THE MICROSCOPICAI, ADVERTISER. 



MIOKOSCOPIC OBJECTS, 



W. VTATSON & SONS, 



313 High Holborn, London, W. C. 



NOTE.— There is no duty •whatever on Microscopic Objects entering the United States, provided they ara 

 for Private and not Trade purposes, as pcrdecisiou of the Secretary of tlie Treasury, reported In the Synop- 

 tical Series of Tn asury decisions— 3,958. American Microacopists can then, by ordering direct from ua. 

 avail themselves of ourcomprehensive stock at London x^rices 



Bacillus of Leprosy in Si-ctioii of Skin $ .75 



Bacillus of Tetanus, "'>c ; Bacillusof Di;)htheria in Membraue (Loffler) 75 



Bacillus of Surue Fever, $1 ; ISiicilliis mallei (Glanders) 1.25 



Ringworm of Scalp — Tricophytou tonsurans — showing its etfeot on the hair 45 



Heail of Cysticercus from Hare. Showing liooklets 45 



Fluke from Liver of Sheep, 4oe; Segment of Tape-Worm 45 



Heail of TaMiia meilio-canellata, 75c; Anchilostoma duodenale, a rare entozoon 45 



Felaria Sannuinis honiinis — nocturua 50 



Very line Horizontal Section of entire Foot of Human Fcetus 90 



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



Marine FloiLs (Asterope Mariaj) exhibiting beautiful crystals of carbonate of limo in body 50 



Phantom Shrimp, caprella, 4tic; Voung Starlet, Astorina 40 



Rotifers, mounted by a new process. Notops, 'JOc; Asplanchna 65 



Hyilrozoa — I'annaria Carolina. Very striking 40 



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



(Melloloutha); Spiiler (Kijeira), each , 50 



Palate of Paludina vivipara. Very beautiful 45 



New Longitudinal Sections of Teeth of D 4phiu, Oat, Sawfish, Lion Shark, Pig, (Jrocodile, Pikelish, Sheep, 



Hare, etc., each 45 



Section of the whole Jaw of Gator Mole, with all the teeth in situ, eacli 1 50 



Winter Bud of Plane Tree, double stained, very eBective 50 



Slides of Marchautia polymorpha, Elaters and Spores, (xemmsB, Antheridia, Archegonia, Stomata in Thallus, 



Section of Thall us, each 25 



Fertile Spike of Selagmella, 2oc; Licuiophora 45 



Set of 24 Botanical Slides (Klemeutury Tissues) specially arranged for students 6.00 



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



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



Gleugore (Jutland), Uamara (N. Z.) each, 1-65 



Set of 12 Test Objects suitable for all powers 5.25 



Type Slide of 400 dillereut species of Diatoms, the name photographed on tlie Slide, under each specie 20.00 



Group of about 100 Sponge Spicules from St. Peter Hungary 0.G5 



Set of 90 Specimens, specially arranged for Medical Officers of Healtii 3G.90 



Set of 30 Specimens, specially arranged for Medical Ollioers of Health 12.50 



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



Scales and Hairs of Insects arranged to represent Sprigs of Flowers, iiou(xuets. Vases of Flowers, <fec., 



$1.50, S2.50, 85.25, audlglO.oO 



Very beautiful groups of Eggs of Butterflies, Mollis, <X,c. Striking for Exhibition purposes, $1.40 and S2.65 



Add cost of mailing and registration to above prices : 1 slide, $0. 13 ; G slides, $0.45; 12 slides, $0.75 ; 24 slides 

 $1.25 ; 72 slides, iil.oO. Larger parcels can be sent by express parcels service at very low rates, but itsmailing is 

 preferable, being much quicker, safer, and s;iviug broker's charges. 



Any of the above olijects sent by return ou 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 APPAKATUri FOli MlCKOriCOPES. 



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

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



of Aluminium quite new 18.75 



New Projection Eyepieces for Photo. Micrograpliy Powers, 2, 4, 3, and G, each 10.00 



New Parallel Reversible Compres.sor. Constructed in Aluminium 20.65 



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



x6, xlO, x20 diameters, each 3.65 



MICR0SC0P:RS, 0BJBCTIV:RS, and apparatus for every class 

 of research, of the finest quality only. 



PUI<I/ II.I<USTRAT]eD CATAI^OGUE OF MICROSCOPES, &c., 



SENT POST FREE ON APPI^ICATION TO 



•w^. "VT-j^Tsoisr & soisrs, 



OPTICIANS TO H. M. GOVERNMENT, 



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



Established 1837. 



Awarded Two Gold Medals. Paris Univer.sal Exhibition, 1889 ; two Diplomas of Honor for MicroscoDes 

 and Microscopic Ob.iectR, Antwerp Intematiorual Exhibition, 1891 ; and 2fi GoLit and other Medals at ttbe 

 principal International Exhibitions of the World. 



