'ADVEETiSEMENTS. 



SMITH, BICE, All i: 

 lllauiifactmm d ©ptkal imb $latljcnuitlcal |ii$t;nnntnts. 



COMPOlIiND ACHROMATIC MICROSCOPES. 



OF THREE CLASSES. 



FIRST CI.ASS. 



In ■wliieh the Magnifying Power, the Stand, and the Illumination, 

 are carried to the greatest possible perfection. 



Price, fifom £30 to £84. 



"The arrangement of the Illuminating Apparatus in Smith & 

 Beck's Microscope seems to the author to present some decided 

 advantages over that adopted by either of the other makers, and in 

 point of general excellence of worltmanship, this instrument cannot 

 be surpassed." — Carpenter, on Microscope, First Edition, page 103. 



S£CO£?B CLASS. 



In which the same Mngnilying Power as the former is combined, 

 with a less expensive Stand and Apparatus for Illumination. 



Price, from £15 to £40. 



Tliese Imtrumenis are improvements icpoii that mentioned hy Dr. 

 Carpenter on Microscope, First lEdition, page 87. 



" Of the iJatterns yet devised for a Microscope of simple con- 

 struction, which shall yet be callable of answering every essential 

 purpose, whether of display or of investigation, that of Smith & 

 £204* appears to the author to be (to say the least) among the 

 best, and he recommends it with the more confidence, since he has 

 for many years employed one of these Microscopes as his own work- 

 ing instrument." 



THIRD CLASS. 



EDUCATIOI^AL. 



The capabilities of this Instrument are limited, but they are equal 

 to the requirements of most observers ; and the cost is considerably 

 less than in the two other classcp. 



Price, £10 or £15. 



An Illustrated Descriptive Pamphlet of the Educational Micro- 

 scope will be forwarded on receipt of six postage stamps. It 

 includes testimonials from the following eminent Microscopists : — 



Wm.B. Carpenter, M.D., F.R.S. John Lindley, Ph.D., F.E.S., 

 John Goodsir, P.R.S. F. L.S. 



John Edward Grav. Geori^e Rainey, Esq. 



William GuU, M.D. B. AV. Eichardsou, F.E.C.S.I. 



George Jackson, JSI.R.C.S.E. AA'iUiam Smith, F.L.S. 

 Edwin Lankester, M.D., F.K.S. 



MICROSCOPIC OBJECTS. 



A large Assortment of Objects of Scientific and Ge- 

 neral Interest kept constantly in stock. 



Price, fzom Is. 6d. 



A careful selection of Six Dozen Objects in a neat 

 Mahogany Case. 



Price £4. 



This series comprises Illustrations of tlie following subjects :— 

 The Structure of Bone, Horn, Hoof, Tendon, Hair, Feathers, 

 Scales, Skin, etc. 



The various parts of Insects, viz. : — Head, Eye, Tongue, Ely. 

 tron, Wing, Foot, Sting, Trachoaa, Spiracles, etc. 



Of Vegetables : — Spores, Starch, Sections of Wood, Diatomacetc, 

 recent and fossil. 



Also Specimens of Sponge and Gorgonia Spicules, Algte, Zoo- 

 phytes, etc., etc. 



ACHROMATIC STE EOSCOPES. 



" Messrs. Smith & Bkck have not only carried out, they have- 

 gone beyond our suggestions. The result is a perfection beyond 

 which it is hardly possible to carry the Stereoscope." — Athencevm 

 August 28, 1858, page 269. 



Achromatic Stereoscope, in Walnut Wood . . jg3 10 



Ditto, ditto, in Mahogany . . .33 



Handsome Pedestal Stands for the above, forming also 



Cases for Views, from . £2 5s. to 4 15 



An Illustrated Description forwarded on application. 



Stereoscopic Photographs of the Moon, on Glass, from 

 Negatives taken by Warren Delarue, F.E.S., Sec. 

 E.A.S., etc. . . . . . £ 10 



Glass Transparencies, including Views in Svritzerland, 

 Egypt, the Pyrenees, Heidelberg, Spain, the Tyrol, 

 the Ehine, and various Continental Towns, each . 7 

 A very choice Assortment of Views on Paper. 



GORHAM'S KALEIDOSCOPIC COLOUR-TOP. 



(See "Microscopical Journal," iVb. XXVI.) 

 Price . . .£110 



Extra Set of Eotating Discs, per dozen . .050' 



i This Instrument shows tlie various beautiful effects of the Com- 

 I bination of Colours, etc. 



6, COLEKAK STREET, LONDON, E.C. 



Catalogues, etc., tent free on Application. Foreign Qi'ders to Ic 

 accompanied with a Bemittance. 



