 WATSON ft SONS' VAN HEURCK MICROSCOPE combines every mechanical convenience, with the utmost precision In all the 



worljing parts, and is unsurpassed for Photo-Micrography and all research of the most delicate nature. 

 WATSON ft SONS' HEW CENTRING UNDERFITTIHQ can be adapted to almost any make of Student's Microscope, and 



permits of the Substage Condenser being made precisely central with the objective. Particulars on application. 

 Full Illustrated Catalogue of Microscopes and Apparatus sent post free on application to 



W. WATSON & SONS, Opticians to Her Majesty's Government, 



318, HIGH HOLBORN LONDON, W.C, and 78, SWANSTON STREET, MELBOURNE AUSTRALIA. 



Awarded the GRAND PRIX at the International Exhibition, Antwerp, 1894 ; 37 Gold and other Medals at International Exhibitions 

 including 5 Highest Awards at the World's Fair, Chicago, 1893, for Excellence of Manufactures. 



LANTERN SLIDES. 



Illustrative of all branches of ZOOLOGY. BOTANY and 

 GEOLOGY: 



PERFECT IN QUALITY. 1 Highest AMri, BruEsels EsbibhioD, 1(37.) 



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. 



BIRKBECK BANK 



SOUTHAMPTON BUILDINGS, CHANCERY LANE, W.C. 



•rWO-AUD A-HALF per CENT. INTBBE8T allowed on DEPOSITS 

 repayable on demand. 



TWO per CENT, on CUHRENT ACCOUNTS, on the minimum monthly 

 bilances, when not drawn below JEIOO. 



STOCKS and SHABES purchaeed and sold. 



SAVINGS DEPARTMENT.. 



For the encouragement of Thrift the Bank receives Bmailsiuni on deposit 

 and allows Interest monthly on each completed £\. 



BIBKBEGK BUILDING SOCIETY. 

 HOW TO PtJBCHASE A HOUSE FOB TWO GUINEAS PEK MONTH 



BIEKBECK FREEHOLD LAND SOCIETY. 

 HOW TO PUHCHASB A PLOT OF LAND FOB Ss. PEB MONTH, 

 rhe BIBKBEGK ALMANACK, With full particulars, post free. 



FBANCIS BATENSCBOFT, Manager. 



TO NATURALISTS 



W. F. H. ROSENBERG, 



Traveller Naturalist, 

 48a, CHARING CROSS ROAD, LONDON, W.C. 



Every Description of Apparatus for all branches of Natural History. 



British Lepidoptera and Birds' Eggs, Exotic Mammal and Bird 

 Skins, Reptiles, etc., in spirit, and Insects of all orders. 



Cabinets, Store Boxes, Setting Boards, Pins, etc., at lowest 

 prices. 



Collectors of Lepidoptera and Birds' Eggs wishing to complete 

 their collections are invited to inspect my large and varied stock. 



tS^" ILLUSTRATED CATALOGUE OF APPARATUS POST FREE. 



MAGI C LANTE RNS, 



NO SMELL. NO SMOKE. NO BROKEN GLASSES. 



aRAND 

 RESULTS 



THE MARVELLOUS 



PAMPHENOOS. 



MARVELLOUS PAMPHENGOb.— The finest Oil-lighted Lan- 

 tern extant ; equals Limelight ; stood the test against all 

 Imitations. Over 3,000 sold— supplied to the Government and 

 School Boards. Particulars free. The Universal Lantern, 

 4-inch double Condensers, Portrait Lenses, Rack and. Pinion, 

 tour-wlck Lamp, reduced to i8s. 6d. 



GILCHRIST SCIENCE LANTERN.— Oxyhydrogen Hicro- 

 Bcopes, Polarlscopes, &c. The Cinematograph for Living 

 Pictures, 



ELEGANT MAHOGANY BIUNIAL, brass fronts, £6 los. ; 

 blow-through Safety Jets, 8s. 6d. ; mixed Gas Jet, 12s. 6d. Mr. 

 Hughes's Grandly Illustrated Catalogue, over 160 Original Wood 

 Engravings. Price, 6d. ; Postage, 3d. Cheapest, Best and Most 

 Reliable Outfits In the world. 



THE ART OF PROJECTION, AND COMPLETE MAGIC 

 LANTERN MANUAL, by an Expert. Over 100 fine Illustrations, 

 with priceless wrinkles. How to use Oil, Limelight. Dissolving, 

 Electric, Microscopic and Polarising Lanterns, Slide Making. 

 Painting, &c. Prof. Malden says :—" Thoroughly practicai 

 Work ; should be studied by the experienced operator and 

 amateur alike. Price, bound In cloth, 3s.-6d. ; Postage, 5d. 



W. C. HUGHES, Patenteb and Spboialiit. 

 Brewster House, Mortimer Road, KIngsland, London, N, 



Skcond-Hand Lanterns and Slides — Bargains. 



ILLUSTRATED LISTS FREE. 



60 Beautifully Coloured Slides on loan for 3/- 



BORD'S PIANOS 



23 per cent, discount for cash or 14s. 6d. per month 

 (second-hand. lOs. 6d. per month), on the three years' 

 hire system. Illustrated Lists free, of CHAS. STILES 

 & CO., 40 and 42, Southampton Row, London 

 W.C. Pianos exchanged. 



