Engraving and printing methods, advertisement illustration, technical- and trade-paper advertising, street-car advertising, outdoor advertising, house publications (1909)
Scranton : International Textbook Co. · leaf 353
doctors—giving each case individualattention and treatment. And yet wedo it at less expense to you. Why?Simply this. Every pound of our dryconcentrated chemicals containsounces of remedy. Ordinary boilercompounds are about 75% water and25% chemical reagents. You can buywater cheaper than it can be… … om oar boiler. You are to analyze it, certificate of analysis free of charffe. Number of boilers in use Capacity of each boiler Frequency of cleaning boilers Frequency of opening the blow-off during working hour River or other source of water supply Boilers are used about Fig. 9 education, who will…
