A HANDBOOK FOR INSURANCE SURVEYORS, WORKS MANAGERS, AND ALL INTERESTED IN FIRE RISKS AND THEIR DIMINUTION BY HERBERT INGLE, F.I.C., F.C.S. AND HARRY INGLE, PH.D., B.SC. TECHNOLOGICAL CHEMIST. Contents of Chapters. I. Definition of Fire, Old Theories as to its Nature, Modern Views of Combustion--The Physical and Chemical Properties of the Atmosphere, the Chief Properties of its Constituents--Some Conditions Affecting the Combustion of Substances in Air, the Principle of the Miner's Safety Lamp. II. Explanation of Chemical Terms, Outline of the Atomic Theory. Brief Explanations of the Use of Chemical FormulÊ and Equations. III. Methods of Preparations of Oxygen, Brin's Oxygen Manufacture--Heat Measurements, the Calorimeter, Calorific Power of Substances Burning in Air. IV. Coal Gas: Its Preparation, Purification and Composition--Properties of Its Chief Constituents--Reciprocity of Combustion--Gaseous Diffusion--Explosion of Gases--Dust Explosions. V. Fuel: Chemical Composition of Wood, Charcoal, Peat, Lignite, Coal, Coke, Petroleum, Coal Gas--Use of "Atmospheric Burners"--Producer Gas--Water Gas--Dawson Gas. * * * * * CROSS SECTION PAPER. =Scale EIGHT to ONE Inch.= THE HANDY SKETCHING PAD. Printed on one side, in blue ink, all the lines being of equal thickness with useful tables. Size 8 ◊ 10 inches. Price, 25c. each. Per dozen pads, $2.50. THE HANDY SKETCHING BOOK. Made from this paper but printed on both sides. Size of book 5 ◊ 8 inches, stiff board covers. Price, 25c. each; per dozen books, $2.50. =Scale EIGHT to ONE Inch.= A large sheet with heavy inch lines and half inch lines, printed in blue ink. Size of sheet, 17 ◊ 22 inches. Per quire (24 sheets), =Scale TEN to ONE Inch.= Size 17 ◊ 22 inches, printed in blue ink, with heavy inch lines and half inch lines. Per quire (24 sheets), The Electrician's Sketching Book. Made from this paper. Scale 10 to 1 inch. Size of book 5 ◊ 8 inches, with stiff card board covers. Price, 25c. each; per dozen, $2.50. The Electrician's Plotting Pad. Same paper, only printed on one side, size of pad, 8 ◊ 10 inches, 25c; per dozen, $2 50. Any Books and Pads Assorted, per dozen, $2 50. ANY QUANTITY MAILED TO ANY PART OF THE WORLD POST-PAID ON RECEIPT OF PRICE. This paper is _Printed from plates_. Try it and you will find it GOOD, ACCURATE AND CHEAP. SPON & CHAMBERLAIN, NEW YORK, U. S. A.