Published in Journal of The Washington Academy of Sciences, in 1953, in volume 43, pages 1-13

Published in Journal of the Washington Academy of Sciences, in 1953, in volume 43, pages 16-18

Published in Journal of The Washington Academy of Sciences, in 1953, in volume 43, pages 18-26

Published in Jour Washington Acad Sci, in 1953, in volume 43, pages 26-28

Published in Journal of the Washington Academy of Sciences, in 1953, in volume 43, pages 29-43

Published in Jour Washington Acad Sci, in 1953, in volume 43, pages 57-60

Published in Jour Washington Acad Sci, in 1953, in volume 43, pages 65

Published in Journal of The Washington Academy of Sciences, in 1953, in volume 43, pages 66-68

Published in Jour Washington Acad Sci, in 1953, in volume 43, pages 69-77

Published in Journal of The Washington Academy of Sciences, in 1953, in volume 43, pages 77-85

Published in Journal of The Washington Academy of Sciences, in 1953, in volume 43, pages 88-93

Published in Jour Washington Acad Sci, in 1953, in volume 43, pages 103-105

Published in Journal of The Washington Academy of Sciences, in 1953, in volume 43, pages 105-106

Published in Journal of The Washington Academy of Sciences, in 1953, in volume 43, pages 117-119

Published in Journal of The Washington Academy of Sciences, in 1953, in volume 43, pages 121-127

Published in Jour Washington Acad Sci, in 1953, in volume 43, pages 128-135

Published in Journal of The Washington Academy of Sciences, in 1953, in volume 43, pages 137-147

Published in Jour Washington Acad Sci, in 1953, in volume 43, pages 148-150

Published in Journal of The Washington Academy of Sciences, in 1953, in volume 43, pages 150-162

Published in Journal of The Washington Academy of Sciences, in 1953, in volume 43, pages 163-166

Published in Jour Washington Acad Sci, in 1953, in volume 43, pages 166-168

Published in Journal of The Washington Academy of Sciences, in 1953, in volume 43, pages 169-179

Published in Journal of The Washington Academy of Sciences, in 1953, in volume 43, pages 182-184

Published in Jour Washington Acad Sci, in 1953, in volume 43, pages 185-189

Published in Journal of The Washington Academy of Sciences, in 1953, in volume 43, pages 189-194

Published in Journal of The Washington Academy of Sciences, in 1953, in volume 43, pages 194-197

Published in Jour Washington Acad Sci, in 1953, in volume 43, pages 197-200

Published in Jour Washington Acad Sci, in 1953, in volume 43, pages 201-203

Published in Jour Washington Acad Sci, in 1953, in volume 43, pages 213-225

Published in Jour Washington Acad Sci, in 1953, in volume 43, pages 226-231

Published in Journal of The Washington Academy of Sciences, in 1953, in volume 43, pages 232-237

Published in Journal of The Washington Academy of Sciences, in 1953, in volume 43, pages 237-238

Published in Journal of The Washington Academy of Sciences, in 1953, in volume 43, pages 255-258

Published in Journal of The Washington Academy of Sciences, in 1953, in volume 43, pages 258-259

Published in Jour Washington Acad Sci, in 1953, in volume 43, pages 260-261

Published in Journal of The Washington Academy of Sciences, in 1953, in volume 43, pages 279-287

Published in Jour Washington Acad Sci, in 1953, in volume 43, pages 287-293

Published in Jour Washington Acad Sci, in 1953, in volume 43, pages 293-299

Published in Journal of The Washington Academy of Sciences, in 1953, in volume 43, pages 299-304

Published in Jour Washington Acad Sci, in 1953, in volume 43, pages 305-311

Published in Journal of The Washington Academy of Sciences, in 1953, in volume 43, pages 311-317

Published in Jour Washington Acad Sci, in 1953, in volume 43, pages 317-320

Published in Jour Washington Acad Sci, in 1953, in volume 43, pages 320-325

Published in Jour Washington Acad Sci, in 1953, in volume 43, pages 325-332

Published in Journal of The Washington Academy of Sciences, in 1953, in volume 43, pages 333-335

Published in Journal of The Washington Academy of Sciences, in 1953, in volume 43, pages 336-340

Published in Journal of The Washington Academy of Sciences, in 1953, in volume 43, pages 344-346

Published in Journal of The Washington Academy of Sciences, in 1953, in volume 43, pages 346-353

Published in Journal of The Washington Academy of Sciences, in 1953, in volume 43, pages 354-358

Published in Journal of The Washington Academy of Sciences, in 1953, in volume 43, pages 358-360

Published in Journal of The Washington Academy of Sciences, in 1953, in volume 43, pages 360-373

Published in Journal of The Washington Academy of Sciences, in 1953, in volume 43, pages 373-381

Published in Journal of The Washington Academy of Sciences, in 1953, in volume 43, pages 381-383

Published in Journal of The Washington Academy of Sciences, in 1953, in volume 43, pages 384-386

Published in Jour Washington Acad Sci, in 1953, in volume 43, pages 386-388

Published in Journal of The Washington Academy of Sciences, in 1953, in volume 43, pages 396-401

Published in Journal of The Washington Academy of Sciences, in 1953, in volume 43, pages 405-7

Published in Jour Washington Acad Sci, in 1953, in volume 43, pages 408-412

Published in Journal of The Washington Academy of Sciences, in 1953, in volume 43, pages 412-416

Published in Journal of The Washington Academy of Sciences, in 1953, in volume 43, pages 417-422

Published in Jour Washington Acad Sci, in 1953, in volume 43, pages 422-424

Published in Journal of The Washington Academy of Sciences, in 1953, in volume 43, issue 3, pages 68-69

Published in Journal of The Washington Academy of Sciences, in 1953, in volume 43, issue 4, pages 119-121

Published in Journal of The Washington Academy of Sciences, in 1953, in volume 43, issue 6, pages 179-182

Published in Journal of The Washington Academy of Sciences, in 1953, in volume 43, issue 12, pages 401-404