12 



Industrial Hygiene. 



THE RISKS AND DANGERS TO HEALTH OF VARI- 

 OUS OCCUPATIONS AND THEIR PREVENTION. 



By Leonard A. Parry, M.D., B.Sc. (Lond.). 196 pp. Demy 8vo. 

 Price 7s. 6d. net. (Post free, 7s. lOd. home ; 8s. abroad.) 



Contents. 



Occupations which are Accompanied by the Generation and Scatterinjj of Abnormal 

 Quantities of Dust — Trades in which there is Danger of Metallic Poisoning — Certain Chemi- 

 cal Trades — Some Miscellaneous Occupations — Trades in which Various Poisonous Vapours 

 are Inhaled — General Hygienic Considerations — Index. 



Industrial Uses of Air, Steam and 



Water. 



DRYING BY MEANS OF AIR AND STEAM. Explana- 



tions, Formulae, and Tables for Use in Practice. Translated from the 

 German of E. Hausbrand. Two folding Diagrams and Thirteen Tables. 

 Crown 8vo. 72 pp. Price 5s. net. (Post free, 5s. 3d. home; 5s. 6d. 

 abroad.) Contents. 



British and Metric Systems Compared — Centigrade and Fahr. Thermometers — Estimation 

 of the Maximum Weight of Saturated Aqueous Vapour which can be contained in 1 kilo, 

 of Air at Different Pressure and Temperatures — Calculation of the Necessary Weight and 

 Volume of Air, and of the Least Expenditure of Heat, per Drying Apparatus with Heated 

 Air, at the Atmospheric Pressure: A, With the Assumption that the Air is Completely Satur- 

 ated with Vapour both before Entry and after Exit from the Apparatus — B, When the 

 Atmospheric Air is Completely Saturated before entry, but at its exit is only %,hof\ Saturated 

 — C, When the Atmospheric Air is not Saturated with Moisture before Entering the Drying 

 Apparatus — Drying Apparatus, in which, in the Drying Chamber, a Pressure is Artificially 

 Created, Higher or Lower than that of the Atmosphere — Drying by Means of Superheated 

 Steam, without Air — Heating Surface, Velocity of the Air Current, Dimensions of the Drying 

 Room, Surface of the Drying Material, Losses of Heat — Index. 



{See also " Evaporathif^, C' ndcnsing and Cooling Apparatus,'" p. 26.) 



PURE AIR, OZONE AND WATER. A Practical Treatise 

 of their Utilisation and Value in Oil, Grease, Soap, Paint, Glue and 

 other Industries. By W. B. Cowell. Twelve Illustrations. Crown 

 8vo, 85 pp. Price 5s. net. (Post free, 5s. 3d. home ; 5s. 6d. abroad.) 



Contents. 



Atmospheric Air : Lifting of Liquids ; Suction Process ; Preparing Blown Oils: Preparing 

 Siccative Drying Oils — Compressed Air: Whitewash — Liquid Air: Retrocession — Purification 

 of W^ater; Water Hardness — Fleshings and Bones — Ozonised Air in the Bleaching and De- 

 odorising of Fats, Glues, etc. : Bleaching Textile Fibres— Appendix : Air and Gases: Pressure 

 of Air at Various Temperatures : Fuel: Table of Combustibles: Saving of Fuel by Heating 

 Feed Water: Table of Solubilities of Scale MaUing .Minerals: British Thermal Units Tables ; 

 Volume of the Flow of Steam into the Atmosphere : Temperature of Steam — Index. 



THE INDUSTRIAL USES OF WATER. COMPOSI- 

 TION — EFFECTS— TROUBLES — REMEDIES— RE- 

 SIDUARY WATERS— PURIFICATION— ANALYSIS. 



By H. DE LA Coux. Royal 8vo. Translated from the French and 

 Revised by Arthur iMorris. 364 pp. 135 Illustrations. Price 10s. 6d. 

 net. (Post free, lis. home; lis. 6d. abroad.) 



Contents. 



Chemical Action of Water in Nature and in Industrial Use — Composition of Waters — 

 Solubility of Certain Salts in Water Considered from the Industrial Point of View — Effects on 

 the Boiling of Water — Effects of Water in the Industries^DifficuIties with Water — Feed 

 Water for Boilers — Water in Dyeworks, Print Works, and Bleach Works — Water in the 

 Textile Industries and in Conditioning — Water in Soap Works — Water in Laundries and 

 Washhouses — Water in Tanning — \\'ater in Preparing Tannin and Dyewood Extracts — Water 

 in Papermaking — Water in Photography — Water in Sugar Refining — Water in Making Ices 

 and Beverages — Water in Cider Making— Water in Brewing — W aterin Distilling — Preliminary 

 Treatment and Apparatus— Substanceh Used for Preliminary Chemical Purification — Com- 

 mercial Specialities and their Employment — Precipitation of Alatters in Suspension in Water 

 — Apparatus for the Preliminary Chemical Purification of Water — Industrial Filters — Indus- 

 trial Sterilisation of Water — Residuary Waters and their Purification — Soil Filtration — 

 Purification by Chemical Processes — Analyses — Index. 



{See Books on Smoke Prevention, Engineering and Metallurgy, p. 26, etc,) 



