Published in Journal of The Washington Academy of Sciences, in 1944, in volume 34, pages 27-32

Published in Journal of The Washington Academy of Sciences, in 1944, in volume 34, pages 49-58

Published in Jour Washington Acad Sci, in 1944, in volume 34, pages 59-61

Published in Journal of The Washington Academy of Sciences, in 1944, in volume 34, pages 86-89

Published in Journal of The Washington Academy of Sciences, in 1944, in volume 34, pages 89-93

Published in Journal of The Washington Academy of Sciences, in 1944, in volume 34, pages 93-95

Published in Jour Washington Acad Sci, in 1944, in volume 34, pages 110-112

Published in Jour Washington Acad Sci, in 1944, in volume 34, pages 112-119

Published in Journal of The Washington Academy of Sciences, in 1944, in volume 34, pages 129-132

Published in Jour Washington Acad Sci, in 1944, in volume 34, pages 132-133

Published in Jour Washington Acad Sci, in 1944, in volume 34, pages 139-154

Published in Jour Washington Acad Sci, in 1944, in volume 34, pages 154-156

Published in Jour Washington Acad Sci, in 1944, in volume 34, pages 157-158

Published in Jour Washington Acad Sci, in 1944, in volume 34, pages 159

Published in Jour Washington Acad Sci, in 1944, in volume 34, pages 228-239

Published in Jour Washington Acad Sci, in 1944, in volume 34, pages 259-268

Published in Journal of The Washington Academy of Sciences, in 1944, in volume 34, pages 268-273

Published in Jour Washington Acad Sci, in 1944, in volume 34, pages 273

Published in Journal of The Washington Academy of Sciences, in 1944, in volume 34, pages 274-276

Published in Journal of The Washington Academy of Sciences, in 1944, in volume 34, pages 303-308

Published in Journal of The Washington Academy of Sciences, in 1944, in volume 34, pages 311-317

Published in Jour Washington Acad Sci, in 1944, in volume 34, pages 333-341

Published in Jour Washington Acad Sci, in 1944, in volume 34, pages 341-346

Published in Jour Washington Acad Sci, in 1944, in volume 34, pages 349-351

Published in Journal of The Washington Academy of Sciences, in 1944, in volume 34, pages 352-357

Published in Jour Washington Acad Sci, in 1944, in volume 34, pages 360-373

Published in Journal of The Washington Academy of Sciences, in 1944, in volume 34, pages 373-375

Published in Journal of The Washington Academy of Sciences, in 1944, in volume 34, pages 375-380

Published in Jour Washington Acad Sci, in 1944, in volume 34, pages 388-390

Published in Jour Washington Acad Sci, in 1944, in volume 34, pages 391-398

Published in Journal of The Washington Academy of Sciences, in 1944, in volume 34, pages 398-404

Published in Journal of The Washington Academy of Sciences, in 1944, in volume 34, pages 407-409

Published in Journal of The Washington Academy of Sciences, in 1944, in volume 34, pages 410-412

Published in Journal of The Washington Academy of Sciences, in 1944, in volume 34, issue 1, pages 16-23

Published in Journal of The Washington Academy of Sciences, in 1944, in volume 34, issue 2, pages 46-49

Published in Journal of The Washington Academy of Sciences, in 1944, in volume 34, issue 4, pages 120-129

Published in Journal of The Washington Academy of Sciences, in 1944, in volume 34, issue 7, pages 209-213

Published in Journal of The Washington Academy of Sciences, in 1944, in volume 34, issue 12, pages 405-407