SCIENCE- GOSSIP 



BAUSCH & LOMB'S 



LABORATORY, BACTERIOLOGICAL 



AND 



ADVANCED MICROSCOPE. 



MODEL B.B. 

 THE POPULAR FAVOURITE. 



With Screw Substage, Iris Dia- 

 phragm, Coarse and Fine Adjust- 

 ment, Brass Stand, in Polished 

 Wood Cabinet, with Lock and 

 Key, £5 0. 



HUYGHENIAN EYEPIECES. 



2-in. ij-in. i-in. j-in. Jin. 



5\~ 51- 51- SI- 51- 

 B. & L.'s SPECIALLY COR- 

 RECTED HIGH-CLASS OB- 

 JECTIVES for Laboratory Work. 

 Dry.. 2/3 in. N.A. 0*24, 15/- ea. 



,, .. 1/6 in. „ 0-82, 30/- ,, 

 Oil Immersion — 



i/i2in. ,, 1-32, 100/- ,, 



Our 1/6 in. N.A. o"66 specially 

 constructed for Blood Correcting. 



We have all Models on Stock 

 complete with Objectives, &c, 

 38/6 to £30 each. 



E, STALE Y & CO., 



35 ALDERMANBURY, LONDON, E.C. 



(BAUSCH & LOMB'S REPRESENTATIVES FOR GREAT 

 BRITAIN AND EXPORT.) 



-PAGE FULLY ILLUSTRATED DESCRIPTIVE 

 LIST THREEPENCE TO COVER POSTAGE. 



J^" As an instance of the High-class character 1 of our 

 Stands and Perfection of our Objectives, we may 

 say we have now sold over 30,000 of these Micro- 

 scopes; this fact in itself is sufficient guarantee of 

 their merit and quality. 



N.B. — See Notes on our Instruments in the Nczu Edition of 

 Ca?-penter on the Microscope. 



J AS. SWIFT & SON, 



Manufacturing Opticians. 



Solely appointed to the A.M. Dept. , 

 War Office, for the supply 

 of Microscopes. 



Patent form of Student's Micro- 

 scope, fitted with 2/3" and 1/6" 

 Pan-Aplanatic Objectives, Iris 

 Diaphragm and Oculars, in Case, 

 from £5 5Sm 



These Instruments we have sup- 

 plied in numbers to the following 

 Medical Schools, viz., St. Mary's, 

 St. Bartholomew's, Guy's, Middle- 

 sex, London, and St. Thomas's. 



f^~ Seven Gold Medals 

 awarded for excellence of 

 manufacture. 



Catalogue on Application. 



81 TOTTENHAM COURT ROAD, W. 



MICRO-SLIDE LENDING 

 DEPARTMENT. 



The above is being entirely rearranged by experts who are 



writing detailed descriptions of each Slide in their 



several departments. 



READY OCTOBER. 



MICRO-CATALOGUE 



(1900-1901) 



Considerably Enlarged and Re-written throughout. 

 Post Free to Readers of "Science-Gossip." 



C. BAKER, 244 HIGH HOLBORN, W.C. 



MICROSCOPICAL AND LANTERN SLIDES 



Illustrative of every department of 



ZOOLOGY, BOTANY, 



GEOLOGY, and 

 TEXTILE INDUSTRIES, 



From 6s. doz. 



HISTOLOGY OF THE COTTON PLANT. 



T.S. Lateral Root, 6d. I Anther before and after dehis- 



T. & L.S. Stem (4 sections), 1/6 cence, 6d. 



T.S. Petiole, 6d. I T.S. of Seed to show Oil 



T. & L.S. Flower-bud, 1/3. Canals, 1/- 



Ovary at various stages, 1/6. 



The following Types of Cotton Fibres, &c, 1/- per Slide. 

 SEA ISLANDS COTTON. 



Extra fine T.S. of Fibre. 



,, Entire. 



Georgia T.S. of Fibre. 



,, Entire. 



Florida T.S. of Fibre. 



,, Entire. 



