SCIENCE-GOSSIP. 



W. WATSON ft SONS, 373, High Holborn, London, W.G. 



NEW AND INTERESTING MICROSCOPIC OBJECTS. 



Whole "Water Spider, Argyroneta aquatica 

 Gad Fly, Tabanus bovinus 



Internal Organs and Alimentary System of Blow Fly, Male 

 and Female . . . . . . . . . . . . each 



Hair of Polyxenus Lagarus, New Test Object 



Fleas of Sparrow, Male and Female, on one slide 



Laburnum Moth, Cemoistoma laburnella, opaque, very beautiful 



Lilac Moth, Gracilaria syringella, opaque, very beautiful 



New Polycistinafrom Ciuff's Estate, Barbados, transparent 



,. ,, Chimborazo „ "'., 



Human Internal Ear, section, showing Cochlea. . 



2 1 Pigment Cells in section of Skin of Negro 



2 Group of about 150 selected perfect Diatoms 



„ „ 30 Insects' Eggs .. 



3 6 rype Slide of 50 British Foraminifera, each specie with its name 



16 photographed beneath 



2 Set of 12 slides illustrating Physiography in Case 



16 ,, 12 Sections of Typical Rocks in case 



16 New Chemical Crystals for use with the Micro Polariscope, 



16 Aconitin.Anemon'n, thatun, Heliotropin ,. .. each 



16i Capitulum of Sunflower.. ... 



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

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



MICROSCOPES AND APPARATUS. 



WATSON * SOUS' TRIPOD EDINBURGH STUDENT'S MICROSCOPE 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 other 



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

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



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

 WATSON ft SONS' NEW CENTRING UNDERFITTING 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, 



813, 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. 



NEW MICROSCOPICAL PREPARATIONS 



Write to the Jersey Biological Station for New Lists of the 

 Cheapest and Best Microscopical Slides in the market in 



BOTANY AND MARINE ZOOLOGY 



Some Specialities are — 



1. Set of 48 specially chosen Slides illustrative of Ele- 



mentary Botany. — Specially suitable for teachers' and 

 students' use. Post free £1 Is. 



2. "Micro Studies in Marine Zoology and in Botany." 



Series of slides accompanied by descriptive letterpress and 

 original drawings and photomicrographs. Particulars on 

 application. 



3. Expanded Zoophytes and Polyzoa. Is. to Is. 6d. per slide. 



4. Sections of entire Flower and Leaf Buds and double-stained 



sections of Stems and Leaves. From 6d. each. 



Hundreds of grand 'slides at 5s. a dozen, all perfect and mostly 

 double-stained. 



SPECIAL DISCOUNTS during next two months. 



LANTERN SLIDES in Zoology and Botany in great variety. 

 Price 9s. per dozen. List on application. 



JAMES HORNELL, Biological Station, JERSEY. 



Established 1851. 



BIRKBECK BANK 



SOUTHAMPTON BUILDINGS, CHANCERY LANE, W.C 



TWO-AND A-HATYF per CENT. INTEEE8T allowed on DEPOSITS 

 repayable on demand. 



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

 balances, when not dravm below £100. 



STOCKS and SHARES purchased and sold. 



8AVING8 DEPARTMENT. 



For the encouragement of Thrift the Bank receives small sums on deposit 

 and allows Interest monthly on each completed £\. 



BIRKBECK BUILDING SOCIETY. 

 HOW TO PURCHASE A HOUSE FOR TWO GUINEAS PER MONTH 



BIBKBECK FREEHOLD LAND SOCIETY. 

 HOW TO PURCHASE A PLOT OF LAND FOB 5 8 . PER MONTH. 

 The BIRKBBOE ALMANACK, with full particulars, post free. 



FBANCI8 BATENSCROFT, Manager. 



THE ZOOLOGICAL SOCIETY'S GARDENS, 



REGENT'S PARK, 



are OPEN DAILY (except Sundays), from g a.m. till Sunset 



Admission is.; on Mondays, 6d. Children 6d. 



Amongst the recent additions are three Lion Cubs, presented by 



C. A. Osborne, Esq., and two Ivory Gulls from Spitzbergen. 



ROYAL BOTANIC SOCIETY'S GARDENS, 



REGENT'S PARK. 



GARDENS OPEN DAILY from 9 a.m. to Sunset. SUNDAYS 

 from 2 p.m to Sunset. Admission by Orders from Fellows of the 

 Society only. 



MAGI C LANTE RNS. 



NO SMELL. NO SMOKE. NO BROKEN GLASSES. 



GRIND 

 RESULTS. 



THE MARYELLOUS 



PAMPHENGOS. 



MARYELLOUS 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-lnch double Condensers, Portrait Lenses, Rack and Pinion, 

 four-wlck Lamp, reduced to 18s. 6d. 



GILCHRIST SCIENCE L ANTE RN.-Oxy hydrogen Micro- 

 scopes, Polariscopes, &c. The Cinematograph for Living 



ELEGANT MAHOGANY BIUNIAL, brass fronts, £6 10s. ; 

 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 practical 

 Work ; should be studied by the experienced operator and 

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

 W. C. HUGHES, Patented and Specialist, 



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



Second-Hand Lanterns and Slides — Bargains. 



ILLUSTRATED LISTS FREE. 



SO Beautifully Coloured Slides on loan for 3/- 



A READABLE SCIENTIFIC BOOK ON INSECTS. 



424 pp. with 21 Illustrations. Cloth, 2s. 6d., post free. 



ELEMENTS OF ENTOMOLOGY 



An Outline of the Natural History and Classification of 



British Insects. 



By WILLIAM S. DALLAS, F.L.S." 



GURNEY & JACKSON, 1, Paternoster Row, E.C. 



(Successors to Mr. VAN VOORST). 



