<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; charset=US-ASCII"> <META content="MSHTML 6.00.2900.2802" name=GENERATOR></HEAD> <BODY id=role_body style="FONT-SIZE: 10pt; COLOR: #000000; FONT-FAMILY: Arial" bottomMargin=7 leftMargin=7 topMargin=7 rightMargin=7><FONT id=role_document face=Arial color=#000000 size=2> <DIV>I think I posed this question before, but I try again. If anybody can provide any _basic_ info about the following two people, who produced engravings of Yellowstone features in the 1870s, I sure appreciate hearing. they are:</DIV> <DIV> </DIV> <DIV>E. Riou, who in addition to Yellowstone was prolific in illustrating a great many geological and geographical works (for example, 600 "engravings on wood" in _A Journey Across South America_ by Paul Marcoy (Blackie & Son, London, 1873). Fine, but I can't seen to find out anything about Riou himself.</DIV> <DIV> </DIV> <DIV>I know even less about one T. Hildebrand, whose wonderful engraving "The Great Geyser" of Crested Pool with Castle in the background implies that the pool is something more than 60 feet in diameter.</DIV> <DIV> </DIV> <DIV>Thanks.</DIV> <DIV> </DIV> <DIV>Scott Bryan</DIV></FONT></BODY></HTML>