TY  - GEN
AU  - E.H.Chapman
TI  - Wireless to day
U1  - 384.5,CHE 
PY  - 1945///
CY  - London
PB  - Oxford universty press
KW  - Wireless to day
N1  - The Men Who Succeeded and The Men Who Failed (Page-9), Early Spark Telegraphy (Page-16), A Simple Experiments (Page-21), Tuning (Page-25), Detectors (Page-30), Continuous Waves (Page-33), The Aladdin Lamp of Wireless (Page-37), Ether – Waves (Page-51), Amplification and Vale Recovers (Page-78), Broadcasting (Page-91), Wireless on Board Ship (Page-108), Wireless and Aviation (Page-125), Wireless and War (Page-137), Pictures by Wireless (Page-141). Mirrors in the Sky (Page-146), Television (Page-149).
ER  -