Chapters I., General Chemical and Physical Properties of the Drying Oils; Cause of the Drying Property; Absorption of Oxygen: Behaviour towards Metallic Oxides, etc.--II., The Properties of and Methods for obtaining the Drying Oils.--III., Production of the Drying Oils by Expression and Extraction: Refining and Bleaching; Oil Cakes and Meal: The Refining and Bleaching of the Drying Oils; The Bleaching of Linseed Oil.--IV., The Manufacture or Boiled Oil; The Preparation of Drying Oils for Use in the Grinding of Paints and Artists' Colours and in the Manufacture of Varnishes by Heating over a Fire or by Steam, by the Cold Process, by the Action of Air, and by Means of the Electric Current; The Driers used in Boiling Linseed Oil; The Manufacture of Boiled Oil and the Apparatus therefor; Livache's Process for Preparing a Good Drying Oil and its Practical Application.--V., The Preparation of Varnishes for Letterpress, Lithographic and Copperplate Printing, for Oilcloth and Waterproof Fabrics: The Manufacture of Thickened Linseed Oil, Burnt Oil, Stand Oil by Fire Heat, Superheated Steam, and by a Current of Air.--VI., Behaviour of the Drying Oils and Boiled Oils towards Atmospheric Influences, Water, Acids and Alkalies.--VII., Boiled Oil Substitutes.--VIII., The Manufacture of Solid and Liquid Driers from Linseed Oil and Rosin; Linolic Acid Compounds of the Driers.--IX., The Adulteration and Examination of the Drying Oils and Boiled Oil. * * * * * REISSUE OF =CHEMICAL ESSAYS OF C.W. SCHEELE.= First Published in English in 1786. Translated from the Academy of Sciences at Stockholm, with Additions. 300 pp. Demy 8vo. 1901. Price 5s.; India and Colonies, 5s. 6d.; Other Countries, 6s.; strictly net. =Contents.= Memoir; C.W. Scheele and his work (written for this edition).--Chapters I., On Fluor Mineral and its Acid.--II., On Fluor Mineral.--III., Chemical Investigation of Fluor Acid, with a View to the Earth which it Yields, by Mr. Wiegler.--IV., Additional Information Concerning Fluor Minerals.--V., On Manganese, Magnesium, or Magnesia Vitrariorum.--VI., On Arsenic and its Acid.--VII., Remarks upon Salts of Benzoin--VIII., On Silex, Clay and Alum.--IX., Analysis of the Calculus Vesical.--X., Method of Preparing Mercurius. Dulcis Via Humida.--XI., Cheaper and more Convenient Method of Preparing Pulvis Algarothi.--XII., Experiments upon Molybdaena.--XIII., Experiments on Plumbago.--XIV., Method of Preparing a New Green Colour.--XV., Of the Decomposition of Neutral Salts by Unslaked Lime and Iron.--XVI., On the. Quantity of Pure Air which is Daily Present in our Atmosphere.--XVII., On Milk and its Acid.--XVIII., On the Acid of Saccharum Lactis. --XIX., On the Constituent Parts of Lapis Ponderosus or Tungsten.--XX., Experiments and Observations on Ether. * * * * *