English express engines (illustrations of which appear in that these locomotives ' are of a most peculiar appear tion to the boiler.' As a matter of fact the cranks have nothing whatever to do with the height of the boil er there being no less than 15 inches clearance between the bottom of the boiler and the connecting rod ends at the highest point of their revolution. Engineering News evidently is not aware of or does not appreciate the fact that it was Mr. Buchanan late master mechanic of the New York Central Railroad who first had the courage to place the center of the boiler two feet above
English express engines (illustrations of which appear in that these locomotives ' are of a most peculiar appear tion to the boiler.' As a matter of fact the cranks have nothing whatever to do with the height of the boil er there being no less than 15 inches clearance between the bottom of the boiler and the connecting rod ends at the highest point of their revolution. Engineering News evidently is not aware of or does not appreciate the fact that it was Mr. Buchanan late master mechanic of the New York Central Railroad who first had the courage to place the center of the boiler two feet above the top of a pair of 7-foot driving wheels in order to allow the use of a boiler barrel that should be larger in tried in No. 999 whose boiler centerline was a fraction less than 9 feet above the rails the experiment was eminently successful ; for not only was a large tube tive to track and roadbed. Inside cylinders may be gravity is certainly not one of them any more than is 'a little dumpy smokestack.' This last felicitously named deformity we must further inform our con ago for the New Haven road which we believe is ham pered by some bridges and tunnels that are lower than is common in American practice. The late A. M. Wellington hitnself was never friendly disposed to inside cylinders and for the best of mechanical reasons ; but to hear them thus maligned is enough surely to disturb the shades of that gifted and ever-to-be-lamented editor. REPORT OF THE NICARAGUA CANAL COMMISSION. The present Nicaragua Canal Commission which was appointed under an Act of Congress of June 4 1897 and is popularly known as the Walker commission after Admiral J. G. Walker retired U. S. N. has sub mitted its full report to the President. A preliminary hearing was given last summer with a view to putting while in the nature of things it was itnpossible in the then incomplete state of the data for the commission to give accurate information it was evident that a serious disagreement existed among
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