SCIENCE- G OSSIP. 



SCIE NCE-GO SSIP 

 SPECIAL CONCESSION. 



Present and New Annual Subscribers desiring to complete their series of 



Tlxe First SEVEN Volumes 



of the New Series of Science-Gossip can have them delivered free, bound in cloth, with die-sunk gilt lettering, 

 and all extra pages for reference, according to the latest fashion of binding Scientific Magazines, 



For TTWEiNrTY-FIYE Shillings. 



The prices to ordinary purchasers are Vol. I., 5 s - 6d. ; Vols. II., III., IV., V., VI. and VII., 7s. 6d. each. 

 The Trade is supplied at these prices, with usual discount. 



The volumes commence with the June number ; but Annual Subscriptions (6s. 6d., post free) may begin 

 with any month, and should be sent direct to Science-Gossip Office, no Strand, London, W.C. 



W. LONGLEY, 



ENTOMOLOGICAL CABINET 



APPARATUS MAKER. 



NATURAL HISTORY AGENT AND BOOKSELLER. 



SOUTH BENFLEET, R.S.O., 



_tLi S S JtLi _<&._ 



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. 



NOW READY. 

 THE CHAPMAN JONES 



PLATE TESTER 



SANGER 

 SHEPHERD 



& CO., 

 Sole Makers. 



1 



10 



11 



20 



21 



RED 



raw 



am 



Cb c„o 



SREY 



Pi" 8 !. 



E.TE 



RtBl 

 REDS. 

 CREEH 

 BLUE 



nCS 



2 



9 



12 



10 



22 



3 



8 



13 



IS 



23 



4 



7 



14 



17 



24 



5 



6 



IS 



16 



25 



Sanger 



:'r<ltCo 



A simple 

 instrument for 



testing 



photographic 



plates and films. 



Illustrated 



booklet sent on 



receipt of 



id. stamp. 



tV See "Science-Gossip," June No., page 22. 



SANGER SHEPHERD & CO., 



Factorv and Offices: 5, 6 & 7 GRAY'S INN PASSAGE, 

 RED LION STREET, HOLBORN, LONDON, W.C. 



NOW READY. 



WF" Post Free to readers of" Science-Gossip." 

 Also Booklets (including prices) of Apparatus and Materials for 



ORTHOCHROMATIC PHOTOGRAPHY 

 and PHO TO-MICROG RAPHY. 



CADETT ABSOLUTUS and GILVUS LIGHT FILTERS and 

 MEASURED FILTERS to increase exposure 2, 4, 6 or 8 times, 

 stocked in various sizes. Also Spring Caps and Fittings for same. 



See Exhibit at our Stall in Fountain Court at 

 the ROYAL PHOTOGRAPHIC SOCIETY'S EXHI- 

 BITION, New Gallery, Regent Street, Septem- 

 ber 30 to November 2. 



SANGER SHEPHERD & CO. 



Factory and Offices : 



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



HOLBORN, LONDON, W.C. 



Note. — Gray's Inn Passage is the second turning on the right in 

 Red Lion Street, coming from Holborn. 



Telegrams: "AUKS," LONDON. 



ESTABLISHED 1780. 



Telephone: 1824 GERRARD. 



(HENRY STEVENS. D. PELL-SMITH.) 

 AUCTIONEER R£ZT> VALUER, 



38 KING STREET, GOVENT GARDEN, LONDON, W.C. 



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

 seopic 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. 



Valuations for 



Catalogues and all particulars of Sales, post free. 



Probate or Transfer, and Sales conducted 

 the Country. 



m any 



