13 



NOTES ON LEAD ORES : Their Distribution and Properties. 

 By JAS. FAIRIE, F.G.S. Crown 8vo. 1901. 64 pages. Price 2s. 6d. ; 

 Abroad, 3s. ; strictly net. 



Contents. 



Chapters I., Definitions Properties Occurrence. II., Galena Johnstonite Cerussite 

 CeVuse (White Lead) Minium Red Lead. III., Pyromorphite Mimetene Hediphane 

 Crocoise Wulfenite. Vanadinite IV., Bleiglatte Anglesite Caledonite Linarite Lanark- 

 ite Leadhillite Susannite Clausthalite Cotunnite. V., Mendipite Matlockite Crom- 

 fordite Nagyagite Altaite Melanochroite Vauguelinite Scheeletine. VI., Plattncrite 

 Tilkcrodite Raphanosmite Deckenite Descloezite Dufrenaysite Bleinierite Moffrasite 

 Geocronite Kilbrechenite Schulzite Boulangcrite Heteromorphite Meneghinite 

 Jamesonite Plagionite Zinkenite. VII., Kobellite Bournonite Selenkupferblei Nus- 

 sierite Percylite Wolchite Polysphracrite Miesite. Index. 



THE RISKS AND DANGERS OF VARIOUS OCCUPA- 

 TIONS AND THEIR PREVENTION. By LEONARD 

 A. PARRY, M.D., B.S. (Lond.). 196pp. DemySvo. 1900. Price 7s. 6d. ; 

 India and Colonies, 8s. ; Other Countries, 8s. 6d. ; strictly net. 

 Contents. 



Chapters I., Occupations which are Accompanied by the Generation and Scattering of 

 Abnormal Quantities of Dust. II., Trades in which there is Danger of Metallic Poisoning. 

 III., Certain Chemical Trades. IV., Some Miscellaneous Occupations. V., Trades in which 

 Various Poisonous Vapours are Inhaled. VI., General Hygienic Considerations. Index. 



PRACTICAL X RAY WORK. By FRANK T. ADDYMAN, 

 B.Sc. (Lond.), F.I.C., Member of the Roentgen Society of London; 

 Radiographer to St. George's Hospital ; Demonstrator of Physics and 

 Chemistry, and Teacher of Radiography in St. George's Hospital 

 Medical School. Demy 8vo. Twelve Plates from Photographs of X Ray 

 Work. Fifty-two Illustrations. 200 pp. 1901. Price 10s. 6d. ; India 

 and Colonies, 11s. ; Other Countries, 12s. ; strictly net. 

 Contents. 



Part I., Historical Chapters I., Introduction. II., Work leading up to the Discovery of 

 the X Rays. III., The Discovery. 



Part II., Apparatus and its Management Chapters I., Electrical Terms. II., Sources 

 of Electricity. III., Induction Coils. IV., Electrostatic Machines. V., Tubes. VI., Air 

 Pumps. VII., Tube Holders and Stereoscopic Apparatus. VIII., Fluorescent Screens. 



Part III., Practical X Ray Work Chapters I., Installations. II., Radioscopy. III., 

 Radiography. IV., X Rays in Dentistry. V., X Rays in Chemistry. VI., X Rays in War. 

 Index, 



List of Plates. 



Frontispiece Congenital Dislocation of Hip-Joint. I., Needle in Finger. II., Needle in 

 Foot. III., Revolver Bullet in Calf and Leg. IV., A Method of Localisation. V., Stellate 

 Fracture of Patella showing shadow of " Strapping ". VI., Sarcoma. VII., Six-weeks'-old 

 Injury to Elbow showing new Growth of Bone. VIII., Old Fracture of Tibia and Fibula 

 badly set. IX., Heart Shadow. X., Fractured Femur showing Grain of Splint. XL, Bar- 

 rell's Method of Localisation. 



India-Rubber and Gutta Percha. 



INDIA RUBBER AND GUTTA PERCHA. Translated 



from the French of T. SULIGMANN, G. LAMY, TORVILHON and H. 



FALCONNET. Royal 8vo. Eighty-six Illustrations. Three Plates. 



About 400 pages. 1902. [In the press. 



Contents. 



Part I. Chapters I., Botanical Origin. II., Climatology Soil Rational Culture and 

 Acclimation of the Different Species of India-Rubber Plants. III., Methods of Obtaining 

 the Latex Methods of Preparing Raw or Crude India-Rubber. IV., Classification of the 

 Commercial Species of Raw Rubber. V., Physical and Chemical Properties of the Latex 

 and of India-Rubber. VI. and VII., Mechanical Transformation of Natural Caoutchouc 

 into Washed or Normal Caoutchouc (Purification) and Normal Rubber into Masticated 

 Rubber Softening, Cutting, Washing, Drying Preliminary Observations. VIII., Vul- 

 canisation of Normal Rubber. IX., Chemical and Physical Properties of Vulcanised 

 Rubber General Considerations. X., Hardened Rubber or Ebonite. XL, Considerations 

 on Mineralisation and other Mixtures Coloration and Dyeing Analysis of Natural or 

 Normal Rubber and Vulcanised Rubber. XII., Rubber Substitutes Imitation Rubber. 



Part II. Gutta Percha. Chapters I., Botanical Origin. II., Climatology Soil 

 Rational Culture. III., Methods of Collection. IV., Classification of the Different 

 Species of Commercial Gutta Percha. V., Physical and Chemical Properties. VI., 

 Mechanical Transformation. VII., Methods of Analysing. VIII., Gutta Percha Sub- 

 stitutes. Index. 



