19310. Dall, W. H.   Results of the Branner-Agassiz Expedition to Brazil. V. Mollusks from the Vicinity of Pernambuco.   Washington Academy of Sciences, 1901, Proceedings, 3 : 139-147.   Printed wraps, minor signs of use and age discoloration, text in very good condition.    $7.00

67086. Greene, E. L.   A Study of Rhus Glabra.   Washington Academy of Sciences, 1906, Proceedings of the Washington Academy of Sciences, Volume 8 : pages 167-196.   Printed wraps, previous owners book stamp, minor signs of use and age, text in very good condition.    $15.00

8735. Gidley, J. W.   Evidence Bearing on Tooth-Cusp Development.   Washington Academy of Science, 1906, Proceedings, 8 : 91-110, 2 plates.   Printed warps, minor previous owner marks including Craig C. Black signature, minor signs or use and age, text in very good condition.    $11.00

67823. Standley, P. C.   A New Genus of Chenopodiaceae from Arizona.   Washington Academy of Sciences, 1915, Journal of the Washington Academy of Sciences, Volume 5, Number 2 : pages 57-59.   Printed wraps, previous owners book stamp, minor signs of use and age, text in very good condition.    $4.00

67821. Standley, P. C.   Botany. - The North American Tribes and Genera of Amaranthaceae.   Washington Academy of Sciences, 1915, Journal of the Washington Academy of Sciences, Volume 5, Number 11 : pages 391-396.   Reprint, previous owners book stamp, minor signs of use and age, text in very good condition.    $4.00

67820. Standley, P. C.   The Application of the Generic Name Achyranthes.   Washington Academy of Sciences, 1915, Journal of the Washington Academy of Sciences, Volume 5, Number 3 : pages 72-76.   Printed wraps, previous owners book stamp, minor signs of use and age, text in very good condition.    $4.00

67306. Hitchcock, A. S.   Taxonomic Botany and the Washington Botanist.   The Washington Academy of Sciences, 1917, Journal of the Washington Academy of Sciences, Volume 7, Number 9 : pages 251-263.   Printed wraps, previous owners book stamp, minor signs of use and age, text in very good condition.    $8.00

66971. Blake, S. F.   A Pleiminary Revision of the North American and West Indian avocados (Persea spp.).   The Washington Academy of Sciences, 1919, Journal of the Washington Academy of Sciences, Volume 10, Number 1 : pages 9-21 with 2 figures.   Reprint, previous owners stamp, minor signs of use and age, text in very good condition.    $5.00

66970. Blake, S. F.   The Anay, a New Edible-Fruited Relative of the Avocado; and A preliminary revision of the North American and West Indian Avocados (Persea spp).   The Washington Academy of Sciences, 1919, Journal of the Washington Academy of Sciences, Volume 9, Number 16 : pages 457-462 with 1 figure.   Printed wraps, previous owners book stamp, other minor signs of use and age, text in very good condition.    $5.00

66972. Blake, S. F.   Revision of True Mahoganies.   The Washington Academy of Sciences, 1920, Journal of the Washington Academy of Sciences, Volume 10, Number 10 : pages 286-297 with 2 figures.   Reprint, previous owners stamp, minor signs of use and age, text in very good condition.    $5.00

10972. Editor.   Proceedings of the Academy and Affiliated Societies, Geological Society.   Washington Academy of Science, 1925, Journal, 15 (8) : 182-184.   Off-print, usual signs of use and age, text in good minus condition.    $1.50

10971. Editor.   Proceedings of the Academy and Affiliated Societies, Geological Society.   Washington Academy of Science, 1927, Journal, 17 (5) : 118-132.   Printed wraps, minor signs of use and age, text in good plus condition.    $6.00

67827. Standley, P. C.   Botany. - Fourteen New Species from Hispaniola.   The Washington Academy of Sciences, 1927, Journal of the Washington Academy of Sciences, Volume 17, Number 3 : pages 65-73 with 2 figures.   Reprint, previous owners book stamp, usual signs of use and age, text in good or better condition.    $5.00

66973. Coulter, J. M. and Rose, J. N.   Revision of the genus Myrrhidendron.   Washington Academy of Sciences, 1927, Journal of the Washington Academy of Sciences, Volume 17, Number 9 : 213-215.   Reprint, previous owners book stamp, minor signs of use and age, text in very good condition.    $2.00

10970. Editor.   Proceedings of the Academy and Affiliated Societies, Geological Society.   Washington Academy of Science, 1928, Journal, 18 (9) : 260-268.   Off-print, usual signs of use and age, text in good minus condition.    $4.50

14844. Hay, O. P.   On Some Recent Excursions into Pleistocene Geology and Paleontology.   The Washington Academy of Sciences, 1928, Journal, 19 (21) : 463-469.   Off-print, previous owner marks on front page including Hay Book Stamp as well as J. LeRoy Kay signature, signs of use and age, text in fair condition.    $5.00

