Introduction: Remembering the Religious History of A. E. (Tony) Cahill (1933–2004) and Patrick O’Farrell (1933–2003)

This article provides an introduction to a special issue of the Journal of Religious History on the theme religion and memory based on papers presented at the 20th International Congress of Historical Sciences held at the University of New South Wales, Sydney in July 2005. The special issue was prepared as a memorial tribute to the Australian historians Tony Cahill (1933–2004) and Patrick O’Farrell (1933–2003). Patrick O’Farrell made significant contributions to the histories of Ireland, Irish Australia, migration, place and memory. Tony Cahill was a former editor of the Journal of Religious History who published a number of biographical studies of the Irish‐born Archbishop of Sydney, Cardinal Francis Moran (1830–1911). The introduction provides a review summary of the published work of Patrick O’Farrell and brief notes about the seven articles which make up the special issue. The Appendix includes a full bibliography of the published writing of Patrick O’Farrell.     

Fashioning the American Man: The Arrow Collar Man, 1907–1931

This essay is about the Arrow Man, one of the most successful advertising images in early twentieth–century America, and a visual representation of the New Man. The Arrow Man was created by a noted artist, J. C. Leyendecker, to sell the Arrow collar, a new version of detachable collars, a wardrobe staple for most US men and all but working–class men in Britain and Europe since the 1840s. The Arrow Man’s story is part of the transformations in masculine ideals and physical appearance, heightened by the new visual and consumer culture. He carried messages of men’s self–management of appearance and public performance from the nineteenth century into the early twentieth, where it changed from a mark of European gentility into that of the typically American white–collar man. His story is part of fundamental shifts in the US: new occupational and social class configurations and emerging American popular culture.     

The Colored Bridges Problem: In Memory of Frank Harary (1921–2005)

A town has a network of walkways running through it, each colored gray. A red bridge is constructed between every two walkway intersections that are two blocks apart, and a blue bridge is constructed between every two intersections that are three blocks apart. The colored bridges problem asks whether it is possible to take a round‐trip about the town passing through each of its intersections exactly once such that during this trip the walkway or bridge used to enter every intersection is of a different color than that used to exit it. With the aid of graph theory, we show that such a round‐trip is always possible when the walkways of the town form a grid. Conditions are determined under which no blue bridges are needed. Una ciudad tiene una red de caminos de color gris que la atraviesan. Un puente rojo se construye entre cada dos intersecciones de caminos separados por dos manzanas y un puente azul se construye entre cada dos intersecciones que están a tres manzanas de distancia. El problema de los puentes de colores se pregunta si es posible hacer un viaje alrededor de la ciudad pasando por cada una de las intersecciones exactamente una sola vez de modo que durante este viaje el camino o puente utilizado para entrar en cada intersección es de color distinto al que se utiliza para salir. Con la ayuda de la teoría de grafos, mostramos que tal viaje es siempre posible cuando los caminos de la ciudad forman una cuadrícula. Se determinan las condiciones bajo las cuales no son necesarios los puentes azules. 城镇中贯穿于其中的通道构成的网络标记为灰色。任意两个分离区域的通道交叉处构建一个红色的桥,而三个分离区域的两两交叉处则构建一个蓝色的桥。有色桥问题是关于能否对任意交叉处仅通过一次就能遍历整个城镇,也就是在该旅程中在进入和走出每个交叉点的道路或桥是不同颜色的问题。借助于图论,本文显示了当城镇道路网络构建格网时,上述路径总是存在的。当不需要蓝色的桥时,条件是完全确定的。