Transactions . age 389. 142 DISCUSSION —ADEQUATE VENTILATION AND NOXIOUS GASES. the air thus vitiated to its normal state would require (5*868 cubic inches-i- 0*0004 or) 14,670 cubic inches ; and (195*6 + 14,670 or) 14,865*6cubic inches of fresh air or (, say,) 9 cubic feet per minute. The last paragraph on page 391 should read :— It has thus beenshown that a man at work requires 42 cubic feet, a pit-horse at work200 cubic feet, and a lamp 9 cubic feet per minute for ordinary purposes. The general conclusions on page 403 should read : The volume ofair required for workmen, etc., is as follo
Transactions . age 389. 142 DISCUSSION —ADEQUATE VENTILATION AND NOXIOUS GASES. the air thus vitiated to its normal state would require (5*868 cubic inches-i- 0*0004 or) 14,670 cubic inches ; and (195*6 + 14,670 or) 14,865*6cubic inches of fresh air or (, say,) 9 cubic feet per minute. The last paragraph on page 391 should read :— It has thus beenshown that a man at work requires 42 cubic feet, a pit-horse at work200 cubic feet, and a lamp 9 cubic feet per minute for ordinary purposes. The general conclusions on page 403 should read : The volume ofair required for workmen, etc., is as follows :— Each person requires ordinarily when at work Do. when in a working-place giving off ^ per cent, of gas 1 Each horse requiresEach safety-lamp requiresEach shot fired requires ... Cubic Feet of Airper Minute. 105. 126. 142-8. 147. 168. 2009. 500 ? - Vox X2V Plate IW. To itlustnit& Paper oTL£xpfosions in,Air*-Conipressrs asb&liecejx Tt / $s To Shaft - Fig. I—Plan. Scale, 4 Feet to I Inch. .. ? To Shaft Sectional Elevation. Midlandln-titute ofMinin^CivilScMeckcuucclEn^ine^rs,Transactions 18 3 7 3 Vox XV Plate IK TRANSACTIONS. 143 MIDLAND INSTITUTE OF MINING, CIVIL ANDMECHANICAL ENGINEERS. GENERAL MP]ETING,Held at the Queens Hotel, Leeds, April 16th, 1898. Mr. G. BLAKE WALKER, President, in the Chair. The minutes of the Joint Meeting with the Chesterfield and MidlandCounties Institution of Engineers were read and confirmed. The following- gentlemen were elected, having been previouslynominated:— Members—Mr. Henry Cawood Embleton, Mining Engineer, Central Bank Chambers, David Morgan Rees, Mining Engineer, 9, Romilly Crescent, Robert Mountain Swift, Land and Mineral Surveyor, Sim Hill, Cranemoor, Sheffield. Associates—Mr. Charles Henry Elliott, Colliery Under-manager, Wombwell Main Colliery, Arthur Thomas Thomson, Assistant Colliery Manager, Manvers Main Colliery, Wath-upon-Dearne. Mr. R
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Keywords: ., book, bookcentury1800, booksubjectmineralindustries, bookyear1887
