Inside Out Library · ExploreThe steam engine and turbine; a text-book for engineering colleges (1911)Heck, Robert Culbertson Hays, 1870- · New York, D. Van Nostrand company · leaf 543Fig. 367. — De Laval TurbineBlade.Steam-engines · Steam-turbinesInternet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.More pictures from The steam engine and turbine; a text-book for engineering collegesMore like this