GTON, D. C., August 2, up to the present day. Contained in SCIENTIFIC AM ERI- 1888.—The Navy Department, having in view the possi- space will be furnished by the undersigned upon appli- Ventilating Fans, CAN SUPPLEMENT, No. 629. Price 10 cents. To be ble decrease in weight of machinery in vessels… … furnish a boiler of the type of one of those proposed for NAVAL ARCHITECTURE.—AN _IN- UTICA, N. ¥., U.S. A, H ORT-HA ND Send for Catalog the vessel and prepare it for test, either at their own works or at such place as may be arranged with the De- of Books and helps teresting review, by Mr. R.…
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