Published in Nautilis, in 1939, in volume 52, pages 73-77

Published in Nautilis, in 1939, in volume 52, pages 77-78

Published in Nautilis, in 1939, in volume 52, pages 79-84

Published in Nautilis, in 1939, in volume 52, pages 84-86

Published in Nautilis, in 1939, in volume 52, pages 87-88

Published in Nautilis, in 1939, in volume 52, pages 88-89

Published in Nautilis, in 1939, in volume 52, pages 89-81

Published in Nautilis, in 1939, in volume 52, pages 93-94

Published in Nautilis, in 1939, in volume 52, pages 94-95

Published in Nautilis, in 1939, in volume 52, pages 95-97

Published in Nautilis, in 1939, in volume 52, pages 98-99

Published in Nautilis, in 1939, in volume 52, pages 103-105

Published in Nautilis, in 1939, in volume 52, pages 109-110

Published in Nautilis, in 1939, in volume 52, pages 110-112

Published in Nautilis, in 1939, in volume 52, pages 112-115

Published in Nautilis, in 1939, in volume 52, pages 115-117

Published in Nautilis, in 1939, in volume 52, pages 117-120

Published in Nautilis, in 1939, in volume 52, pages 120-121

Published in Nautilis, in 1939, in volume 52, pages 122-123

Published in Nautilus Philadelphia, in 1939, in volume 52, pages 123-124

Published in Nautilis, in 1939, in volume 52, pages 124-128

Published in Nautilis, in 1939, in volume 52, pages 129-131

Published in Nautilis, in 1939, in volume 52, pages 132-134

Published in Nautilis, in 1939, in volume 52, pages 135-138

Published in Nautilis, in 1939, in volume 53, pages 1-4

Published in Nautilis, in 1939, in volume 53, pages 4-7

Published in Nautilis, in 1939, in volume 53, pages 7-8

Published in Nautilis, in 1939, in volume 53, pages 8-16

Published in Nautilis, in 1939, in volume 53, pages 22-23

Published in Nautilis, in 1939, in volume 53, pages 23-26

Published in Nautilis, in 1939, in volume 53, pages 27-28

Published in Nautilis, in 1939, in volume 53, pages 28-29

Published in Nautilis, in 1939, in volume 53, pages 37-39

Published in Nautilis, in 1939, in volume 53, pages 40-42

Published in Nautilis, in 1939, in volume 53, pages 42-43

Published in Nautilis, in 1939, in volume 53, pages 43-45

Published in Nautilis, in 1939, in volume 53, pages 45-47

Published in Nautilis, in 1939, in volume 53, pages 47-49

Published in Nautilis, in 1939, in volume 53, pages 49-53

Published in Nautilis, in 1939, in volume 53, pages 53-56

Published in Nautilis, in 1939, in volume 53, pages 56-61

Published in Nautilis, in 1939, in volume 53, pages 61-64

Published in Nautilis, in 1939, in volume 53, pages 64-65

Published in Nautilis, in 1939, in volume 53, pages 68-72