. Railway mechanical engineer . Chemicals in Effect January L 1919 Lime, 88 per cent Hl^l . Soda ash, 98 per cent ton Caustic soda, 76 per cent Na- 0 ■ J,j m Sodium phosphate n, iu Sodium silicate, 49 deg. Baume ;£ d. Sodium fluoride Jo k Barium hydrate. 54 per cent ccnn . Barium carbonate, 97 per cert -U 1° Barium chloride ^/oT/ ?k Boras |c ih Tannic acid (commercial) ^ ■ In all cases lowest quotations are g:vcn. in a regular treating plant. The labor in applying thecompound should also be compared with the labor of operat-ing a regular treating plant. It should also be remembered that
. Railway mechanical engineer . Chemicals in Effect January L 1919 Lime, 88 per cent Hl^l . Soda ash, 98 per cent ton Caustic soda, 76 per cent Na- 0 ■ J,j m Sodium phosphate n, iu Sodium silicate, 49 deg. Baume ;£ d. Sodium fluoride Jo k Barium hydrate. 54 per cent ccnn . Barium carbonate, 97 per cert -U 1° Barium chloride ^/oT/ ?k Boras |c ih Tannic acid (commercial) ^ ■ In all cases lowest quotations are g:vcn. in a regular treating plant. The labor in applying thecompound should also be compared with the labor of operat-ing a regular treating plant. It should also be remembered that when using a boilercompound, the only way in which the scale can be removedis by blowing down. Blowing dow^n wastes water and steamwhich has been brought to boiler temperature at the expenseof coal. No Bolshevism There.—Railwaymen in Southern Italysent a telegram to the prime minister offering to give thestate an additional hours work a day in order to increase thecountrys production.—Grpfl/ Westprn Railway Scientific Development of the Locomotive Factors Affecting the Cost of Maintenance andOperation Analyzed and Improvements Suggested By JOHN E. MUHLFELD MARKED progress has been made in the development ofthe steam locomotive as the result of superior engi-neering ability, and the results have in many respectsbeen exceedingly effective. This progress, however, has beenconfined largely to an increase in size, weight, evaporatingcapacity and hauling power, and while the general use ofsuperheaters and firebox baffle walls during the past tenyears has substantially assisted in improving sustained boilercapacity and increasing thermal efficiency as well as inkeeping the steam locomotive in advance of the electric loco-motive, the opportunit}- for further improvement in thermaland machine efficienc\- and to reduce smoke, cinders, sparksand noise is untold. The desiderata in a steam locomotive may be summed ujias: a reasonable first cost; maximum capacity for the
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
