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We report the recovery of short fragments of PCR amplifiable ancient DNA from exoskeletal fragments of the grain weevil Sitophilus granarius (L.) extracted from Roman and medieval deposits in Northern England. If DNA preservation in archaeological insect remains is widespread then many applications in the spheres of evolutionary studies and archaeology can be conceived, some of which are outlined.  相似文献   
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Popular cultural convention holds that, for those with enough gumption, the American frontier was a land of unparalleled opportunity. However, careful research throws doubt on the universality of this convention. Thus, the authors explore factors that increase or decrease opportunities for upward mobility in frontier towns. The authors' longitudinal study of late nineteenth century silver prospectors in Gothic, Colorado, demonstrates that while enthusiastic prospecting in Gothic did not lead to upward social mobility, it did provide enhanced reproductive opportunities.  相似文献   
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This essay argues that white New Orleanians' obsessions with race, sectional politics, and the 'Lost Cause' mythology played a significant role in retarding the Crescent City's economic growth during Reconstruction and the Gilded Age. Because they resisted efforts to recruit northern capital until after their city had fallen irrevocably behind their 'New South' counterparts, New Orleans civil leaders and businessmen exacerbated the severe structural challenges their city faced from the rise of railroads and other market transformations.  相似文献   
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EUROPE

Racial Realities in Europe. By Lothrop Stoddard, London: Charles Scribner's Sons,1924. Price 12s. 6d.

Europe. Vol. I. The Peninsula. Edited by B. C. Wallis, B.Sc. (Lond.). Compendium of Geography and Travel (New Issue). With Maps and Illustrations. London: Edward Stanford, Ltd., 1924. Price 15s. net.

The Roman Occupation of Great Britain. Being Six Ford Lectures delivered by F. Haverfield. Now revised by George Macdonald. With numerous Plans and Illustrations. Oxford: Clarendon Press, 1924, Price 18s. net.

A Pilgrim in Spain. By Aubrey F. G. Bell. London: Methuen and Co., Ltd., 1924. Price 12s. 6d. net.

Die Pflanzenwelt der Hohen Tatra. By Dr. J. Györffy, Kesmai'k: “Turistik und Alpinism us, 1922.”

Unlcnown Warwickshire. By Mary Dormer Harris. Illustrated by J. E. Duggins. London: John Lane, Ltd., 1924. Trice 15s.

Kirlccaldy Burgh and Schyre: Landmarks of Local History. By Rev. John Campbell, D.D.; Rev. Andrew T. Richardson, F.S.A.; Gregor Macgregor, M.A., B.Sc.; George B. Deas, F.S.A.; and Lachlan Macbean. Kirkcaldy: The Fifeshire Advertiser, Ltd., 1924.

The Mineralogy of Scotland. By the late M. Forster Heddle, M.D., F.R.S.E. Edited by J. G. Goodchild. Reprinted under authority of Alex. Thoms, by the Council of University College, Dundee. Assisted by D. E. I. Innes, M.A., M.C. Two volumes. St. Andrews: W. C. Henderson, 1924. Price 15s.

Clydesdale. By A. MacCallum Scott. London: Thornton Butterworth, Ltd., 1924. Price 7s. 6d, net.

Gone Abroad: A Story of Travel, chiefly in Italy and the Balearic Isles. By Douglas Goldring. London: Chapman and Hall, Ltd., 1925. Price 12s. 6d.

ASIA

Die Feldfrüchte Indiens in ihrer Geographischen Verbreitung. Von Dr. Th. H. Engelbrecht. Erster Teil: Text. Hamburg: L. Friederichsen und Cie., 1914.

Tibet: Past and Present. By Sir Charles Bell, K.C.I.E., C.M.G., Late British Political Representative in Tibet, Bhutan, and Sikkim. Author of Grammar of Colloquial Tibetan, and English‐Tibetan Colloquial Dictionary. Oxford: The Clarendon Press, 1924. Price 21s. net.

AFRICA

The Vast Sudan. By A. Radclyffe Dugmore. London: Arrowsmith, Ltd., 1924. Price 21s.

Mysteries of the Libyan Desert. By W. J. Harding King, F.R.G.S. London: Seeley, Service and Co., Ltd., 1925. Price 21s. net.

Egypt under the Egyptians. By Murray Harris. London: Chapman and Hall, Ltd., 19–25. Price 12s. 6d.

AMERICA

Mexico in Revolution. By Charlotte Cameron, O.B.E. London: Seele Service and Co., Ltd., 1924. Price 21s.

ARCTIC

My Eskimo Friends: "Nanook of the North.’’ By Robert J. Flaherty, F.R.G.S., in collaboration with Frances Hubbard Flaherty. Illustrated with Photogravures and Colour Plates from Photographs by the Author, Half‐tone Drawings by Eskimo artists, and Maps. London: William Heine‐mann, Ltd., 1924, Price 21s.

GENERAL

The Menace of Colour. By Prof. J. W. Gregory, F.R.S., D.Sc. London: Seeley, Service and Co., Ltd., 1925. Price 12s. 6d. net.

Adventures in Turkey and Russia. By E. H. Keeling, M.O. London: John Murray, 1924. Price 10s. 6d. net.

Ben Kendim: A Record of Eastern Travel. By Lieut.‐Col. Hon. Aubrey Herbert, edited by D. McCarthy. London: Hutchinson and Co., 1924. Price 21s. net.

Selected Papers on Anthropology, Travel and Exploration. By Sir Richard Burton, edited by N. M. Penzer. London: Philpot, Ltd., 1924. Price 15s.

EDUCATIONAL

Certificate Geographies: The Mediterranean. By O. J. R. Howarth, O.B.E., M.A. Oxford: Clarendon Press, 1924. Price 2s. 6d.

Bell's Natural Science Series: Readable Physical Geography. By J. A. O. Muirhead, B.A. London: G. Bell and Sons, Ltd., 1925. Price 2s. 4d.

The “Explorer” Geographies: Asia. By J. Thomas; M.A. London: G. Bell and Sons, Ltd., 1924. Price 2s. 6d.  相似文献   
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