Remember, however, that the men who have accomplished most in this world worked the longest hours, and any one with a regular occupation must utilize his leisure hours to obtain prestige.  The difference between one man and another of the same natural ability lies entirely in the amount of his information and the facility with which he can use it.  Life is short, and you must realize that now is your opportunity.  If any diversion in the way of pleasure or even certain kinds of congenial work is offered, consider it in connection with the question, “Will this be conducive to my higher aim?” This implies that you have a higher aim; and if you have it, and weigh everything in this way, you will find that every moment of exertion adds something to your storehouse of information and brings you nearer to the accomplishment of that higher aim.

In closing, we thank the ladies and gentlemen present for their close attention to details of special interest only to those engaged in technical study or practice.

We congratulate you, young gentlemen of the class of ’87, for the success you have thus far obtained, and trust that you will persevere in well doing and win greater success in the future.  We need hardly state that all that has been said was in a spirit of kindness, and we feel assured that much of it has been seconded by your parents, to whom no less than to all parents here present off or on the stage, the speaker not excepted, a serious, thoughtful problem has been, still is, and will continue to be to many, “What shall we do with our boys.”—­Stevens Indicator.

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HEATING MARINE BOILERS WITH LIQUID FUEL.

We were recently witness of an experiment made at Eragny Conflans on the steam yacht Flamboyante.  It was a question of testing a new vaporizer or burner for liquid fuel.  The experiment was a repetition of the one that the inventor, Mr. G. Dietrich, recently performed with success in the presence of Admirals Cloue and Miot.

The Flamboyante is 58 ft. in length, 9 ft. in width, draws 5 ft. of water, and has a displacement of 10 tons.  She is provided with a double vertical engine supplied by a Belleville boiler that develops 28 horse power.  The screw makes 200 revolutions per minute, and gives the yacht a speed of 61/2 knots.

Mr. Dietrich’s vaporizer appears to be very simple, and has given so good results that we have thought it of interest to give our readers a succinct description of it.  In this apparatus, the inventor has endeavored to obtain an easy regulation of the two essential elements—­naphtha and steam.