TH^ MICROSCOPICAL ADVERTISER. 



JVllCiriOSCOPlC OBJJi^GTS. 



TXT. "WATSON & SONS, 



3 I 3 High Holborn, London, W. C. 



NOTE. There is no duty whatever ou Microscopic Objects entering tho United States, provided they are 



for Private and not Trade purposes, as per decision of th*- Secretary of the Treasury, reported in the Synop- 

 tical Series of Treasury decisions— 3,958. American Microscopists can then, by ordering direct from ua, 

 avail themselves of our comprehensive stock at London prices 



Bacilhis of Leprosy in Section of Skin $ .75 



Bucillus of Tetanus, 75c ; Bacillusof Diphtheria iu Membrane (Loffler) 75 



Bacillus of Surne Fever, SI ; Bacillus mallei (Glanders) 1.25 



Kiug worm of Scalp — Xricuphytun tonsurans — showing its effect ou the hair 45 



Head of Cysticeicus from Hare. Showing Hooklets 45 



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



Head of Tcenia medio-canellata, 75c; Anchilostoma duodenale, a raie eutozoon 45 



Felaria Sanquiuis hominis — nocturna 50 



Very flue Horizoutnl Sectiou of entire Foot of Human Foetus 90 



Very fine Horizontal Section of entire Hand of Human Foetus. 90 



Marine Fleas (Astero^* Maria;) exhibiting beautiful crystals of carbonate of lime iu body 60 



Phantom Shrimp, caprella, 4Uc; Young Starlet, Asterina 40 



Eutifers, mounted by a new process. Notops, 90c; Asplauchna 65 



Hydrozoa — I'annaria Carolina. Very striking 40 



Very beautiful Sections through entire eyes of Drone Fly (Eristalis); Dragon Fly (Libelulla); Cockchafer 



(Mellolontha); Spider (Kpeira), each 50 



Palate of Paludina vivipara. Very beautiful 45 



New Longitudinal Sections of Teeth of Dolphin, Cat, Sawfish, Lion Shark, Pig, Crocodile, Pikefish, Sbeep, 



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 flane Tree, double stained, very eliective 50 



Slides of Jlarchantia polymoipha, Elaters and Spores, Gemm», Antheridia, Archegonia, Stomata in Thallue, 



Section of TUallus, each 25 



Fertile Spike of Selagiuella, 25c; Licmophora 45 



Set of 24 Buiauical Slidijs (Klemeutary Tissues) specially arranged for students 6. WO 



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



Very perfect and bcautilul giuups of about 150 Diatoms from either of the^foUowing localities: Corsica, Buri, 



Glengore (Jutland;, Oamara (N. Z.) each, 1-65 



Set of 12 Test Objects suitable for all powers 5.25 



Type Slide of 4tW diUereut species of Diatoms, the name photographed on the Slide, under each specie 20.00 



Group of about 100 Sponge Spicules from St. Peter Hungary 0.05 



Set of 9u Spec! mens, specially arranged for Medical Officers of Health 30.90 



Set of M Specimens, specially arranged for Medical Officers of Health 12. .50 



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



Scales and Hairs of Insects arranged to represent Sprigs of Flowere, Bouquets, Vases of Flowers, «fec., 



$1.50, 82.50, $5.25, andS10.5U 



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



Add cost of mailing and registration to above prices : 1 slide, 80.13 ; b slides, 80.45; 12 slides, 80.75 ; 24 slides 

 81.25 ; 72 slides, 83.50. Larger parcels can be sent by express parcels service at very low rates, but itsniailiug is 

 prefemble, 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 40.0U0 FIRST CLASS OBJECTS, probably the finest in 

 the world, representing every braucli of research, forwarded post freeou application. 

 NEW APPARATUS FOR MiCROriCOPES. 



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

 liuger, Adjustable Kye Lens, so that the Webs may be accurately focussed, constructed almost entirely 



of Aluminium quite new 18.75 



New Projection Eyepieces for Photo. Micrography Powers, 2, 4, 3, and 6, each 10.00 



New Parallel Keversible Compressor, Constmcted in Aluminium 20.05 



New Aplauatic Maguiflers, giving very large and flat field, e.xquisite definition and good working distance 



x6, xlO, x20 diameters, each 3.65 



MICROSCOPIES, OBJBCTIViieS, AND APPARATUS for every class 

 of research, of the finest quality only. 



TVl^J, II,I,USTRAT:SD CATAI^OGUB op MICROSCOPES, &c., 



SBNT POST FR:EE ON APPI^ICATION TO 



OPTICIANS TO n. M. GOVERNMENT, 



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



Established 1837. 



Award-d Two Gold :\r -l.ils. P.iris TTiiiv r<al Kxhii)i:i n, ISS'.l; two niploiiia.s of TTouor for .Microscopes 

 and Microscopic Olijects, .\iiiwi-rji rntf.ruatiMiial Hlxiiiljition Ixui : and 2t; Gold and other Medals at. th^- 

 principul IiitiTuati.pual KxhibMioux of the W.>rld. 



