. Engineering practice and theory, for steam engineers ... . ? • * JAMES L. ROBERTSON SONS, 204 Fulton Street, hsiieW yoirjk: 16. AWATCH an INDICATOR should be goodyears hence as at first. Some INDI-CATORS like some watches are madeby contract to sell, and are dear at anyprice. A few dollars more will purchasean IMPROVED indicator made has the same care in all details, particularlytesting the springs. U. 8. Navy method and standard of 2%variation is followed. Sold at a price within reach of every engineer. in IMPROVED WILLIS PLANIMETER in velvet-lined,leather case.

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