For centuries, travel was an important part of a gardener's initial and continuing professional training. Educational journeys to parks and gardens at home and abroad were consistently recorded in lengthy reports and articles for professional journals. The travel report by Hans Jancke (1850-1920), a court gardener who served the Prussian kings in Potsdam, Germany, is typical of this genre. Jancke's manuscript, which until now remained unpublished, describes his 1874-1875 apprenticeship at Knowsley, the seat of the Earl of Derby near Liverpool, England. Containing extensive plant lists and...