Published in Nautilus, in 1915, in volume 28, pages 133-136

Published in Nautilus Boston Mass, in 1915, in volume 29, pages 25-28

Published in Nautilis, in 1915, in volume 28, pages 139-140

Published in Nautilis, in 1915, in volume 28, pages 140-141

Published in Nautilis, in 1915, in volume 28, pages 141-143

Published in Nautilis, in 1915, in volume 28, pages 121-127

Published in Nautilis, in 1915, in volume 28, pages 128-129

Published in Nautilis, in 1915, in volume 28, pages 129-131

Published in Nautilis, in 1915, in volume 28, pages 114-116

Published in Nautilis, in 1915, in volume 28, pages 116-119

Published in Nautilis, in 1915, in volume 28, pages 119-120

Published in Nautilis, in 1915, in volume 28, pages 97-104

Published in Nautilis, in 1915, in volume 28, pages 104-106

Published in Nautilis, in 1915, in volume 28, pages 106-108

Published in Nautilis, in 1915, in volume 29, pages 85-87

Published in Nautilis, in 1915, in volume 29, pages 87-88

Published in Nautilis, in 1915, in volume 29, pages 88-90

Published in Nautilis, in 1915, in volume 29, pages 95-96

Published in Nautilis, in 1915, in volume 29, pages 73-74

Published in Nautilis, in 1915, in volume 29, pages 74-78

Published in Nautilis, in 1915, in volume 29, pages 79-81

Published in Nautilis, in 1915, in volume 29, pages 61-63

Published in Nautilis, in 1915, in volume 29, pages 63-67

Published in Nautilis, in 1915, in volume 29, pages 67-72

Published in Nautilis, in 1915, in volume 29, pages 54-57

Published in Nautilis, in 1915, in volume 29, pages 57-59

Published in Nautilis, in 1915, in volume 29, pages 37-41

Published in Nautilis, in 1915, in volume 29, pages 41-43

Published in Nautilis, in 1915, in volume 29, pages 43-46

Published in Nautilis, in 1915, in volume 29, pages 28-29

Published in Nautilis, in 1915, in volume 29, pages 29-35

Published in Nautilis, in 1915, in volume 29, pages 13-16

Published in Nautilis, in 1915, in volume 29, pages 17-18

Published in Nautilis, in 1915, in volume 29, pages 18-20

Published in Nautilis, in 1915, in volume 29, pages 20-24

Published in Nautilis, in 1915, in volume 29, pages 1-4

Published in Nautilis, in 1915, in volume 29, pages 4-11