10968. Editor.   Proceedings of the Academy and Affiliated Societies, Geological Society.   Washington Academy of Science, 1928, Journal, 18 (19) : 521-524.   Off-print, usual signs of use and age, text in good minus condition.    $2.00

10969. Editor.   Proceedings of the Academy and Affiliated Societies, Geological Society.   Washington Academy of Science, 1928, Journal, 18 (12) : 346-355.   Off-print, usual signs of use and age, text in good minus condition.    $5.00

10966. Editor.   Proceedings of the Academy and Affiliated Societies, Geological Society.   Washington Academy of Science, 1929, Journal, 19 (11) : 231-234.   Off-print, usual signs of use and age, text in good minus condition.    $2.00

10965. Editor.   Proceedings of the Academy and Affiliated Societies, Geological Society.   Washington Academy of Science, 1929, Journal, 19 (13) : 287-293.   Off-print, usual signs of use and age, text in good minus condition.    $3.50

10967. Editor.   Proceedings of the Academy and Affiliated Societies, Geological Society.   Washington Academy of Science, 1929, Journal, 19 (2) : 50-51.   Off-print, usual signs of use and age, text in good minus condition.    $1.00

10964. Editor.   Proceedings of the Academy and Affiliated Societies, Geological Society.   Washington Academy of Science, 1930, Journal, 20 (2) : 29-30.   Off-print, usual signs of use and age, text in good minus condition.    $1.00

10963. Adams, L. H. and Gibson, R. E.   The Cubic Compressibility of Certain Substances.   Washington Academy of Science, 1931, Journal, 21 (16) : 381-390, 6 tables.   Printed wraps, minor signs of use and age, text in very good condition.   Papers from eh Geophysical Laboratory Carnegie Institution of Washington No. 772.   $4.00

10962. Editor.   Proceedings of the Academy and Affiliated Societies.   Washington Academy of Science, 1935, Journal, 25 (11) : 503-513.   Off-print, minor signs of use and age, text in good plus condition.    $4.00

10961. Editor.   Proceedings of the Academy and Affiliated Societies.   Washington Academy of Science, 1935, Journal, 25 (12) : 564-574.   Off-print, minor signs of use and age, text in good plus condition.    $4.00

10960. Editor.   Proceedings of the Academy and Affiliated Societies.   Washington Academy of Science, 1936, Journal, 26 (9) : 383-394.   Off-print, minor signs of use and age, text in good plus condition.    $4.00

10959. Editor.   Proceedings of the Academy and Affiliated Societies.   Washington Academy of Science, 1938, Journal, 28 (9) : 414-424.   Off-print, A. H. Koschmann's copy, usual signs of use and age, text in good plus condition.    $4.00

10958. Miser, H. D.   Our Petroleum Supply.   Washington Academy of Science, 1939, Journal, 29 (3) : 93-109.   Off-print, signed by the author, moisture damage, usual signs of use and age, text in still in good usable condition.    $5.00

10957. Editor.   Proceedings of the Academy and Affiliated Societies.   Washington Academy of Science, 1939, Journal, 29 (8) : 350-355.   Off-print, A. H. Koschmann's copy, usual signs of use and age, text in good plus condition.    $3.00

104884. Mertie, J. B.   Placer Gold in Alaska.   Washington Academy of Science, 1940, Journal of the Washington Academy of Science, Volume 30, Number 3, pages 93-124 with 6 figures.   Softbound, minor signs of use and age, text in good plus condition.    $15.00

10955. Editor.   Proceedings of the Academy and Affiliated Societies.   Washington Academy of Science, 1946, Journal, 36 (4) : 131-136.   Off-print, A. H. Koschmann's copy, usual signs of use and age, text in good plus condition.    $3.00

19302. Thoiry, A. C.   Nomenclatural Notes on Carditids and Lucinids .   Washington Academy of Sciences, 1952, Journal, 42 (4) : 116-122.   Printed wraps, usual signs of use and age discoloration, text in very good condition.    $4.50

19306. Journal of the Washington Academy of Sciences.   Journal of the Washington Academy of Sciences.   Washington Academy of Sciences, 1952, Journal, 42 (4) : 105-136, with multiple illustrations.   Printed wraps, usual signs of use and age discoloration, text in very good condition.    $6.00

19308. Vokes, H. E.   Paleontology: Some Primitive Fossil Pelecypods and Their Possible Significance.   Washington Academy of Sciences, 1954, Journal, 44 (8) : 233-236, 1 figure.   Printed wraps, usual signs of use and age discoloration, text in very good condition.    $3.00

19304. Nicol, D.   Geology: Taxonomy Verses Stratigraphy.   Washington Academy of Sciences, 1958, Journal, 48 (4) : 113-114.   Printed wraps, usual signs of use and age discoloration, text in very good condition.    $2.50

39997. Wilson, J. A.   Darwinian natural selection and vertebrate paleontology.   Washington Academy of Sciences, 1959, Journal of the Washington Academy of Sciences, 49 (7) : 231-233.   Reprint, text, good condition.    $1.00