. Radio-activity : an elementary treatise from the standpoint of the disintegration theory . SPINTHARISCOPES Showing the Scintillations of Radium,21/- W. MARTIN DALE, ^-^° ^ Chemist,10, NEW CAVENDISH ST., W. Telegraphic Address: Martindale Chemist London. Telephone: 1797 Paddington. HELIU AND ARGON. Prepared under the direction of SIR Wm. RAMSAY, , , BY THOMAS TYRER & GO., bTD. STRATFORD, LONDON, E., And sold by ihem IN TUBES, 100 , 25s. 6 Dols. THOMAS TYRER & CO. undertake Technical Operations for Inventorsand Patentees by arrangement. SPINTHARISCOPES As
. Radio-activity : an elementary treatise from the standpoint of the disintegration theory . SPINTHARISCOPES Showing the Scintillations of Radium,21/- W. MARTIN DALE, ^-^° ^ Chemist,10, NEW CAVENDISH ST., W. Telegraphic Address: Martindale Chemist London. Telephone: 1797 Paddington. HELIU AND ARGON. Prepared under the direction of SIR Wm. RAMSAY, , , BY THOMAS TYRER & GO., bTD. STRATFORD, LONDON, E., And sold by ihem IN TUBES, 100 , 25s. 6 Dols. THOMAS TYRER & CO. undertake Technical Operations for Inventorsand Patentees by arrangement. SPINTHARISCOPES As devised by Sir Wm. THE SCINTILLATIONS OF RADIUM. In Leather .. £1 1 | Cheaper forms 14/-and 10/6STRUTT^S RADIUM MINERALS AND SALTS. Specimens, mounted in Crookes Vacuum Tubes, sliowing fluorescenceunder Cathode stream, 15/- each. EXPERIMENTAL WORK IN GLASS OR METAL, A. C. COSSORy^STpariTngdon^acI, LONDON, PUBLISHERS ANNOUNCEMENTS See Over. PARTICULARS OF =■ = THE ELECTRICIAN SERIES OF STANDARD BOOKS. The Electrician —Every Friday, price 6d., post free 6|d. The Electrician is the oldest electricalyo?<?«a!/published. First series, i860 ; secondseries, 1878. It has always borne the same title, been the same size, and been published the Volumes form a unique set of uniform appearance. In the volumes of TheElectrician will be found the most valuable collection of original Papers and articles bynearly every leading writer on every branch of electrical engineering, science and industry,besides all Papers read before the principal Electrical Institutions throughout the worldby men eminent in the Electrical Profession, and authenticated reports of the discussionsthereupon. Original articles appearing in The Electrician are written by gentlemen havingno interest whatever in particular electrical systems, and with but one object—the advancement ofelectrical knowledge
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectradioac, bookyear1904
