Published in Journal of The Washington Academy of Sciences, in 1924, in volume 14, pages 103-108
Published in Journal of The Washington Academy of Sciences, in 1924, in volume 14, pages 174-177
Published in Journal of The Washington Academy of Sciences, in 1924, in volume 14, pages 177-180
Published in Journal of The Washington Academy of Sciences, in 1924, in volume 14, pages 200-202
Published in Journal of The Washington Academy of Sciences, in 1924, in volume 14, pages 203-204
Published in Journal of The Washington Academy of Sciences, in 1924, in volume 14, pages 247-253
Published in Journal of The Washington Academy of Sciences, in 1924, in volume 14, pages 265-269
Published in Journal of The Washington Academy of Sciences, in 1924, in volume 14, pages 294-303
Published in Journal of The Washington Academy of Sciences, in 1924, in volume 14, pages 343-345
Published in Journal of The Washington Academy of Sciences, in 1924, in volume 14, pages 366-369
Published in Journal of The Washington Academy of Sciences, in 1924, in volume 14, pages 369-371
Published in Journal of The Washington Academy of Sciences, in 1924, in volume 14, pages 372-373
Published in Journal of The Washington Academy of Sciences, in 1924, in volume 14, pages 385-393
Published in Journal of The Washington Academy of Sciences, in 1924, in volume 14, pages 432-434
Published in Journal of The Washington Academy of Sciences, in 1924, in volume 14, pages 487-491
Published in Journal of The Washington Academy of Sciences, in 1924, in volume 14, issue 4, pages 93-99
Published in Journal of The Washington Academy of Sciences, in 1924, in volume 14, issue 5, pages 108-116
Published in Journal of The Washington Academy of Sciences, in 1924, in volume 14, issue 6, pages 139-145
Published in Journal of The Washington Academy of Sciences, in 1924, in volume 14, issue 9, pages 195-199
Published in Journal of The Washington Academy of Sciences, in 1924, in volume 14, issue 10, pages 212-213
Published in Journal of The Washington Academy of Sciences, in 1924, in volume 14, issue 11, pages 238-247
Published in Journal of The Washington Academy of Sciences, in 1924, in volume 14, issue 12, pages 269-272
Published in Journal of The Washington Academy of Sciences, in 1924, in volume 14, issue 13, pages 284-293
Published in Journal of The Washington Academy of Sciences, in 1924, in volume 14, issue 15, pages 363-364
Published in Journal of The Washington Academy of Sciences, in 1924, in volume 14, issue 15, pages 364-366
Published in Journal of The Washington Academy of Sciences, in 1924, in volume 14, issue 19, pages 447-451
Published in Journal of The Washington Academy of Sciences, in 1924, in volume 14, issue 20, pages 472-486
Published in Journal of The Washington Academy of Sciences, in 1924, in volume 14, issue 21, pages 491-492
Published in Journal of The Washington Academy of Sciences, in 1924, in volume 1924, pages 213-215