SCIENCE-GOSSIP. 



in 



JUST OUT. 



Demy 4to, with 40 Half-tone Reproductions from Original Negatives, and 63 Illustrations in the Text, Cloth Gilt, Price "|2s. 



PHOTO-MICROGRAPHY 



By EDMUND J. SPITTA, L.R.C.P. (Lorn), M.R.C.S. (Eng.), F.R.A.S. 



Formerly Demonstrator of Anatomy, St. George's Hospital Medical School, 

 Joint Author of " An Atlas of Bacteriology." 



THE book has been written to help those commencing the subject, and to assist others who may be anxious to achieve the 

 highest results in what has now become an absolutely scientific and commercial necessity. 



Like almost any Art or Science which has reached a high degree of perfection, Photomicrography cannot be learnt in a 

 moment, for it requires both knowledge and patience, practice and skill, to carry it out successfully. 



London : THE SCIENTIFIC PRESS, Ltd., 28 & 29, Southampton Street, Strand, W.C. 



LOUIS'S M ICROSCOPICAL OBJECTS. 



24 Series, Unmounted, of Cleaned Diatoms, 12 tubes in each 

 Series, 4s. per Series. 5 Series of 24 Foraminiferous Sands at 2s. 

 each. 5 Series of 24 Microfungi at 2s. each. 7 Series of 24 

 Sections of Woods, 2s. each. 



Cleaned Unmounted Diatoms. 

 Series i. — 4s. per 12 tubes. 

 Borries (Oamaru). 

 Carpentaria (Cal., U.S.A.). 

 Ananino (Russia). 

 Coscinodiscus concinnus. 

 Grammatophora marina. 

 Isthmia nervosa. 

 Rouillat (France). 

 Sheem (Aberdeen). 

 Emmingen (Hanover). 

 Tallya (Hungary). 

 Gomphonella olivacea. 



Foraminiferous Sands Unmounted 

 Series xxxvii. — zs. per 24 packets. 

 Ceylon. 



West Coast of Africa. 

 Straits of Malacca. 

 Sakarava. 

 Mauritius. 

 Malaga. 

 Port Said. 

 Moravia (Miocene). 

 Fayel (France). 

 Upper Lias (Lincoln). 

 Girgente (Italy), 

 etc., etc. 



W. WEST, 15, HORTON LANE, BRADFORD. 



Send stamp for list. 



THE "HARTFORD" 



TYPEWRITER 



As adopted by the LONDON SCHOOL BOARD 



(0 



« 



H 



H 



A HIGH-GRADE COMMERCIAL MACHINE AT LITTLE 

 MORE THAN HALF THE USUAL PRICE. 



In use in the best-known firms in England. 



Free trial given on application to all Agents, or apply 

 for fully Illustrated Prospectus to 



THE " HARTFORD " TYPEWRITER SYNDICATE, 



30, KING STREET, CHEAP3IDE, LONDON E.C. 



THE VICTORIAN ERA SERIES. 



In Monthly Volumes, fcap 8vo, 2s. 6d. each. 



NEW VOLUME JUST PUBLISHED. 



REGENT ADVANCES 

 IN ASTRONOMY. 



By A. H. FISON, D.Sc. 



LONDON: 



BLACKIE & SON (Limited), Old Bailey. 



MAGI C LANTE RNS. 



NO SMELL. NO SMOKE. NO BROKEN GLASSES. 



GRAND 

 RESULTS 



THE MARVELLOUS 



PAMPHENGOS. 



MARVELLOUS PAMPHENGOS.— The finest Oil-lighted Lan- 

 tern extant; equals Limelight; stood the test against all 

 imitations. Over 3,000 sold— supplied to the Government and 

 School Boards. Particulars free. 



GILCHRIST SCIEHCB LANTERN.— Oxyhydrogen Micro- 

 scopes, Polariacopes, &c. The Cinematograph for Living 

 Pictures. 



Mr. Hughes's Grandly Illustrated Catalogue, over 160 Original 

 Wood Engravings. Price, 6d. ; Postage, 3d. Cheapest, Best and 

 Most Reliable Outfits in the world. 



i'HE ART OF PROJECTION, AND COMPLETE MAGICS 

 LANTERN MANUAL, by an Expert. Over 100 fine Illustrations, 

 with priceless wrinkles. How to use Oil, Limelight, Dissolving, 

 Electric, Microscopic and Polarising Lanterns, Slide Making, 

 Painting, &c. Price, bound in cloth, 3s. 6d. ; Postage, sd. 



W. C. HUGHES, Patentee and Specialist, 



Brewster House, Mortimer Road, Klngsland, London, A?. 



Second-Hand Lanterns and Slides- Bargains. 



ILLUSTRATED LISTS FREE. 



60 Beautifully Coloured Slides on loan for 3s. 



