Published in Journal of The Washington Academy of Sciences, in 1943, in volume 33, pages 214-216

Published in Journal of The Washington Academy of Sciences, in 1943, in volume 33, pages 259-265

Published in Journal of The Washington Academy of Sciences, in 1943, in volume 33, pages 373-384

Published in Journal of The Washington Academy of Sciences, in 1943, in volume 33, pages 344-345

Published in Journal of The Washington Academy of Sciences, in 1943, in volume 33, pages 33-34

Published in Journal of The Washington Academy of Sciences, in 1943, in volume 33, pages 142-146

Published in Journal of The Washington Academy of Sciences, in 1943, in volume 33, pages 358-368

Published in Journal of The Washington Academy of Sciences, in 1943, in volume 33, pages 216-223

Published in Journal of The Washington Academy of Sciences, in 1943, in volume 33, pages 75-79

Published in Journal of The Washington Academy of Sciences, in 1943, in volume 33, pages 255-256

Published in Journal of The Washington Academy of Sciences, in 1943, in volume 33, issue 6, pages 170-182

Published in Journal of The Washington Academy of Sciences, in 1943, in volume 33, issue 3, pages 70-72

Published in Jour Wash Ington Acad Sci, in 1943, in volume 33, pages 371-373

Published in Jour Washington Acad Sci, in 1943, in volume 33, pages 8-11

Published in Jour Washington Acad Sci, in 1943, in volume 33, pages 28-31

Published in Jour Washington Acad Sci, in 1943, in volume 33, pages 34-38

Published in Jour Washington Acad Sci, in 1943, in volume 33, pages 39-43

Published in Jour Washington Acad Sci, in 1943, in volume 33, pages 44-54

Published in Jour Washington Acad Sci, in 1943, in volume 33, pages 54-59

Published in Jour Washington Acad Sci, in 1943, in volume 33, pages 72-74

Published in Jour Washington Acad Sci, in 1943, in volume 33, pages 79-82

Published in Jour Washington Acad Sci, in 1943, in volume 33, pages 83-90

Published in Jour Washington Acad Sci, in 1943, in volume 33, pages 90-94

Published in Jour Washington Acad Sci, in 1943, in volume 33, pages 97-105

Published in Jour Washington Acad Sci, in 1943, in volume 33, pages 106-110

Published in Jour Washington Acad Sci, in 1943, in volume 33, pages 135-140

Published in Jour Washington Acad Sci, in 1943, in volume 33, pages 146-147

Published in Jour Washington Acad Sci, in 1943, in volume 33, pages 147-160

Published in Jour Washington Acad Sci, in 1943, in volume 33, pages 161-169

Published in Jour Washington Acad Sci, in 1943, in volume 33, pages 223-224

Published in Jour Washington Acad Sci, in 1943, in volume 33, pages 251-255

Published in Jour Washington Acad Sci, in 1943, in volume 33, pages 272-273

Published in Jour Washington Acad Sci, in 1943, in volume 33, pages 273-275

Published in Jour Washington Acad Sci, in 1943, in volume 33, pages 276-286

Published in Jour Washington Acad Sci, in 1943, in volume 33, pages 289-315

Published in Jour Washington Acad Sci, in 1943, in volume 33, pages 316-317

Published in Jour Washington Acad Sci, in 1943, in volume 33, pages 353-358

Published in Jour Washington Acad Sci, in 1943, in volume 33, pages 369-371

Published in Journal of The Washington Academy of Sciences, in 1943, in volume 33, pages 21-28

Published in Journal of The Washington Academy of Sciences, in 1943, in volume 33, pages 59-62

Published in Journal of The Washington Academy of Sciences, in 1943, in volume 33, pages 183-189

Published in Journal of The Washington Academy of Sciences, in 1943, in volume 33, pages 193-203

Published in Journal of The Washington Academy of Sciences, in 1943, in volume 33, pages 225-235

Published in Journal of The Washington Academy of Sciences, in 1943, in volume 33, pages 244-249

Published in Jour Washington Acad Sci, in 1943, in volume 33, pages 11-20

Published in Jour Washington Acad Sci, in 1943, in volume 33, pages 130-135