Bahama Islands T.S. of Fibre. 

 Entire. 



Tahiti T.S. of Fibre. Ditto Entire. 

 EGYPTIAN COTTON. 



Brown T.S. of Fibre. 



,, Entire. 



White T.S. of Fibre. 



,, Entire. 



Gallini T.S. of Fibre. 

 ,, Entire. 



Ashmouni T.S. of Fibre. 

 Entire. 



Smyrna T.S. of Fibre. Ditto Entire. 

 BRAZILIAN COTTON. 



Pernam T.S. of Fibre. 



,, Entire. 



Rios T.S. of Fibre. 



,, Entire. 



Peruvian Red T.S. of Fibre. 

 AMERICAN COTTON. 



Peruvian Rough T.S. of Fibre. 



,, Entire. 



Peruvian Smooth T.S. of Fibre. 

 Entire. 



Good ordinary T.S. of Fibre. 



,, Entire. 



Orleans T.S. of Fibre. 



,, Entire. 



Memphis T.S. of Fibre. 



,, Entire. 



Uplands T.S. of Fibre. 



,, Entire. 



Texas T.S. of Fibre. 



,, Entire 



Macio T.S. of Fibre. 



,, Entire. 



Benders T.S. of Fibre. 



,, Entire. 



Nashville T.S. of Fibre. 

 Entire. 



Allanseed T.S. of tibre. Ditto Entire. 

 EAST INDIAN COTTON. 



Tinneville T.S. of Fibre. 



,, Entire. 



Hingunghat T.S. of Fibre. 



,, Entire. 



Broach T.S. of Fibre. 

 , , Entire. 



Dolierah T.S. of Fibre. 



,, Entire. 



Oomrawuttee T.S. of Fibre. 



,, Entire. 



China Cotton T.S. of Fibre. 



,, Entire. 



Cera f.S. of Fibre. 



,, Entire. 



Rangoon T.S. of Fibre. 



,, Entire. 



Bengal T.S. of Fibre. 



„ Entire. 



Assam T.S. of Fibre. 



,, Entire. 



Scinde T.S. of Fibre. 



,, Entire. 



African Cotton T.S. of Fibre. 

 „ Entire. 



For Chemical Action — " Mercerized Cotton" T.S. of Fibre. 



,, ,, " Mordanted " ,, ,, 



SILK. 



T.S. Silk Fibre (raw state). , T.S. Spun Yarn, "Artificial 



Entire ,, I Silk." 



T.S. so-called Silk Cotton, " Callatropa gigantea." 



WOOL. 



Five Samples from the same Fleece. 



Loins and Back T.S. of Fibre. 

 ,, Entire. 



Shoulders T.S. of Fibre 

 ,, Entire. 



Sides, T.S. of Fibre. 



,, Entire. 

 Neck, T.S. of Fibre. 

 Entire. 



Legs, T.S. of Fibre. Ditto Entire. 

 FIBRES USED for MANUFACTURE of COARSE FABRICS 



Flax, T.S. of Fibre. | Jute, T.S. of Fibre. 



,, Entire. ,, Entire. 



Hemp, T.S. of Fibre. 1 China Grass, T.S. of Fibre. 



,, Entire. ,, Entire. 



Now Ready. LANTERN SLIDES. Field to Factory. 



Price 6d. per slide. 

 A Series of 100 Lantern Slides to illustrate the Structure and 

 Histology of the Cotton Plant, its cultivation and growth, picking 

 and preparation of the fibre for, and shipment to, the markets of the 

 World, its manufacture, &c. Specially prepared for the Educa- 

 tional Committee of the West Riding of Yorkshire County 

 Council. A descriptive pamphlet of this Series now in the press. 



ABRAHAM FLATTERS, 



Gold Medallist in Natural Science, 



16 & 18 Church Road, LongsigM, Manchester. 



Preparer of Textile Fibres and Demonstrator in Microscopy to the 

 Manchester Municipal Technical School. 



IV Send for Lists, free per post. "TO 



