ect result of an intimate acquaintance with theproblem in all its aspects, and of long continued study ofthe mechanical details. The grate insures complete com-bustion by reason of an absolutely clean fire bed, and reduces m 1 m » Porpoise Fishing on the Atlantic Coast. The Public Ledger states the… … away with the labor of the engineer or fireman. The firecan be effectively cleaned without opening the door; steamwill not run down during the operation, and the boilers willnot suffer in consequence of the expansion aud contractioncaused by the frequent opening of the doors. This factwill be…
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