= March 24 = == What was a `martin box` ? == Hello, referents ! I see on some old (circa 1910) photos taken in some remote parts of USA : a box (about 10x10x15 in.) standing on the top of a pole which I think may be a telephone or telegraph pole. The legend of the photo, somewhat sibylline, says that `it is a martin box`. What was that box ? (...