A detailed technical treatise on the methods and appliances for “spraying” paint, lacquer, enamel, varnish, etc., and painting by immersion. By the process of “flowing on” it is stated that a complete coat of enamel can be given to the body of a four-seated touring car in two minutes. =Jex-Blake=, A. J. =Tuberculosis:= a general account of the disease, its forms, treatment, and prevention. 1915. [616.995] 22158 =Kean=, F. J. =Petrol engine.= 1915. _Diagrams._ [621.434] 22217 Each part of the engine is dealt with in a separate chapter. The two-stroke engine receives a chapter to itself. Liquid fuels are very briefly covered in four pages. The appendix deals with engine troubles, their causes and cure. =Kingsbury=, J. E. =Telephone= and telephone exchanges: their invention and development. 1915. _Ill._ [621.385] 22207 An attempt has been made in this work so to relate the inventions and developments in the telephone field that the record may constitute in effect a short history of the telephone industry and an expression of its main principles. =Lange=, K. R. By-products of =coal-gas= manufacture; _trans._ from the German. 1915. _Ill._ [665.7] 22037 _Contents_: Introduction; Purification of coal gas; Coke; Gas-tar; Gas liquor; Treatment of the gas purifying agents; Treatment of cyanogen sludge; Treatment of crude liquors; Treatment of ammonium thiocyanate, etc. =McCormick=, W. H. _Electricity_. _Romance of Reality Series._ 1915. _Ill._ [621.3] 21858 =Martin=, Geoffrey. =Chlorine= and Chlorine products. _Manuals of Chemical Technology IV._ 1915. _Ill._ [661.3] 22159 Includes the manufacture of bleaching powder, hypochlorites, chlorates, etc., with sections on bromine, iodine, hydrofluoric acid; with a chapter on “Recent oxidizing agents” by G. W. Clough. =Martin=, Geoffrey, _and_ =Barbour=, William. Industrial =nitrogen compounds= and explosives. _Manuals of Chemical Technology III._ 1915. _Ill._ [662] 22160 A practical treatise on the manufacture, properties, and industrial uses of nitric acid, nitrates, ammonia, ammonium salts, cyanides, etc., including most recent modern explosives. The cost of such bulletins varies according to style, variety of types used, etc., and rarely can it be recovered from sales. Some bulletins are wholly or partly supported by advertisements, and when these are included it is better that they should be on separated pages at the beginning and end, and not, as is sometimes done, inserted in irritating manner amongst the library matter.