Published in Nautilis, in 1936, in volume 49, pages 71-73

Published in Nautilis, in 1936, in volume 49, pages 73-79

Published in Nautilis, in 1936, in volume 49, pages 79-84

Published in Nautilis, in 1936, in volume 49, pages 85-87

Published in Nautilis, in 1936, in volume 49, pages 91-93

Published in Nautilis, in 1936, in volume 49, pages 93-97

Published in Nautilis, in 1936, in volume 49, pages 97-98

Published in Nautilis, in 1936, in volume 49, pages 98-99

Published in Nautilis, in 1936, in volume 49, pages 99-100

Published in Nautilis, in 1936, in volume 49, pages 100-102

Published in Nautilis, in 1936, in volume 49, pages 102-103

Published in Nautilis, in 1936, in volume 49, pages 107-109

Published in Nautilis, in 1936, in volume 49, pages 109-110

Published in Nautilis, in 1936, in volume 49, pages 110-111

Published in Nautilis, in 1936, in volume 49, pages 112-113

Published in Nautilis, in 1936, in volume 49, pages 113-114

Published in Nautilis, in 1936, in volume 49, pages 116-119

Published in Nautilis, in 1936, in volume 49, pages 119-127

Published in Nautilis, in 1936, in volume 49, pages 127-130

Published in Nautilis, in 1936, in volume 49, pages 130-134

Published in Nautilis, in 1936, in volume 49, pages 135-139

Published in Nautilis, in 1936, in volume 49, issue 3, pages 88-91

Published in Nautilis, in 1936, in volume 50, pages 1-8

Published in Nautilis, in 1936, in volume 50, pages 8-13

Published in Nautilis, in 1936, in volume 50, pages 13-14

Published in Nautilis, in 1936, in volume 50, pages 15-16

Published in Nautilis, in 1936, in volume 50, pages 16-19

Published in Nautilis, in 1936, in volume 50, pages 19-20

Published in Nautilis, in 1936, in volume 50, pages 20-22

Published in Nautilis, in 1936, in volume 50, pages 23-24

Published in Nautilis, in 1936, in volume 50, pages 24-28

Published in The Nautilus, in 1936, in volume 50, pages 30

Published in Nautilis, in 1936, in volume 50, pages 33-36

Published in Nautilis, in 1936, in volume 50, pages 37-40

Published in Nautilis, in 1936, in volume 50, pages 41-42

Published in Nautilis, in 1936, in volume 50, pages 44-46

Published in Nautilis, in 1936, in volume 50, pages 46-50

Published in Nautilis, in 1936, in volume 50, pages 51-52

Published in Nautilis, in 1936, in volume 50, pages 53-54

Published in Nautilis, in 1936, in volume 50, pages 54-58

Published in Nautilis, in 1936, in volume 50, pages 64-66

Published in Nautilis, in 1936, in volume 50, pages 66-67

Published in Nautilis, in 1936, in volume 50, pages 67-69