41. The Empress received Roentgen , and they were conversing in German when he started to proselytize. 42. The permissible level is 20 roentgens . 43. He defined a unit of roentgen . 44. David Roentgen not only mastered intrigue but flat-pack home assembly without an allen key. 45. He was Abraham Roentgen 's best client, purchasing more than two dozen Roentgen pieces. 46. He was Abraham Roentgen's best client, purchasing more than two dozen Roentgen pieces. 47. Critic Hans Peter Roentgen called it'a disturbing chronicle of power, force and seduction. 48. It is being radioactive without giving everyone else on the dais a lethal dose of political roentgens . 49. Roentgen and his peers were correct in calling the rays a " new light ."50. Roentgen told colleagues before recounting how he conclusively confirmed the rays'power to reveal the unseen.
