Published in Nautilus, in 1913, in volume 26, pages 109-110

Published in Nautilus Boston Mass, in 1913, in volume 27, pages 86-87

Published in Nautilus Boston Mass, in 1913, in volume 27, pages 68-69

Published in Nautilus Boston Mass, in 1913, in volume 26, pages 141-142

Published in Nautilus Boston Mass, in 1913, in volume 27, pages 64-65

Published in Nautilus Boston Mass, in 1913, in volume 27, pages 88-91

Published in Nautilus Boston Mass, in 1913, in volume 26, pages 97-99

Published in Nautilus Boston Mass, in 1913, in volume 26, pages 117-119

Published in Nautilis, in 1913, in volume 26, pages 133-136

Published in Nautilis, in 1913, in volume 26, pages 136-140

Published in Nautilis, in 1913, in volume 26, pages 143-144

Published in Nautilis, in 1913, in volume 26, pages 121-125

Published in Nautilis, in 1913, in volume 26, pages 125-130

Published in Nautilis, in 1913, in volume 26, pages 111-114

Published in Nautilis, in 1913, in volume 26, pages 116-117

Published in Nautilis, in 1913, in volume 26, pages 99-108

Published in Nautilis, in 1913, in volume 27, pages 85-86

Published in Nautilis, in 1913, in volume 27, pages 91-95

Published in Nautilis, in 1913, in volume 27, pages 73-77

Published in Nautilis, in 1913, in volume 27, pages 77-78

Published in Nautilis, in 1913, in volume 27, pages 79-80

Published in Nautilis, in 1913, in volume 27, pages 61-63

Published in Nautilis, in 1913, in volume 27, pages 63-64

Published in Nautilis, in 1913, in volume 27, pages 65-67

Published in Nautilis, in 1913, in volume 27, pages 69-70

Published in Nautilis, in 1913, in volume 27, pages 49-50

Published in Nautilis, in 1913, in volume 27, pages 50-54

Published in Nautilis, in 1913, in volume 27, pages 55-56

Published in Nautilis, in 1913, in volume 27, pages 56-59

Published in Nautilis, in 1913, in volume 27, pages 37-38

Published in Nautilis, in 1913, in volume 27, pages 39-40

Published in Nautilis, in 1913, in volume 27, pages 40-47

Published in Nautilis, in 1913, in volume 27, pages 25-29

Published in Nautilis, in 1913, in volume 27, pages 29-34

Published in Nautilis, in 1913, in volume 27, pages 16-17

Published in Nautilis, in 1913, in volume 27, pages 18-23

Published in Nautilis, in 1913, in volume 27, pages 1-2

Published in Nautilis, in 1913, in volume 27, pages 2-3

Published in Nautilis, in 1913, in volume 27, pages 4-6

Published in Nautilis, in 1913, in volume 27, pages 7-8

Published in Nautilis, in 1913, in volume 27, pages 8-11

Published in Nautilis, in 1913, in volume 27, pages 11-12