The earliest account of triangulation

EUROPE

The Face of Edinburgh. By William Power. Drawings by Robert Eadie. Glasgow : John Smith and Son Ltd., 1939. Price 4s. 6d.

Bygone Fife North of the Lomonds. By James Wilkie. Edinburgh : The Moray Press, 1939. Price 7s. 6d.

The Historical Geography of the Shetland Islands. By A. C. O'Dell, M.Sc. Lerwick : T. and J. Manson, Shetland News Office, 1939. Price 12s. 6d.

Scotland: Old Slrathclyde (Lanarkshire, Renfrewshire, Dunbartonshire, Ayrshire, Buteshire, Dumfriesshire, Kirkcudbrightshire, and Wigtonshire). By B. H. Humble. Hutchinson's Pocket Guides, edited by W. S. Shears. London: Hutchin‐son and Co. (Publishers) Ltd., 1939. Price 6d.

ASIA

The Regional Balance of Man. By Radhakamal Mukerjee, M.A., Ph.D. Madras: University of Madras, 1938. Price 8s.

AFRICA

An African Survey : A Study of Problems arising in Africa, South of the Sahara. By Lord Hailey. Price 21s.

Science in Africa : A Review of Scientific Research relating to Tropical and Southern Africa. By E. B. Worthington. Price 10s. 6d.

Capital Investment in Africa. By S. Herbert Frankel. London : Humphrey Milford at the Oxford University Press, 1938. Price 10s. 6d.

ARCTIC REGIONS

Unsolved Mysteries of the Arctic. By Vilhjalmur Stefansson. London : George G. Harrap and Co. Ltd., 1939. Price 10s. 6d.

The Conquest of the Arctic. By Louis Segal. London : George G. Harrap and Co. Ltd., 1939. Price 10s. 6d.

OCEANIA

The Saga of “Cimba.” By Richard Maury. London : George G. Harrap and Co. Ltd., 1939. Price 8s. 6d.

NEW EDITIONS

Our Natural Resources and their Conservation. Edited by A. E. Parkins and J. R. Whitaker. New York: John Wiley and Sons Inc. London: Chapman and Hall Ltd. Second Edition, 1939. Price 25s.     

Evaluation of underwater surveying techniques

The paper discusses the application of a number of manual trilateration surveying systems, an acoustic surveying system and a photogrammetric system applied to a rigid test frame. Results and relative merits are compared and discussed.     

海洋条件下的水下文物埋藏环境概述

出水文物原本埋藏于水下环境,多种破坏因素协同作用,导致病害严重。在对其进行保护修复处理前,需要全面了解文物埋藏历程及病害机理。文物的腐蚀破坏是其与周围环境相互作用的结果。本研究从海水、海洋生物和底质等三大方面探究海洋条件下的水下埋藏环境,并就中国水下考古常见的出水文物类型如陶瓷器、石质、金属质及木质文物的病害类型及原因作简要阐述。     

提升出水瓷器脱盐效率的方法研究

研究了几种在传统浸泡法的基础上提高出水瓷器脱盐效率的方法,电导率测试结果、XRF检测结果以及硝酸银定性分析结果表明,这几种方法均可以在一定程度上提高瓷器脱盐效率,压缩传统浸泡脱盐法所需的时间。     

水下文化遗产原址保护研究概述

长年埋藏于水下的文化遗产,在适应周围的化学、物理及生态环境后可达到一种平衡的保存状态。通过概述水下埋藏环境对文物产生的影响,并对国外文物保护工作者在沉船、水下文物点、古代聚落遗址等类型水下文化遗产原址保护的成果进行研究,为中国水下文化遗产保护相关工作的开展提供一定的借鉴。     

Protection of underwater cultural heritage in China: new developments

As a crucial part of the Maritime Silk Road, underwater cultural heritage plays a role in promoting development of One Belt and One Road in China due to its historical, archaeological and cultural value. The Chinese government has taken effective and reasonable measures to safeguard underwater cultural heritage, with numerous achievements. This paper addresses recent developments in the preservation of underwater cultural heritage with regard to legislation and policy.     

An assessment of quality in underwater archaeological surveys using tape measurements

The quality of an underwater archaeological survey using 3D trilateration with fibreglass tape measures was established on an underwater test site. A precision of 25 mm was calculated for tape measurements giving a position accuracy of 43 mm. Of the 304 measurements which were made during the tests, 20% were found to be in error.