Published in Proceedings of the Biological Society of Washington, in 1904, in volume 17, pages 1-16

Published in Proc. Biol. Soc. Wash., in 1904, in volume 17, pages 17-20

Published in Proceedings of The Biological Society of Washington, in 1904, in volume 17, pages 21-50

Published in Proceedings of the Biological Society of Washington, in 1904, in volume 17, pages 51-52

Published in Proceedings of The Biological Society of Washington, in 1904, in volume 17, pages 53-54

Published in Proceedings of the Biological Society of Washington, in 1904, in volume 17, pages 55-77

Published in Proceedings of The Biological Society of Washington, in 1904, in volume 17, pages 79-82

Published in Proceedings of The Biological Society of Washington, in 1904, in volume 17, pages 83-89

Published in Proceedings of The Biological Society of Washington, in 1904, in volume 17, pages 91-98

Published in Proceedings of The Biological Society of Washington, in 1904, in volume 17, pages 103-110

Published in Proceedings of The Biological Society of Washington, in 1904, in volume 17, pages 111-112

Published in Proceedings of The Biological Society of Washington, in 1904, in volume 17, pages 113-114

Published in Proceedings of The Biological Society of Washington, in 1904, in volume 17, pages 115-117

Published in Proceedings of The Biological Society of Washington, in 1904, in volume 17, pages 119-120

Published in Proceedings of The Biological Society of Washington, in 1904, in volume 17, pages 121-122

Published in Proceedings of The Biological Society of Washington, in 1904, in volume 17, pages 123-125

Published in Proceedings of The Biological Society of Washington, in 1904, in volume 17, pages 127-128

Published in Proceedings of The Biological Society of Washington, in 1904, in volume 17, pages 129-130

Published in Proceedings of The Biological Society of Washington, in 1904, in volume 17, pages 131-133

Published in Proceedings of The Biological Society of Washington, in 1904, in volume 17, pages 135-137

Published in Proceedings of The Biological Society of Washington, in 1904, in volume 17, pages 139-145

Published in Proceedings of The Biological Society of Washington, in 1904, in volume 17, pages 147-150

Published in Proceedings of The Biological Society of Washington, in 1904, in volume 17, pages 153-155

Published in Proceedings of The Biological Society of Washington, in 1904, in volume 17, pages 159-160

Published in Proceedings of the Biological Society of Washington, in 1904, in volume 17, pages 161-162

Published in Proceedings of The Biological Society of Washington, in 1904, in volume 17, pages 163-164

Published in Proceedings of The Biological Society of Washington, in 1904, in volume 17, pages 165-166

Published in Proceedings of The Biological Society of Washington, in 1904, in volume 17, pages 166-167

Published in Proceedings of The Biological Society of Washington, in 1904, in volume 17, pages 167

Published in Proceedings of the Biological Society of Washington, in 1904, in volume 17, pages 169-172