TABLE OF CONTENTS. 
Part I. Public’s Interest in Manufactured Gas. 
Page. 
Magnitude i 
Growth 1 
Geographical distribution 1 
Effect of declining natural gas supply 1 
Effect of home economics teaching 4 
Gas small part of total meal cost 4 
Relative cost of “ home-cooked ” and “ ready-to-serve ” cereals 5 
Relative cost of various fuels 5 
Electricity can not replace gas 6 
How electric cooking and heating would waste coal 7 
Waste of gas coals in beehive coke ovens 8 
Governmental research on correct manufactured-gas use 8 
Gas industry is rapidly changing 9 
Volume of gas used not always increased by lower heating value 9 
Classification of manufactured-gas consumers 19 
How gas industry is related to smoke nuisance 10 
Part II. Correct Use of Manufactured Gas. 
Methods of utilization determine quality of service produced 11 
Absence of gas-appliance regulations | 11 
What must happen when gas is burned 11 
What may happen when gas is burned 12 
Combustion products of gas can not be destroyed 12 
Flueless heating stoves always dangerous 13 
Flueless heating stoves more dangerous than flueless cook stoves 13 
Blue-flame burners 13 
Luminous-flame burners 14 
Cooking requires little heat 15 
Steps necessary for correct cooking 15 
More gas is used for cooking in winter than in summer 16 
Rusting of ovens and burners 16 
Steps necessary for correct house heating 16 
Steps necessary for correct hot-water heating 17 
Lighting should be from incandescent mantle lamps only 17 
Part III. Economic Aspects of the Manufactured-Gas Industry. 
Why economic aspects are controlling 19 
What term “ cost ” must include 19 
Definition of profit 19 
Misleading manufactured-gas cost data 20 
Significance of fixed charges 20 
Characteristics of house heating 20 
What peak load means 22 
Analysis of house-heating problem 22 
Variation in gas demand for house heating 23 
Universal manufactured-gas house heating not feasible 23 
Limitations of long-distance transmission of gas 23 
Factors controlling by-product coke oven gas use 24 
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