New York: George Putnam’s Sons, 1922 & 1928. First Editions. Exceptionally important association copies. The first volume is inscribed “C. Bowyer Vaux from [printed calling card: “Mr. Frederick Law Olmsted. Brookline, Mass.”] Philadelphia. December 13th 1922.” Vaux was the son of Calvert Vaux, who brought in the elder Olmsted to plan what was to be their most famed and celebrated effort, New York’s Central Park. The elder Vaux and Olmsted, Sr. passed away well before this volume was issued (Vaux drowned while visiting this son in Brooklyn). Offsetting from a previously laid in newspaper clipping on the front endpaper; clippings pasted inside the back cover; about fine in a split and chipped dust jacket. The preface notes this volume’s commemoration of the centenary of Olmsted’s birth, describing his historic partnership with Vaux. The second volume is inscribed by Olmsted, “To George Haven Putnam in appreciation alike of old friendships and of his constant helpfulness in the preparation of this book. Frederick Law Olmsted.” Putnam had already retired from the family firm at the time of this volume’s issue, but was clearly still involved with this publication. Very good in dust jacket. Both jackets have minor archival strengthening at the folds. The younger Olmsted took over his father’s firm, becoming a successful architect himself. The family home, offices and archive in Brookline, Massachusetts are well-preserved, operating today as a National Historic Site.