Published in Journal of The Washington Academy of Sciences, in 1974, in volume 64, pages 3
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Published in Journal of The Washington Academy of Sciences, in 1974, in volume 64, pages 4-10
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Published in Journal of The Washington Academy of Sciences, in 1974, in volume 64, pages 11
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Published in Journal of The Washington Academy of Sciences, in 1974, in volume 64, pages 12-14
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Published in Journal of The Washington Academy of Sciences, in 1974, in volume 64, pages 48-51
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Published in Journal of The Washington Academy of Sciences, in 1974, in volume 64, pages 52-59
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Published in Journal of The Washington Academy of Sciences, in 1974, in volume 64, pages 63-68
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Published in Journal of The Washington Academy of Sciences, in 1974, in volume 64, pages 68-78
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Published in Journal of The Washington Academy of Sciences, in 1974, in volume 64, pages 91-108
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Published in Journal of The Washington Academy of Sciences, in 1974, in volume 64, pages 109-125
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Published in Journal of The Washington Academy of Sciences, in 1974, in volume 64, pages 129-134
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Published in Journal of The Washington Academy of Sciences, in 1974, in volume 64, pages 135-144
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Published in Journal of The Washington Academy of Sciences, in 1974, in volume 64, pages 158-179
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Published in Journal of The Washington Academy of Sciences, in 1974, in volume 64, pages 195-198
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Published in Journal of The Washington Academy of Sciences, in 1974, in volume 64, pages 209-213
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Published in Journal of The Washington Academy of Sciences, in 1974, in volume 64, pages 213-217
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Published in Journal of The Washington Academy of Sciences, in 1974, in volume 64, pages 223-233
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Published in Journal of The Washington Academy of Sciences, in 1974, in volume 64, pages 234-235
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Published in Journal of The Washington Academy of Sciences, in 1974, in volume 64, pages 289-291
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Published in Journal of The Washington Academy of Sciences, in 1974, in volume 64, pages 292-294
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Published in Journal of The Washington Academy of Sciences, in 1974, in volume 64, pages 295-298
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Published in Journal of The Washington Academy of Sciences, in 1974, in volume 64, pages 298-302
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Published in Journal of The Washington Academy of Sciences, in 1974, in volume 64, pages 302-303
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Published in Journal of The Washington Academy of Sciences, in 1974, in volume 64, pages 303-308
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Published in Journal of The Washington Academy of Sciences, in 1974, in volume 64, pages 308-323
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