. American engineer and railroad journal . h to counter-act contingent disadvantages. So far as we are aware, no oneattempts to say that under favorable conditions the compoundwill not save coal. But the facts go to show either that theseconditions are not present on British railways to any notableextent; or else that the expenses of maintenance and so forthare so great that compounding is not worth having. It is im-probable that any of our correspondents, has had recent runningshed experience, or has received drivers and examiners weeklyand daily reports. These things do not reach the public,


. American engineer and railroad journal . h to counter-act contingent disadvantages. So far as we are aware, no oneattempts to say that under favorable conditions the compoundwill not save coal. But the facts go to show either that theseconditions are not present on British railways to any notableextent; or else that the expenses of maintenance and so forthare so great that compounding is not worth having. It is im-probable that any of our correspondents, has had recent runningshed experience, or has received drivers and examiners weeklyand daily reports. These things do not reach the public, butthey represent very special and valuable information, enablinglocomotive superintendents to decide on the perpetuation or re-jection of any particular system of construction or method ofworking. We do not, of course, wish it to be supposed that we thinkthat finality has been reached, and that no further developmentsor improvements are possible. Far from that, we believe thatthey will be made; but it is not necessary that they shall be. PLAIN SWINGING TABLE ON RADIAL DRILL. confined to augmenting economy in fuel. But even in thatprogress will take place. Superheating has for some time pastbeen tried on a scale and with a completeness never beforeattempted in this country. Of the economy secured there is noquestion. Nothing but the lapse of time can tell us whether theprice paid for the saving is or is not too great. The Tungsten Lamp.—All previous developments of incan-descent lamps have told of progress, but the introduction of thetungsten lamp means a revolution in lighting work. Reaching,as it does, a standard three times higher than the present incan-descent lamps, the tungsten lamp surpasses all other forms oflamps in efficiency—the arc and the Nernst are all outclassed, withthe possible exception of the flaming arc and some forms ofvapor tube lighting. By means of its numerous and well-knownadvantages the incandescent lamp has maintained itself in thefield in compe


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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering