THE MICROSCOPICAI. JOURNAL ADVERTISER. 



jyl±(JJrCOIS<JOJbM U 013JJ±i<JTH. 



-W. TVATSON & SONS, 



3 13 High Holborn, London, W. C. 



XOTE. Tbpre is no clnty whatpver on Microscopic OV),iPcts entering tlio United States, provided they ara 



for Piivate and not Trade purposes, as per dicision of the Secretary of the Treasury, reported in the Syuop- 

 tjcal Series of Treasury decisions -3.95S. Aujeriean Microscopists can then, by ordering direct from un, 

 avail themselves of our comprehensive stock at London prices 



Biicillus of Leprosy iu Section of Skin S .75 



Bacillus of Tetiiuiis, 75c ; Uacilliisof Diphllioria iu Meinbriine ^liofHer) 7.'> 



Bacillus ofSurne Fever, *1 ; Biicillus mallei (Glanders) l.'i') 



liiiigworm of Scalp — Tricophyton tonsurans — showing its elteet on the liuir 45 



HeaTi of Oysticercus from Hare. Showing Uooklets 45 



Fluke from Liver of Sheeli, 45c; Segment of Tape-Worm 45 



lle;id of Teenia medio-caiiellata, 7oc; Anchilostoma diiodenale, a rare entozoon 45 



Feliir;a Saiuiuinis homiuis — uocturua 50 



Verv flue Horizontal Section of entire Foot of Human Fcetus ".t(l 



Very fine Horizontal Section of entire Hand of Human Fcetiis '.Ml 



Marine Flea-s (Asterope Maria") exhibiting beautiful crystaLs of carbonate of lime iu body 5u 



I'hantom Shrimp, caprella, 4lie; Young Starlet, Asteriua ' 4(i 



Kotifers, mounted by a new process. Notops, 'JOc; Asplauchua tj5 



Hyilrozoa — I'annaria Carolina. Very striliiug , 40 



Aery beautiful Sections through entire eyes ot Drone Fly (Eristalis); Dragon Fly (Libelulla); Cockcliafer 



(Mellolontha); Spider (Epeira), each .50 



Palate of I'aludina vivipara. Very beautiful 45 



Xew Longitudinal Sections of Teeth of Djlphiu, Cat, Sawflsh, Lion Shark, Pig, Orocodile, Piketisli, SI'eep, 



Hare, etc , each 45 



Section of the whole Jaw of Cat or Mole, with all the teeth in situ, each 1 .50 



Winter Bud of Plane Tree, double stained, very etlective .5)^ 



Slides of Marchantia pulymorpha, Elaters and Spores, Gemuiie, Antheridia, Archegouia, Stomatu in Thallus, 



Section of Thallus, each 25 



Fertile Spike of Selaginella, '^oc; Licmophora 45 



Set of 24 Botanical Slides (li.lemeutary Tissues) specially arranged for students , (i.iili 



.Set of 24 Botanical Slides (Comparative Anatomy) specially arranged for students S.15 



Very perfect and beautitul groups of about 150 Liatoms from either of the following localities; Corsica, Bori, 



Glengore (Jutland), Uaniaia (N. Z.) each, l.f>5 



Set of 12 Test Objects suitable for all powei-s 5.25 



Type Slide of 400 diBereut species of Liatouis, the name pliutogiapned on tlie Slide, under eucli specie 20.00 



Group of about lUO Sponge Spicules from St. Peter Hungary 0.U5 



Set of 9u Specimens, specially arranged for Medical Officers of Heallli 'M.W 



Set of Mi Specimens, specially arranged for Medical Officers ot Health 12.50 



Test for adulterations : — Pure Pepper, Cottee. Chicory, Mustard, each 0.25 



Scales and Hairs of Insects arranged to represent Sprigs of Flowers, riouquets. Vases of Floweis, <Jic., 



$1.50, 82 50, 85.25, and 810. 5U 



Very beautiful groups of Eggs of Butterflies, Moths, &c. Striking tor Jiixhibitiou purposes, <fl.40 and 82.65 



.\"dd cost of mailing and registration to above prices : 1 slide, 80.1l; ; U slides, 80.45 ; 12 slides, 5f0.75 ; 24 slides 

 ;'.25 ; 72 slides, $3.50. Larger parcels can be sent by express parcels sei vice at very low rates, but its mailing is 

 eferable, being much quicker, safer, and saving broker's charges. 

 .\ny of the above objects sent by return on receipt of remittance for price and cost of mailing 



CLASSIFIED LIST OF A STOCK OF 40.00U FiKST CLASS OBJECTS, probably the fiiie.st in 

 tlie world, representing every branch ol' research, lorwarded post tree on application. 

 NEW APPARATUS POK MiCKOdCOPEtt, 



1 lie Ramsden Screw Micrometer, having the fixed web at side of the field as recommended by I)r. Dal- 

 linger, Adjustable Eye Lens, so that the Webs uiay be accurately focussed, constructed almost entirely 



of Alumiuium quite new 18.75 



.N'ew Projection Eyepieces for Fholo. Micrography I'owers, 2, 4, 3, and U, each 10.00 



N'ew Parallel Keversible Compressor, Constructed in Aluminium 20. 05 



-•ew Aplanatic Maguitiere, giving very large and flat field, e.xquisite deflnilioii and good working distance 



x6, xlO, x20 diameters, each 3. 05 



MICROSCOPES, OBJECTIVES, AND APPARATUS for every class 

 of research, of the finest quality only. 



FUI^I, II^LUSTRATED CATAI^OGUE OF MICROSCOPES, &c., 



SENT POST FREE ON APPI,ICATION TO 



"v;r. "v^.A.Tsonsr ac soicrs, 



OPTICIANS TO H. M. GOVEKNMENT, 



313 High Holborn, London, W. C, and 78 Swanston St., Melbourne, Australia. 



Established 1837. 



Awarded Two Gold Medals. Paris Universal Exhibition, 1889 ; two Diplomas of Honor for Microsconei 

 and Microscopic Objects, Antwerp International Exhibition 1891 ; and 26 Gum and other Medai s at thl 

 principal International Exhibitions of the World. i>i>!.i>al9 at tne 



