SCIENCE- G OSSIP. 



W. LONGLEY, 



ENTOMOLOGICAL CABINET 



AND 



APPARATUS MAKER. 



NATURAL HISTORY AGENT AND BOOKSELLER. 



SOUTH BENFLEET, R.S.O., 



Nets, Breeding Cages, and Apparatus of every descrip- 

 tion ; Cabinets for Insects, Birds' Eggs, Minerals, Shells, 

 Coins, etc. etc. ; Pocket Boxes, Store Boxes, and Book 

 Boxes. Sheets of Cork any size to order. 



A FILMLESS CINEMATOGRAPH 



For taking and projecting life-size animated photographs with 

 greatest perfection to the extent of over 500 pictures. 



Specially constructed for the Amateur or Professional. 



Price £6 10s. 



SIMPLE and RELIABLE' 

 MECHANISM. 



Negatives and Positive 



Plates. 2/6 each. 



Subject Plates, 3 6. 



6d. allowed for each Plate 

 returned unbroken. 



With the KAMMATOGRAPH an ordinary dry glass plate is used 

 instead of cinematograph film. The method of developing KAM- 

 MATOGRAPH plates is exactly the same as with dry plates, thus 

 bringing cinematography within the reach of all. 



SPECIALITIES— Can be seen at the Manufacturers. 



High-class Lantern and Jet, in travelling box . . . . . . £5 



Do., do., with patent electric arc lamp .. .. .. .. £6 



PATENT RHEOSTAT, which takes from 12 to 50 amperes at 

 no volts without overheating. Price on Application. 



Also made for 200 and 250 voltage. 

 Write for Catalogue to the Manufacturers : — 



L. KAMM &. CO., Scientific Engineers, 



lVorks-2.lt POWELL ST., GOSWELL RD., LONDON, E.C. 



ALFRED H. BASTltM, 



ENTOMOLOGIST, 



Ivy House, 28 New Road, Reading. 



All kinds of apparatus for the use of Entomologists kept in 

 stock. A large stock of Exotic Insects of all kinds. A special 

 40-page Descriptive List may be had free on application by intend- 

 ing purchasers. Special cases illustrating "Warning Colours," 

 " Mimicry," " Protective Resemblance," &c, can be supplied at 

 very low rates. Correspondence invited. Second-hand cabinets 

 bought and sold. 



BUTTERFLIES. MOTHS. 



Best value given for Collections from all 

 parts of the world. 



Travellers' own Collections named, ar- 

 ranged, and mounted. 



Many fine species for sale. 



PERCY I. LATHY, 



Sydney Road, Enfield, England. 



(SANGER SHEPHERD PROCESS.) 



A simple, inexpensive, and reliable process, based upon sound 

 scientific principles, for obtaining photographs of any object in 

 its natural colours faithfully reproducing every shade and tint, in 

 a manner absolutely satisfying to the eye. NATURAL COLOUR 

 LANTERN SLIDES, STEREOSCOPIC VIEWS and all 

 APPARATUS and Material for working the process NOW 

 READY. The Lantern Slides are of the standard size, 

 3I inches square, are perfectly transparent, and can be 

 shown in any ordinary lantern. A number of examples are 



always on view at our premises. 

 EXPERIMENTAL OUTFITS from £2 10s. 



STANDARD OUTFIT, £8 14s. 

 JVeiu Descriptive Booklets and Catalogues now ready. 



Natural Colour Photographs made to order 

 from Natural History Specimens, Microscopic 

 Objects, Works of Art, &c, either as lantern 

 Slides or larger transparencies. 



MEASURED LIGHT FILTERS FOR THE THREE- 

 COLOUR PROCESS (MEDAL Royal Photographic Society, 

 1899), Square or Circular, 1 in. to 6 in. diameter. 

 Sole Makers of THE CADETT ABSOLUTUS AND 

 GILVUS LIGHT FILTERS for the Spectrum Plate. Giving 

 Photographs which represent the luminosity of all colours exactly 

 as seen by the eye. AH sizes, square or circular. Caps and fittings 

 stocked in several patterns. See Circulars. 



Special Agents for the 



CADETT SPECTRUM PLATE. 



SANGER SHEPHERD & CO., 



Factory and Offices — 



5, 6 & 7 GRAY'S INN PASSAGE, RED LION STREET, 



H0LB0RN, LONDON, W.C. 



Telegrams : " AUKS,"> LONDON. 



ESTABLISHED 1780. 



38 KING 



(HENRY STEVENS. D. PELL-SMITH.) 

 AUCTIONEER AJSTID VALUER, 



STREET, COVENT GARDEN, LONDON, 



Telephone: 1824 GERRARD. 



W.C 



Every Friday at 12.30 Sales are held at the Rooms of Microscopes and all Accessories by best makers. Micro- 

 scopic Slides, Telescopes, Theodolites, Levels, Electrical and Scientific Apparatus, Cameras and all 



kinds of Photographic Apparatus. Lanterns by leading makers. Lantern Slides in great variety. 

 NATURAL HISTORY SALES once and twice a month. 

 CURIOSITIES, WAR RELICS, POSTAGE STAMPS, once a month. 



Catalogues and all particulars of Sales, post free. 



Valuations for Probate of Transfer, and Sales conducted in any part of 



the Country. 



