THE MICROSCOPICAL JOURNAL^ ADVERTISER. 



M-KJJUOJ^SCJOJi^XiJ OJi^J -hJCJTiS. 



Ur. WATSON & SONS, 



313 High Holborn. London. W. C. 



NOTE — Thore is no duty whatever on Microscopic Objects entering tlie United States, provided they ara 

 for Piivate and not Trade purposes, as per decision of the Secretary of tlie Treasury, reported in the Synop- 

 tical Series of Tri-asury decisions- 3.95S. American Microscopists can then, by ordering direct from us. 

 avail themselves of ourcomprehensve stock at Loudon prices 



Bacillus of Leprosy in Section of Skin $ -J^ 



Bacillus of Tetanus, Toe ; Bacillusof Diphtheria in Jlemliraiie (I,offler) 7,) 



Bacillus of Surue Fever, SI ; Bacillus mallei (Glanders) L25 



Ringworm of Scalp — Xncophyton tonsurans — showing its etfect on the hair 45 



Head of Oysticercus from Hare. Showing Hooklets 45 



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



Head of Tienia medio-canellata, 75c; Anchilostoma duodenale, a rare entozoon 46 



Felaria Sauqiiinis hominis — nocturna ^ 



Very flue llorizoutid Section of entire Foot of Human Fo-tus 9" 



Verv tine Horizontal Section of entire Hand of Human Ftetus i"' 



Marine Fle;is (Asterope Maria*) exhibiting beautiful crystals of carbonate of lime in body 50 



Phantom Shrimp, caprella, 4uc; Young Starlet, Asterina 4'i 



Rotifers, mounted by a new process.' Notops, 90c; Asplanchna •'•'• 



Hydrozoa — Paunaria Carolina. Very striking 40 



Very beautiful Sections through entire eyes of Drone Fly (Kristalis); Dragon Fly (LibeluUa); Cockchafer 



(Mellolontha); Spider (Eneira), each -"J'* 



Palate of Paludina vivipara. Very beautiful 4o 



New Longitudinal Sections of Teeth of Djlphin, Oat, Sawfish, Lion Shark, Pig, Crocodile, Pikefish, Sheep, 



Hare, etc , each •^•'^ 



Section of the whole .law of Uat or Mole, with all the teeth in situ, eacli .• 1 •'•" 



Winter Bud of Plane Tree, double stained, very eftective •''" 



Slides of Marchantia polymorpha, Elaters and Spores, Gemmw, Antheridia, Arcliegonia, Stomata in Tliallus, 



Section of Thallus, each 25 



Fertile Spike of Selagtuella, 25c; Licmophora 45 



Set of 24 Botanical Slides (Elementary Tissues) specially arranged for students 6.W) 



Set of 24 Botanical Slides (Comparative Anatomy) specially arranged for students ■• 8.15 



Very perfect and beautiful groups of about 150 Diatoms from either of the following localities: Corsica, Bori, 



Glengore (Jutland), Oamara (N. Z.) each, }*^' 



S't of 12 Test Objects suitable for all powers 'n'^n 



'lype Slide of 4tHJ dift'erent species of Diatoms, the name photographed on the Slitle, under each specie 20 UO 



Group of about 100 Sponge Spicules from St. Peter Hungary _ ^l-*^^' 



Set of '.10 Specimens, specially arranged for Medical Officers of Health 36.90 



Set of t!ti Specimens, specially arranged for Medical Officers of Health 12.50 



Test for adulterations : — Pure Pepper, <Jott'ee. Chicory, Mustard, each • '^•'^^> 



Scales and Hairs of Insects arranged to represent Sprigs of Flowers, liouijiiets. Vases of Flowers, Ac, 



$1.50, $2 50, 85.25, and $10.50 



Very beautiful groups of Eggs of Butterflies, Moths, &c. Striking for Exhibition purposes, $1.40 and $2.05 



Add cost of mailing ana registratiim to above prices : 1 slide, $0.13 ; 6 slides, 80.45 ; 12 slides, fO.75 ; 24 slides 

 81.25 ; 72 slides, 8^^.50. Larger parcels can be sent by express parcels service at very low rates, but its mailing is 

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

 Any of the above objects sent by return on receipt of remittance for price and cost of mailing 



CLASSIFIED LIST OF A STOCK OF 40.000 FIRST CLASS OBJECTS, probably the finest in 

 the world, representing every branch of research, forwarded post free on application. 

 NEW APPARATUS FOE MICROSCOPES. 



The Ramsden Screw Micrometer, having the fixed web at side of the field as recommended by Dr. Dal- 

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



of Aluminium quite new 18.(5 



New Projection Eyepieces for Photo. Micrography Powers, 2, 4, 3, and 6, each lO.CJO 



New Parallel Keversible Compressor, Constnicted in Aluminium • • 20.(io 



New Aplanatic Magnifiers, giving very large and flat field, exquisite definition and good working distance 



xti, xlO, x20 diameters, each ^-^^ 



MICROSCOPES, OBJBCTIVieS, AND APPARATUS for every class 

 of research, of the finest quality only. 



FUI<I/ II<I,USTRATSD CATAlyOGUE OF MICROSCOPES, &c., 



SENT POST FREE ON APPLICATION TO 

 OPTICIANS TO H. M. GOVERNMENT, 



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 Microscopes 

 audMicroscopic Objects. Antwerp International Exhibition, 1891 ; and ■2G Gold and other Medals at the 

 pi-incipal International Exhibitions of the World. 



